The Journal of Contemporary Dental Practice

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2013 | November-December | Volume 14 | Issue 6

EDITORIAL

Arvind Babu

Emergent Areas to visualize by the Journal Strategy Holders

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:1] [Pages No:0 - 0]

PDF  |  DOI: 10.5005/jcdp-14-6-i  |  Open Access |  How to cite  | 

RESEARCH ARTICLE

Evamiris Vasques de França Landim, Maria Goretti Freire de Carvalho, Rejane Andrade de Carvalho, Ana Fl#x00E1;via Granville-Garcia, Rennaly de Freitas Lima, Edja Maria Melo de Brito Costa

Assessment of Gingival Mucosa of Infant Rats during Teething

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1009 - 1013]

PDF  |  DOI: 10.5005/jp-journals-10024-1441  |  Open Access |  How to cite  | 

Abstract

Aim

The aim of the present study was to perform a histological analysis of the gingival mucosa in infant rats undergoing the teething process.

Materials and methods

Eighteen Wistar rats between 8 and 15 days of life were distributed among three groups: group A—without teething; group B—eruption of incisors; and group C— eruption of incisors and molars. The samples included teeth and periodontal tissue from the region of the incisors and molars of each animal. Fragments were processed for histological analysis and submitted to immunohistochemical analysis.

Results

In the 8-day-old rats, mild inflammatory infiltrate predominated with mononuclear cells in the pericoronal follicles of the incisors and molars. At 12 days of age, all animals exhibited moderate inflammation in the pericoronal follicles and epithelium of the incisors and mild inflammatory infiltrate with predominantly mononuclear cells in the molars. At 15 days of age, moderate neutrophilic exudate was found in the pericoronal follicles and epithelium of the incisors and molars. Immunohistochemical analysis revealed positivity for interleukin- 1b in the pericoronal follicles in the pre-eruption phase.

Conclusion

An inflammatory reaction with progressive intensity occurs during the teething process, the response of which is preceded by the release of interleukin-1b.

Clinical significance

Morphological proof of events that occur during teething that can affect the dynamics of the physiologic process manifesting as clinical symptoms.

How to cite this article

de França Landim EV, de Carvalho MGF, de Carvalho RA, Granville-Garcia AF, de Freitas Lima R, de Brito Costa EMM. Assessment of Gingival Mucosa of Infant Rats during Teething. J Contemp Dent Pract 2013;14(6):1009- 1013.

RESEARCH ARTICLE

Mohadese Azarsina, Shahin Kasraei, Rasoul Yousefi-Mashouf, Nima Dehghani, Mehdi Shirinzad

The Antibacterial Properties of Composite Resin Containing Nanosilver against Streptococcus mutans and Lactobacillus

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1014 - 1018]

PDF  |  DOI: 10.5005/jp-journals-10024-1442  |  Open Access |  How to cite  | 

Abstract

Aim

The aim was to evaluate the antibacterial properties of composite resin containing nanosilver against Streptococcus mutans (SM) and Lactobacillus (L).

Materials and methods

Nanosilver was added to Z250 composite at 0.5 and 1% by weight. In order to confirm the homogenous distribution of the nanoparticles in the composite resin, SEM-EDX analysis was performed on one sample in each group. Z250 composite without nanosilver was used as control. Direct contact test was used to test the antibacterial properties of nanoparticle-loaded composites: 0.001 ml of 0.5 Mc Farland suspension of MS and L was placed on composite disks, and incubated for 1 hour in 5 to 10% CO2 incubator at 37°C. Samples were placed in 0.5 ml of sterile BHI broth and incubated for 2 hours in CO2 incubator. Afterwards, 0.001 ml liquid from each medium was distributed on blood agar plates and incubated for 48 hours in CO2 incubator. The numbers of bacterial colonies were counted visually. Data were analyzed using Two-way ANOVA and Tukey HSD test. Significance level was set at 0.05.

Results

Addition of nanosilver to composite resin had a significant effect on reduction of the number of SM and L colonies (p = 0.000). The antibacterial properties of composite resins are different depending on the concentration of nanosilver (p = 0.014). Tukey test indicated that increase in the concentration of nanosilver caused the increase in antibacterial properties of composite resin.

Conclusion

Addition of silver nanoparticles to Z250 composite could significantly inhibit the growth of Streptococcus mutans and Lactobacillus on the surface of this composite.

Clinical significance

The addition of nanosilver to Z250 composite could inhibit the growth of SM and L on the surface of the restoration and therefore prevent the occurrence of secondary caries.

How to cite this article

Azarsina M, Kasraei S, Yousefi- Mashouf R, Dehghani N, Shirinzad M. The Antibacterial Properties of Composite Resin Containing Nanosilver against Streptococcus mutans and Lactobacillus. J Contemp Dent Pract 2013;14(6):1014-1018.

RESEARCH ARTICLE

Alfred Naaman, Issam Tanios Khalil, Tony Sarkis

MM-MTA for Direct Pulp Capping: A Histologic Comparison with ProRoot MTA in Rat Molars

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1019 - 1023]

PDF  |  DOI: 10.5005/jp-journals-10024-1443  |  Open Access |  How to cite  | 

Abstract

Aim

To compare the histomorphological response of rat dental pulps capped with MM-MTA and ProRoot MTA at 1, 2 and 4 weeks postoperatively.

Materials and methods

Direct pulp capping with MM-MTA and ProRoot MTA, overlaid with light-cured composite resin, was performed on right and left maxillary first molars of 20 Wistar rats. Animals were killed at 1, 2 and 4 weeks postoperatively. Biopsy samples were stained and viewed by light microscopy to determine dentin bridge formation. Data were statistically evaluated with the Kruskal-Wallis test (p < 0.05).

Results

Absence of dentin bridge formation at 1 week, partial dentin bridge formation at 2 weeks and complete dentin bridge formation at 4 weeks are observed with MM-MTA and ProRoot MTA. The results showed no statistically significant difference between both materials at 4 weeks.

Conclusion

Both materials produced similar responses in the pulp when used for pulp capping in intact, caries-free molars of rats.

How to cite this article

Khalil IT, Sarkis T, Naaman A. MM-MTA for Direct Pulp Capping: A Histologic Comparison with ProRoot MTA in Rat Molars. J Contemp Dent Pract 2013;14(6):1019- 1023.

RESEARCH ARTICLE

Master Luqman, Syed Sadatullah, Ali Azhar Dawasaz, Ahmed A Almeshari, Rafi Ahmad Togoo

Radiation Risk Assessment in Professionals Working in Dental Radiology Area using Buccal Micronucleus Cytome Assay

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:4] [Pages No:1024 - 1027]

PDF  |  DOI: 10.5005/jp-journals-10024-1444  |  Open Access |  How to cite  | 

Abstract

Objective

The aim of this study was to assess the incidence of micronuclei (MN) in buccal mucosal cells of professionals working in radiology area to determine the risk of stochastic effects of radiation.

Materials and methods

All the professionals and students working in King Khalid University - College of Dentistry radiology area were included in the Risk Group (RG = 27). The Control Group (CG = 27) comprised of healthy individual matching the gender and age of the RG. Buccal mucosal scraping from all the 54 subjects of RG and CG were stained with Papanicolaou stain and observed under oil immersion lens (×100) for the presence of micronuclei (MN) in the exfoliated epithelial cells.

Results

There was no significant difference between the incidence of MN in RG and CG (p = >0.05) using t-test.

Conclusion

Routine radiation protection protocol does minimize the risk of radiation induced cytotoxicity, however, screening of professionals should be carried out at regular intervals.

How to cite this article

Sadatullah S, Dawasaz AA, Luqman M, Assiry AA, Almeshari AA, Togoo RA. Radiation Risk Assessment in Professionals Working in Dental Radiology Area using Buccal Micronucleus Cytome Assay. J Contemp Dent Pract 2013;14(6):1024-1027.

RESEARCH ARTICLE

Sangeetha Vallikanthan, K Balakoti Reddy, Shreemoy Dash, Sowmya Kallepalli, N Chakrapani, Vamsi Kalepu

A Comparative Evaluation of Cleaning Efficacy (Debris and Smear Layer Removal) of Hand and Two NiTi Rotary Instrumentation Systems (K3 and ProTaper): A SEM Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:8] [Pages No:1028 - 1035]

PDF  |  DOI: 10.5005/jp-journals-10024-1445  |  Open Access |  How to cite  | 

Abstract

Objectives

The present study was conducted to compare the cleaning efficacy (debris and smear layer removal) of hand and two NiTi rotary instrumentation systems (K3 and ProTaper).

Materials and methods

Sixty single rooted human maxillary anterior teeth decoronated at the cementoenamel junction were used. All the specimens were divided into four groups of 15 teeth each, group I—ProTaper rotary instrumentation done, group II—K3 rotary instrumentation done, group III—Stainless steel K-file instrumentation done, group IV—root canal irrigation without instrumentation. Root canal preparation was done in a crown down manner and 3% sodium hypochlorite was used as irrigant after each file followed by final rinse with 5 ml of 17% EDTA solution, then specimens were scanning electron microscopic (SEM) examination.

Results

Statistical analysis was done using one-way ANOVA followed by post hoc Tukey's HSD test. Group I showed highly statistical significant difference compared to other groups. There was no statistically significant difference considering smear layer at any levels among the groups with no smear layer formation in group IV.

Conclusion

ProTaper rotary instrumentation showed the maximum cleaning efficacy followed by K3 rotary instrumentation in the coronal, middle and apical thirds of the root canal.

Clinical significance

ProTaper rotary instruments are more efficient than hand and K3 rotary instruments during root canal treatment.

How to cite this article

Reddy KB, Dash S, Kallepalli S, Vallikanthan S, Chakrapani N, Kalepu V. A Comparative Evaluation of Cleaning Efficacy (Debris and Smear Layer Removal) of Hand and Two NiTi Rotary Instrumentation Systems (K3 and ProTaper): A SEM Study. J Contemp Dent Pract 2013;14(6):1028-1035.

RESEARCH ARTICLE

Abdul Mujeeb, Bhadra Rao, Satti Narayana Reddy, Kanchan Mehta, G Saritha

An Evaluation of Shear Bond Strength of Self-Etch Adhesive on Pre-etched Enamel: An in vitro Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:3] [Pages No:1036 - 1038]

PDF  |  DOI: 10.5005/jp-journals-10024-1446  |  Open Access |  How to cite  | 

Abstract

Aim

To determine the shear bond strength of self-etch adhesive G-bond on pre-etched enamel.

Materials and methods

Thirty caries free human mandibular premolars extracted for orthodontic purpose were used for the study. Occlusal surfaces of all the teeth were flattened with diamond bur and a silicon carbide paper was used for surface smoothening. The thirty samples were randomly grouped into three groups. Three different etch systems were used for the composite build up: group 1 (G-bond self-etch adhesive system), group 2 (G-bond) and group 3 (Adper single bond). Light cured was applied for 10 seconds with a LED unit for composite buildup on the occlusal surface of each tooth with 8 millimeters (mm) in diameter and 3 mm in thickness. The specimens in each group were tested in shear mode using a knife-edge testing apparatus in a universal testing machine across head speed of 1 mm/ minute. Shear bond strength values in Mpa were calculated from the peak load at failure divided by the specimen surface area. The mean shear bond strength of all the groups were calculated and statistical analysis was carried out using one-way Analysis of Variance (ANOVA).

Results

The mean bond strength of group 1 is 15.5 Mpa, group 2 is 19.5 Mpa and group 3 is 20.1 Mpa. Statistical analysis was carried out between the groups using one-way ANOVA. Group 1 showed statistically significant lower bond strength when compared to groups 2 and 3. No statistical significant difference between groups 2 and 3 (p < 0.05).

Conclusion

Self-etch adhesive G-bond showed increase in shear bond strength on pre-etched enamel.

How to cite this article

Rao B, Reddy SN, Mujeeb A, Mehta K, Saritha G. An Evaluation of Shear Bond Strength of Self-Etch Adhesive on Pre-etched Enamel: An In vitro Study. J Contemp Dent Pract 2013;14(6):1036-1038.

RESEARCH ARTICLE

R Vamshidhar Reddy, K Tanveer, K Dinesh Sharma, Naveen Kokkula, PL Suresh, Meher Sudhakar

Evaluation of Effectiveness of Chemical Disinfectants in Reducing Bacterial Growth on Orthodontic Instruments

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1039 - 1043]

PDF  |  DOI: 10.5005/jp-journals-10024-1447  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Reddy RV, Tanveer K, Sharma KD, Kokkula N, Suresh PL, Sudhakar M. Evaluation of Effectiveness of Chemical Disinfectants in Reducing Bacterial Growth on Orthodontic Instruments. J Contemp Dent Pract 2013;14(6): 1039-1043.

RESEARCH ARTICLE

Alvaro Henrique Borges, Matheus Coelho Bandéca, Fabio Renato Manzolli Leite, Amauri Antiquera Leite, José Eduardo Cezar Sampaio, Shelon Cristina Souza Pinto, Lucas Amaral Fontanari, Rodrigo Cavassim

Influence of Nicotine and Cotinine Impregnation on the First Step of Periodontal Regeneration: Clot Stabilization

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1044 - 1048]

PDF  |  DOI: 10.5005/jp-journals-10024-1448  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Pinto SCS, Leite FRM, Fontanari LA, Cavassim R, Leite AA, Bandéca MC, Borges AH, Sampaio jec. Influence of Nicotine and Cotinine Impregnation on the First Step of Periodontal Regeneration: Clot Stabilization. J Contemp Dent Pract 2013;14(6):1044-1048.

RESEARCH ARTICLE

Gülsen Can, Baransel Özmumcu, Pinar Altinci

In vitro Retention Loss of Attachment-retained Removable Partial Denture

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1049 - 1053]

PDF  |  DOI: 10.5005/jp-journals-10024-1449  |  Open Access |  How to cite  | 

Abstract

Aim

To investigate the importance of attachment types on the retention loss of extracoronal attachment-retained removable partial dentures depending on the usage period.

Materials and methods

In order to observe the retention loss of 5 different attachments (OT Strategy, OT Strategy-metal protected, Vario-stud-snap and Vario-soft 3 and ERA-RV) over time, attachment-retained partial dentures representing Kennedy II mod. I case were placed in a custom-made, retention test machine. For each minute, eight separating and joining movements were performed and retention values (Newton) of the attachments were recorded by computer. The retention tests implemented in 540,1080 and 2160 cycles. The data were evaluated statistically according to the two-way ANOVA and Tukey parametrical tests.

Results

The slide type attachment providing the best retention force was observed to be the most worn out by this process (p < 0.01) while the ball type attachments, which typically have the lesser retention force, showed less retention loss (p < 0.01).

Conclusion

It can be concluded that the retention attributes of the attachment-retained dentures were affected by the specific type of precision attachment as well as the usage period.

Clinical significance

Precision attachments with ball-type plastic matrices may be recommended for the clinical use due to their retention stability over time.

How to cite this article

Can G, Özmumcu B, Altinci P. In vitro Retention Loss of Attachment-retained Removable Partial Denture. J Contemp Dent Pract 2013;14(6):1049-1053.

RESEARCH ARTICLE

Sphoorthi Anup Belludi, Shiras Verma, Ruchi Banthia, Prashanth Bhusari, Simran Parwani, Sameer Kedia, SV Saiprasad

Effect of Lycopene in the Treatment of Periodontal Disease: A Clinical Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1054 - 1059]

PDF  |  DOI: 10.5005/jp-journals-10024-1450  |  Open Access |  How to cite  | 

Abstract

Purpose

Several epidemiologic studies have suggested a role of tomato products in decreasing the risk of the development of diseases related to oxidative stress (cancer and other chronic diseases). Oxidative stress may result in periodontal tissue damage either directly or indirectly. Lycopene, a powerful antioxidant and the main carotenoid in tomato products possesses the greatest quenching ability of singlet oxygen among the various carotenoids and is effective in protecting blood lymphocytes from NOO-radical damage. Hence, the aim of the present study is to compare the effect of systemically administered lycopene as an adjunct to scaling and root planing in patients with gingivitis and periodontitis.

Materials and methods

Twenty systemically healthy patients were involved in a randomized, double-blind, parallel study and based on their clinical signs were divided into two groups of mild to moderate periodontitis (A) and moderate gingivitis (B). The subjects under the groups A and B were randomly distributed between the two treatment groups: test group (n = 5), 4 mg lycopene/day for 2 weeks with oral prophylaxis (full mouth scaling and root planing (SRP) completed within 24 hours) and controls (n = 5), receiving only oral prophylaxis. Pre- and post-therapeutic periodontal parameters were evaluated.

Results

In group A, statistically significant improvement in CAL was reported in test group as compared to control group. In group B, the difference between pretreatment and post-treatment bleeding on probing scores was found to be statistically non-significant in both groups.

Conclusion

Results show that lycopene is a promising treatment modality as an adjunct to full mouth SRP of the oral cavity in patients with moderate periodontal disease.

Clinical significance

Modulation of the free radical production seems to be essential for the inhibition of tissue destruction, and treatment with antioxidants, like lycopene, which is the most potent among them will block the production of free ROS or its effects might prove to be therapeutically valuable.

How to cite this article

Belludi SA, Verma S, Banthia R, Bhusari P, Parwani S, Kedia S, Saiprasad SV. Effect of Lycopene in the Treatment of Periodontal Disease: A Clinical Study. J Contemp Dent Pract 2013;14(6):1054-1059.

RESEARCH ARTICLE

So Ran Kwon, R Steven Kurti, Berj Der Boghossian

Direct Measurement of Stain Retention in Third Molars

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1060 - 1064]

PDF  |  DOI: 10.5005/jp-journals-10024-1451  |  Open Access |  How to cite  | 

Abstract

Aim

To directly determine the mass of dye retained in teeth following exposure to aqueous solutions of Rhodamine B and to correlate tooth color modifications.

Materials and methods

Extracted third molars (25) were selected and sectioned at the cementoenamel junction for coronal staining. Pulp tissue was removed and teeth sonicated to remove debris. Teeth were kept in deionized water for 12 hours and subsequently weighed. They were then stained for 4 hours in 5 ml of Rhodamine B dye at two different concentrations. The samples were then subjected to two 8 hours rinses in deionized water. The tooth shade was recorded with a commercially available intraoral spectrophotometer (Vita Easyshade Compact, Vita Zahnfabrik, Bad Säckingen, Germany) at baseline (T1), after dye immersion (T2), and after water rinsing (T3). A standard absorption curve was then used to calculate the dye mass in the rinse solutions as well as the posttreatment stain solutions. All solution optical absorption curves were recorded using a laboratory research spectrophotometer (Cary 300, Agilent, USA). The mass of dye in each solution was then calculated from the standard curve relating optical absorption to aqueous dye concentration.

Results

An average change in the CIE (a) values of 8.0 ± 0.3 were observed for concentrations of Rhodamine B similar to the optical appearance of wine or other darkly colored juices while an increase of 10× in concentration gave values too high to measure using a standard intraoral spectrophotometer. By measuring the optical absorbance of the staining solutions before and after the staining process, we were able to measure dye retention of 54 ± 26 micrograms per gram of tooth.

Conclusion

While no significant correlation could be found between the amount of stain retention in the dentition and the tooth shade due to the high uncertainties in the spectroscopic measurements, we were able to show that this method should admit such comparisons for future research.

Clinical significance

The development of a reliable chromophore infiltration model may provide standardized and reproducible results in evaluating tooth whitening efficacy.

How to cite this article

Kurtir Jr RS, Boghossian BD, Kwon SR. Direct Measurement of Stain Retention in Third Molars. J Contemp Dent Pract 2013;14(6):1060-1064.

RESEARCH ARTICLE

P Ratnakar, S Aspalli Nagaveni, K Reddy Balakoti, Karan Smita, SV Satish, T Aravind

Quantitative Evaluation of Apical Extrusion of Debris and Irrigants using Four Rotary Instrumentation Systems: An in vitro Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1065 - 1069]

PDF  |  DOI: 10.5005/jp-journals-10024-1452  |  Open Access |  How to cite  | 

Abstract

Clinical significance

The apical extrusion of infected debris may have the potential to disrupt the balance between microbial aggression and host defense, resulting in incidents of acute inflammation. During preparation, irrigants and debris, such as bacteria, dentin filings and necrotic tissue may be extruded into the periradicular region leading to periapical inflammation and postoperative flare ups. Using an instrumentation technique that minimizes apical extrusion would be beneficial to both the practitioner and patient.

The purpose of the study was to evaluate the weight of debris and volume of irrigant extruded apically from extracted teeth in vitro after endodontic instrumentation using four different rotary root canal instrumentation systems.

Materials and methods

Four groups of each 20 extracted mandibular premolars were instrumented using one of the four systems: ProTaper Universal (Dentsply Maillefer, Ballaigues, Switzerland)), Hero-shaper (MicroMega, Besancon, France), RaCe (FKG Dentaire, La-Chaux-de-Fonds, Switzerland) and K3 (SybronEndo, West Collins, CA). Debris and irrigant extruded from the apical foramen during instrumentation were collected in preweighed test tubes. Volume of irrigant extruded was noted. The containers were stored in incubator at 70° for two days to evaporate the moisture. Weight of dry debris was noted.

Statistical analysis

Data was analyzed using Kruskall-Wallis and Mann-Whitney U test at a significance of 0.001.

Results

The results indicated that all of the instrumentation systems tested caused measurable apical extrusion of debris and irrigants. Higher extrusion was observed with Protaper system which was statistically significant with Hero-Shaper, RaCe and K3 systems. There were no statistical differences between Hero-shaper, K3 and RaCe systems (p < 0.05).

Conclusion

All instrumentation techniques apically extruded debris and irrigant. However, Hero-shaper, K3 and RaCe systems produced less extruded debris and irrigant than the Protaper system.

How to cite this article

Nagaveni SA, Balakoti KR, Smita K, Ratnakar P, Satish SV, Aravind T. Quantitative Evaluation of Apical Extrusion of Debris and Irrigants using Four Rotary Instrumentation Systems: A in vitro study. J Contemp Dent Pract 2013;14(6):1065-1069.

RESEARCH ARTICLE

N Simhachalam Reddy, Jayaraman Siddaramayya, Arunkumar B Sajjanar, Brinda Suhas Godhi, Raju P Krishnam

Fiber Technology in Space Maintainer: A Clinical Follow-up Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1070 - 1075]

PDF  |  DOI: 10.5005/jp-journals-10024-1453  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Saravanakumar MS, Siddaramayya J, Sajjanar AB, Godhi BS, Reddy NS, Krishnam RP. Fiber Technology in Space Maintainer: A Clinical Follow-up Study. J Contemp Dent Pract 2013;14(6):1070-1075.

RESEARCH ARTICLE

NK Lokesh, CMS Krishna Prasad, D Lakshmayya Naidu, T Harini, H Vidyadhara Lakshmi, HS Dharmesh

Biomechanical Characteristics of Microimplant for Anchorage in Orthodontics: A 3D Finite Element Model Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:4] [Pages No:1076 - 1079]

PDF  |  DOI: 10.5005/jp-journals-10024-1454  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Naidu DL, Harini T, Prasad CMSK, Lakshmi HV, Lokesh NK, Dharmesh HS. Biomechanical Characteristics of Microimplant for Anchorage in Orthodontics: A 3D Finite Element Model Study. J Contemp Dent Pract 2013;14(6):1076-1079.

RESEARCH ARTICLE

Md Jalaluddin, Shabeer Ahamed, Imran Khalid, Ninad Moon, TK Shafi, Fareedi Mukram Ali

The Use of Controlled Release Locally Delivered 10% Doxycycline Hyclate Gel as an adjunct to Scaling and Root Planing in the Treatment of Chronic Periodontitis: Clinical and Microbiological Results

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:7] [Pages No:1080 - 1086]

PDF  |  DOI: 10.5005/jp-journals-10024-1455  |  Open Access |  How to cite  | 

Abstract

Background

Local delivery of antimicrobial agents provides higher concentration of the drug in the periodontal site for longer periods than systemically delivered methods. In the present study an attempt is made to know the efficacy of controlled local drug delivery of doxycycline as an adjunctive treatment in the management of chronic periodontitis.

Materials and methods

A total of 12 patients, diagnosed as Chronic Periodontitis in the age of 25 to 55 years, were selected of both the sexes in this study. They were divided into Experimental group consisted of 30 sites who received complete scaling and root planing (SRP) followed by placement of Atridox gel and control group consisted of 30 sites who received only SRP. Clinical parameters were recorded at, baseline, days 30, 90 and 180. Parameters were plaque index, gingival index, gingival bleeding index and microbial analysis, probing pocket depth and Clinical attachment level (CAL). The microbiological analysis was done at baseline visit and at 90th day. Probing pocket depth and CAL were recorded only on day 0 and 180th day.

Results

In 180 days study, both the groups exhibited a significant improvement in periodontal status. Significant gain in attachment level was observed in both the group. Between both the groups the clinical parameters in the experimental groups exhibited better results as compared to the control group. Both the groups exhibited significant reduction in the number of spirochetes.

Conclusion

Combination therapy of SRP and 10% DH gel demonstrated better results at all levels suggesting that this therapy can play a significant role as an adjunct to SRP in the management of chronic periodontitis.

How to cite this article

Ahamed S, Jalaluddin Md, Khalid I, Moon N, Shafi TK, Ali FM. The Use of Controlled Release Locally Delivered 10% Doxycycline Hyclate Gel as an adjunct to Scaling and Root Planing in the Treatment of Chronic Periodontitis: Clinical and Microbiological Results. J Contemp Dent Pract 2013;14(6):1080-1086.

RESEARCH ARTICLE

Amin Rahpeyma, Saeedeh Khajehahmadi

Effects of Bimax and Segmental Surgeries for Correction of Bimaxillary Dentoalveolar Protrusion Class I on Soft Tissue Parameters: Upper lip Thickness and Curvature, Nasolabial Angle and Nasal Prominence

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:7] [Pages No:1087 - 1093]

PDF  |  DOI: 10.5005/jp-journals-10024-1456  |  Open Access |  How to cite  | 

Abstract

Aim

Results of this study can show if bimax surgery for posterior repositioning of maxilla and correction of BPCLI has priority to the currently used segmental orthognathic surgery or not.

Materials and methods

This study was done on 40 whiteskinned Iranian patients with bimaxillary dentoalveolar protrusion class I (BPCLI) who sought treatment for their deformity. In the first group, treatment includes segmental surgery for backward replacement of anterior segment of the upper and lower jaw. In the second group, treatment was bimax surgery, in which whole upper and lower jaw moved backward. Twenty patients were included in each group. For this purpose, we measured upper lip thickness (ULT, distance between LS and IA), nose prominence (NP, distance between nasal tip and the perpendicular line from upper lip vermilion on FHP), subsulcus depth (SSD, distance of SLS from this perpendicular line), SN to H line distance and finally, nasolabial angle (NLA) before and after surgery.

Results

In our study, 65% of patients were female and the mean of age was 27 (17-39) years old. The mean of SNA, SNB, ANB and INA in our patients were 81.7 ± 2.9, 78.8 ± 2.8, 4.50 ± 1.4 and 120 ± 8.7, respectively. All variables except SSD were analyzed with t-test to compare the results of two methods of surgery. Differences in the values of NP, NLA, SN to H line distance and ULT before and after segmental and bimax surgeries between before and after surgery were significant. After surgeries, ULT and the SN to H line distance reduced significantly, and NLA became corrected to its normal range (90-110).

Conclusion

The results of this study showed that bimax and segmental surgeries can effectively correct BPCLI. Because of possible dental and periodontal complications of segmental surgery, we highly recommend bimax surgery for treatment of BPCLI.

How to cite this article

Rahpeyma A, Khajehahmadi S. Effects of Bimax and Segmental Surgeries for Correction of Bimaxillary Dentoalveolar Protrusion Class I on Soft Tissue Parameters: Upper lip Thickness and Curvature, Nasolabial Angle and Nasal Prominence. J Contemp Dent Pract 2013;14(6):1087-1093.

RESEARCH ARTICLE

Renato de Toledo Leonardo, Gisselle Moraima Chávez-Andrade, Milton Carlos Kuga, Marco Antonio Hungaro Duarte, Katia Cristina Keine, Arnaldo Sant Anna-Junior, Marcus Vinicius Reis Só

Evaluation of the Physicochemical Properties and Push- Out Bond Strength of Mta-based Root Canal Cement

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1094 - 1099]

PDF  |  DOI: 10.5005/jp-journals-10024-1457  |  Open Access |  How to cite  | 

Abstract

Aim

This study investigated the flowability, setting time, pH, calcium release and bond strength of a MTA-based cement (MTA Fillapex®) compared to AH Plus and Sealapex.

Materials and methods

For the flowability test, the ISO 6876:2001 specification was utilized and for the setting time test, the ASTM C266-03 specification was utilized. For the pH and calcium release measurements, 10 samples were prepared for each group and analyzed for several different periods. For the push-out test, dentin disks were distributed into three groups, according to the cement utilized and into three subgroups, according to the root third (n = 10). After obturation, the specimens underwent push-out testing. The data were compared statistically using a significance level of 5%.

Results

The flowability of all materials was found to be similar (p > 0.05). The setting times were different among the groups tested (MTA Fillapex < Sealapex < AH Plus) (p < 0.05). At days 7 and 28, the MTA Fillapex presented the higher pH values (p < 0.05). At 24 hours and at 14 days, the calcium release of the MTA Fillapex was similar to that of Sealapex (p > 0.05). AH Plus presented the lowest pH and calcium release values (p < 0.05). In all root thirds, the adhesion to the dentin of the MTA Fillapex and Sealapex were significantly lower than that of AH Plus (p < 0.05).

Conclusion

MTA Fillapex and Sealapex presented several similar properties and both were found to be different than AH Plus.

Clinical significance

This study evaluated the physicochemical and mechanical properties of new MTA-based root canal cement, in order to use this scaler in root canal fillings. MTA Fillapex showed satisfactory properties for clinical use.

How to cite this article

Chávez-Andrade GM, Kuga MC, Duarte MAH, de Toledo Leonardo R, Keine KC, Anna-Junior AS, Só MVR. Evaluation of the Physicochemical Properties and Push-Out Bond Strength of Mta -based Root Canal Cement. J Contemp Dent Pract 2013;14(6):1094-1099.

RESEARCH ARTICLE

Mateus Rodrigues Tonetto, Daher Antonio Queiroz, Marcelo Massaroni Peçanha, Ana Christina Claro Neves, Fausto Frizzera, Laís Regiane Silva-Concílio

Influence of Disinfection with Peracetic Acid and Hypochlorite in Dimensional Alterations of Casts obtained from Addition Silicone and Polyether Impressions

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1100 - 1105]

PDF  |  DOI: 10.5005/jp-journals-10024-1458  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Queiroz DA, Peçanha MM, Neves ACC, Frizzera F, Tonetto MR, Silva-Concílio LR. Influence of Disinfection with Peracetic Acid and Hypochlorite in Dimensional Alterations of Casts obtained from Addition Silicone and Polyether Impressions. J Contemp Dent Pract 2013;14(6):1100-1105.

RESEARCH ARTICLE

Julio Pedra e Cal Neto, José de Albuquerque Calasans-Maia, Natalia Valli de Almeida, Helen Rohen, Maria Angélica Galvão Freire

Effect of a Metal Primer on the Adhesive Interface between Composite and Lingual Brackets

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:3] [Pages No:1106 - 1108]

PDF  |  DOI: 10.5005/jp-journals-10024-1459  |  Open Access |  How to cite  | 

Abstract

Aim

To test the null hypothesis was that there is no difference in the shear strength of indirectly bonded lingual brackets with or without prior application of metal primer on their bases.

Materials and methods

Forty recently extracted human premolars were obtained and randomly divided into two groups of 20 each: group I (control), phosphoric acid and indirect bonding with Maximum Cure (Reliance Orthodontic Products, Itasca, IL, USA); and group II, application of metal primer (Metal Primer, Reliance Orthodontic Products) on bracket base prior to conditioning and indirect bonding. All products were used according to the manufacturer's instructions. A universal testing machine was used to apply a shear force directly onto the enamel- bracket interface at a speed of 1.0 mm/min.

Results

Mean (SD) shear bond strength for group I was 12.87 (5.75) MPa and for the group II was 18.47 (8.48) MPa. The Student's t-test showed a significant difference (p = 0.0311) between the groups. The chi-square test for the adhesive remnant index (ARI) indicated that there was a significant difference (p = 0.2750).

Conclusion

The application of metal primer increased the adhesion of lingual brackets, and may be a promising procedure for clinical orthodontics.

How to cite this article

e Cal Neto JP, de Albuquerque Calasans-Maia J, de Almeida NV, Rohen H, Freire MAG. Effect of a Metal Primer on the Adhesive Interface Between Composite and Lingual Brackets. J Contemp Dent Pract 2013;14(6):1106- 1108.

RESEARCH ARTICLE

Çağatay Barutcigil, Osman Tolga Harorli, Yusuf Ziya Bayindir, Funda Bayindir

Effect of Water Storage and Additional Polymerization on the Color Parameters of Flowable Resin Composites

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1109 - 1114]

PDF  |  DOI: 10.5005/jp-journals-10024-1460  |  Open Access |  How to cite  | 

Abstract

Aims

Tooth colored dental restorative materials should maintain their chromatic properties throughout their service period. The aim of this study was to examine the possible color changes of flowable resin composite filling materials following water storage. The effect of additional light curing on color stability of restorative materials was also investigated.

Materials and methods

Six brands of light-cured flowable resin composites of the same shade (A3) were prepared from two groups generated by curing for 20 or 60 seconds. The initial color parameters of the flowable composite samples were measured with a dental colorimeter according to the CIELAB color scale, and the samples were stored in distilled water at 37oC. Following 2 weeks' water storage, the measurements were repeated. The color differences (ΔE*ab) were calculated according to the CIELAB formula. Statistical differences between the measurements were analyzed by ANOVA and Duncan's tests.

Results

No initial color variation between the samples cured for 20 seconds and 60 seconds was perceptible (ΔE*ab<3.3). However, after 2 weeks' water storage, a noticeable color change, ΔE*ab>3.3, was detected in Eco-flow, Filtek Supreme and Grandio samples in both polymerization groups.

Conclusion

Flowable resin composites may exhibit a significant color change as a result of water storage. Sixty seconds exposure period does not influence the final color.

Clinical significance

Clinicians should be aware of color shifts in flowable resins.

How to cite this article

Harorli OT, Barutcigil C, Bayindir YZ, Bayindir F. Effect of Water Storage and Additional Polymerization on the Color Parameters of Flowable Resin Composites. J Contemp Dent Pract 2013;14(6):1109-1114.

RESEARCH ARTICLE

N Simhachalam Reddy, R Narendra, Sashi Deepth Reddy, CR Sashi Purna, M Chandra Shekar, S Balasubramanyam

A Comparative Evaluation of Impact Strength of Conventionally Heat Cured and High Impact Heat Cured Polymethyl Methacrylate Denture Base Resins: An in vitro Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:7] [Pages No:1115 - 1121]

PDF  |  DOI: 10.5005/jp-journals-10024-1461  |  Open Access |  How to cite  | 

Abstract

Aim

To evaluate the impact strength valves of certain brands of commercially available denture base resins and suggest their suitability.

Materials and methods

The denture bases we made using polymethyl methacrylates of acrylic resin family because they have excellent physical properties, simple to process and easy to reline and rebase. Six commercial brands of polymethyl methacrylate, namely Stellon (DPI-India), Acralyn-H (Asian Acrylate, India), Trevalon (Dentsply-England), Lucitone 199 (Dentsply/ York division), Acralyn-H (Super Unbreakable), Trevalon HI (Dentsply, Detray division, England) were tested by breaking them using Analog Pendulum (ASTM D 256).

Results

From the entire study the maximum impact strength was reported for Acralyn-H super unbreakable (Asian Acrylates, India) 62.19 joules.

Conclusion

All the analysis led to conclusion that there is basic change in material composition within and among the different groups of denture base resins.

Clinical implications

The complete dentures made using denture base resins with high impact strength valves (e.g. Acralyn-H super unbreakable) will be more durable and can be used by the patient for considerable period of time, i.e. beyond 4 to 5 years.

How to cite this article

Narendra R, Reddy NS, Reddy SD, Purna CRS, Shekar MC, Balasubramanyam S. A Comparative Evaluation of Impact Strength of Conventionally Heat Cured and High Impact Heat Cured Polymethyl Metharylate Denture Base Resins: An in vitro Study. J Contemp Dent Pract 2013;14(6): 1115-1121.

RESEARCH ARTICLE

A Berberi, G Tehini, Z Tabaja, A Kobaissi, K Hamze, K Rifai, M Ezzedine, B Badran, A Chokr

Determination of Inner Implant's Volumes: A Pilot Study for Microleakage Quantification by Stereomicroscopy and Spectrophotometry

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:9] [Pages No:1122 - 1130]

PDF  |  DOI: 10.5005/jp-journals-10024-1462  |  Open Access |  How to cite  | 

Abstract

Aim

Microleakage quantification of fluids and microorganisms through the connections of different implant parts seems to be sparse. Moreover, no data exist regarding the determination of the volumes of inner parts of dental implant systems.

This study aims to determine the volumes of inner parts of three dental implant systems with the same interface and to evaluate the microleakage phenomenon.

Materials and methods

Three implant system sets (Euroteknika ®, Astra Tech® and Implantium®) were used in this study. Implants were inoculated with safranin, brain heart infusion and distilled water. After inoculation and assembly of the different parts, different inner volumes (V1, V2, V3, V4, V5 and V6) were measured and, the surfaces of the micro gaps were observed through a stereomicroscope. Implants containing safranin were immersed in vials containing distilled water. Samples then were taken to determine optical density using a spectrophotometer.

Results

Regardless the used substance, volumes of the 3-implant systems are different. Although volumes V1, V2, V3 and V5 appeared to be constant within the same system regardless the used substance, volumes V4 and V6 were not.

Conclusion

The determination of the volumes and the evaluation of leaked substance using stereomicroscopic and spectrophotometric methods showed the accuracy of these methods and the importance of their use in the study of microleakage.

Clinical significance

Leakage is an important factor for chronic inflammatory infiltration and marginal bone resorption. Studies have shown fluid and bacterial leakage into abutmentimplant (A-I) assemblies of certain implants with ‘closely locked’ abutments and the creation of a constant bacterial reservoir in the empty space found between the implant and the abutment.

How to cite this article

Berberi A, Tehini G, Tabaja Z, Kobaissi A, Hamze K, Rifai K, Ezzedine M, Badran B, Chokr A. Determination of Inner Implant's Volumes: A Pilot Study for Microleakage Quantification by Stereomicroscopy and Spectrophotometry. J Contemp Dent Pract 2013;14(6):1122-1130.

RESEARCH ARTICLE

B Madan Mohan Reddy, M Himabindu, B Indira Padmaja, M Sunil, N Raja Reddy

Palatal Vault Depth Influence on the Flexural Strength of Two Heat Cure Acrylic Denture Base Resins: An in vitro Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1131 - 1136]

PDF  |  DOI: 10.5005/jp-journals-10024-1463  |  Open Access |  How to cite  | 

Abstract

Clinical implications

Palatal vault depth significantly affected the flexural strength of heat cure resin. The most frequent mechanical failure of heat cure resin is fracture especially at the midline. The denture bases fabricated using high impact heat cure resin had best flexural strength than the denture bases fabricated using regular heat cure resin which reduced the fractures.

How to cite this article

Reddy BMM, Himabindu M, Padmaja BI, Sunil M, Reddy NR. Palatal Vault Depth Influence on the Flexural Strength of Two Heat Cure Acrylic Denture Base Resins: An in vitro Study. J Contemp Dent Pract 2013;14(6):1131-1136.

RESEARCH ARTICLE

Hideaki Kyoizumi, Junji Yamada, Toshimitsu Suzuki, Masafumi Kanehira, Werner J Finger, Keiichi Sasaki

Effects of Toothbrush Hardness on in vitro Wear and Roughness of Composite Resins

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:8] [Pages No:1137 - 1144]

PDF  |  DOI: 10.5005/jp-journals-10024-1464  |  Open Access |  How to cite  | 

Abstract

Aim

To investigate and compare the effects of toothbrushes with different hardness on abrasion and surface roughness of composite resins.

Materials and methods

Toothbrushes (DENT. EX Slimhead II 33, Lion Dental Products Co. Ltd., Tokyo, Japan) marked as soft, medium and hard, were used to brush 10 beam-shaped specimens of each of three composites resins (Venus [VEN], Venus Diamond [VED] and Venus Pearl [VEP]; HeraeusKulzer) with standardized calcium carbonate slurry in a multistation testing machine (2N load, 60 Hz). After each of five cycles with 10k brushing strokes the wear depth and surface roughness of the specimens were determined. After completion of 50k strokes representative samples were inspected by SEM. Data were treated with ANOVA and regression analyses (p < 0.05).

Results

Abrasion of the composite resins increased linearly with increasing number of brushing cycles (r2 > 0.9). Highest wear was recorded for VEN, lowest for VED. Hard brushes produced significantly higher wear on VEN and VEP, whereas no difference in wear by toothbrush type was detected for VED. Significantly highest surface roughness was found on VED specimens (Ra > 1.5 μm), the lowest one on VEN (Ra < 0.3 μm). VEN specimens showed increased numbers of pinhole defects when brushed with hard toothbrushes, surfaces of VEP were uniformly abraded without level differences between the prepolymerized fillers and the glass filler-loaded matrix, VED showed large glass fillers protruding over the main filler-loaded matrix portion under each condition.

Conclusion

Abrasion and surface roughness of composite resins produced by toothbrushing with dentifrice depend mainly on the type of restorative resin. Hardness grades of toothbrushes have minor effects only on abrasion and surface roughness of composite resins. No relationship was found between abrasion and surface roughness.

Clinical significance

The grade of the toothbrush used has minor effect on wear, texture and roughness of the composite resin.

How to cite this article

Kyoizumi H, Yamada J, Suzuki T, Kanehira M, Finger WJ, Sasaki K. Effects of Toothbrush Hardness on in vitro Wear and Roughness of Composite Resins. J Contemp Dent Pract 2013;14(6):1137-1144.

RESEARCH ARTICLE

Gerald Ikenna Isiekwe, Kehinde Adesola Umeizudike, Patricia Omowunmi Ayanbadejo, Theophilus Ifeanyichukwu Umeizudike, Kofoworola Olaide Savage

Relevance of Routine Blood Pressure Assessment among Dental Patients in Lagos, Nigeria

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1145 - 1150]

PDF  |  DOI: 10.5005/jp-journals-10024-1465  |  Open Access |  How to cite  | 

Abstract

Aim

To determine the relevance of routine blood pressure (BP) measurement in patients attending the dental clinic.

Materials and methods

This was a retrospective survey of patients who attended the dental clinic in the Preventive Dentistry Department of a tertiary Hospital in Lagos, Nigeria over an eighteen month period. Data retrieved from the patient's hospital records included age, sex, BP and history of hypertension. Data was analyzed using Epi info 2011 package. p-value <0.05 was considered statistically significant.

Results

A total of 1910 patients’ records were assessed. Females represented 53.4% (n = 1020) of the study population. The mean age was 37.1 ± 15.0 years (range 18-88 years). The prevalence of hypertension was 39.9% (n = 763). Hypertension was stage 1 in 25.5%, stage 2 in 9.8% and severe in 4.6% of the dental patients. Past medical history of hypertension was obtained for 952 patients (49.8%). Of the 763 patients with high blood pressure, 14.8% had a known history of hypertension, while 42.1% were previously undiagnosed (p < 0.0001). Systolic and diastolic BP increased with increasing age (p < 0.05) and was significantly higher in males than females (p < 0.05).

Conclusion

The high prevalence of hypertension noted among the study population with its potential consequence during dental procedures makes the measurement of blood pressure a valuable assessment in a dental clinic.

Clinical significance

The high prevalence of hypertension particularly the previously undiagnosed cases among the dental patients highlights the relevance of routine blood pressure assessment prior to dental procedures in contemporary dental practice, so as to minimize the potential complications that could occur.

How to cite this article

Umeizudike KA, Ayanbadejo PO, Umeizudike TI, Isiekwe GI, Savage KO. Relevance of Routine Blood Pressure Assessment among Dental Patients in Lagos, Nigeria. J Contemp Dent Pract 2013;14(6):1145-1150.

RESEARCH ARTICLE

RGK Shet, Rishi Dev Yadav, Srinivasa Rao, Ruchi Patel, Priyalatha Suvvati, Leena R Sadar

Prevalence of Temporomandibular Joint Dysfunction and Its Signs among the Partially Edentulous Patients in a Village of North Gujarat

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1151 - 1155]

PDF  |  DOI: 10.5005/jp-journals-10024-1466  |  Open Access |  How to cite  | 

Abstract

Aim

To investigate whether, the span of edentulousness, gender, number of quadrants involved, pathological migration and the type of kennedy's classification are related to the temporomandibular joint (TMJ) dysfunction signs.

Materials and methods

Clinical examination of 250 patients (males 99 and females 151) was done among the age group of 35 to 45 years. The patients were partially edentulous for 6 months or more and did not wear any kind of prosthesis.

Results

Among 250 subjects, females showed more TMJ dysfunction signs. Clicking sounds were present in 46.5%, mandibular deviation was present in 40% of individuals, TMJ tenderness was observed in 32% and masseter was involved in 32% of individual. Temporomandibular joint dysfunction signs in relation to pathologic migration of teeth show that clicking and mandibular deviation was present in 54.5 and 49.2% and among muscles masseter muscle tenderness 41.9% was more commonly present. Masseter muscle tenderness 64.1% was seen in individuals who were edentulous for more than 5 years.

Conclusion

Females subjects had a significantly higher prevalence of TMJ dysfunction signs then male subjects. As the span and time of edentulousness, the number of missing teeth and the number of quadrant involved increased, the signs of dysfunction became more prevalent. Among the TMJ dysfunction signs deviation and clicking sound were most frequently observed. The masseter muscle was most commonly affected and demonstrated muscle tenderness.

How to cite this article

Shet RGK, Rao S, Patel R, Suvvati P, Sadar LR, Yadav RD. Prevalence of Temporomandibular Joint Dysfunction and Its Signs among the Partially Edentulous Patients in a Village of North Gujarat. J Contemp Dent Pract 2013;14(6):1151-1155.

RESEARCH ARTICLE

Mohammad Hossein Toodehzaeim, Hossein Aghili, Elham Shariatifar, Mahboobe Dehghani

New Regression Equations for Mixed Dentition Space Analysis in an Iranian Population

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1156 - 1160]

PDF  |  DOI: 10.5005/jp-journals-10024-1467  |  Open Access |  How to cite  | 

Abstract

Aims

Prediction of the mesiodistal crown width of unerupted canines and premolars is an important aspect of mixed dentition analysis. The accuracy of Tanaka-Johnston equations, the most commonly method, is questionable when it is applied to different ethnic groups. In this study, we aimed to develop a new regression equation for this prediction in an Iranian population.

Materials and methods

The dental casts of 120 Iranian subjects with complete permanent dentition were selected. Mesiodistal crown widths of teeth were measured with digital caliper. In the first part of the study, the correlation and linear regression equations between four mandibular incisors and the canine-premolars segments of both arches were developed (modified Tanaka-Johnston equation). In the second part, as a new method, correlation and linear regression equations were developed between the sum of mandibular central incisorsmaxillary first molars and the canine-premolars segments.

Results

It was found that the correlation coefficients between the sum of mandibular central incisors-maxillary first molars and the maxillary and mandibular canine-premolars segments were higher (r = 0.66, 0.68 respectively) than the one between the four mandibular incisors and the canine-premolars segments (r = 0.58. 0.64).

Conclusion

New linear regression equations were derived. In this study, the sum of mandibular central incisors and maxillary first molars was better predictor for unerupted canines and premolars. This novel approach allows the prediction of width of unerupted canines and premolars to take place at earlier age.

Clinical significance

Using the new method, orthodontists could take advantage of mixed dentition analysis at earlier age. Moreover, to test the derived equations on a larger sample size and in other ethnicities is highly recommended.

How to cite this article

Toodehzaeim MH, Aghili H, Shariatifar E, Dehghani M. New Regression Equations for Mixed Dentition Space Analysis in an Iranian Population. J Contemp Dent Pract 2013;14(6):1156-1160.

RESEARCH ARTICLE

Sanket S Shah, Abhishek Apratim, Manish Sinha, Nidhi Chhaparia, Abu Abubakkar

Denture Hygiene Habits among Elderly Patients Wearing Complete Dentures

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:4] [Pages No:1161 - 1164]

PDF  |  DOI: 10.5005/jp-journals-10024-1468  |  Open Access |  How to cite  | 

Abstract

Objective

To determine the denture hygiene habits in complete denture patients according to their age and time of dentures.

Methods

In this study a self administered structured was developed to know the attitude of the patients regarding denture hygiene in the department of Prosthodontics. The total study sample consisted of 230 subjects including 124 (53.9%) males and 106 (46.1%) females. Data was analyzed using SPSS version 15.0 with chi-square test at p-value <0.05.

Results

Nearly half of the subjects clean their dentures daily once. Participants from the younger age group and who had been wearing dentures since 2 years maintain better frequency of cleaning. The majority of these subjects used water and brush for denture cleansing. After seeing the condition, half of the dentures were rated as good 50.3%, followed by fair and poor as 29.5 and 20.2% respectively.

Clinical significance

Poor condition of complete dentures seen in the population is mainly due to irregularly cleansing habits and also less usage of cleansing solutions. Dentists should give proper instructions regarding maintenance of denture hygiene.

How to cite this article

Apratim A, Shah SS, Sinha M, Agrawal M, Chhaparia N, Abubakkar A. Denture Hygiene Habits among Elderly Patients Wearing Complete Dentures. J Contemp Dent Pract 2013;14(6):1161-1164.

RESEARCH ARTICLE

Ajay Reddy, Sanjay Vasudevan, J Valli Renuka, D Sharon Sylvia, Radhika Challa, M Padmakanth

Evaluation of Gingival Inflammation in Patients using Ovulation Induction Drugs before and after Scaling

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:4] [Pages No:1165 - 1168]

PDF  |  DOI: 10.5005/jp-journals-10024-1469  |  Open Access |  How to cite  | 

Abstract

Objectives

To determine and correlate the effect of clomiphene citrate, Letrozole in women undergoing infertility treatment on the gingival inflammatory status.

Materials and Methods

The present study is a randomized controlled clinical trial which consisted of 26 women using CC for three menstrual cycles, 26 women using CC for more than three cycles, 26 women using Letrozole. All subjects were clinically examined for plaque levels (Plaque Index), gingival inflammation, bleeding on probing (Gingival Index, Sulcus Bleeding Index). Scaling was done to all patients and all periodontal parameters were reassessed 1 month after scaling. The results were compared with a control group of 26 women matched for age, educational status and professional level, and oral habits and who had never used ovulation drugs.

Results

Baseline scores of all the test groups showed higher amount of plaque levels and inflammation compared to control. (p < 0.05). After scaling a significant reduction in inflammation was observed in all the test groups along with the control group (p < 0.0001), but women using the drugs showed persistence of inflammation compared to control (p < 0.01).

Conclusion

It can be concluded from the present study that the presence of elevated levels of hormones due to the effect of ovulation induction drugs may be the reason for the gingival inflammation in test groups.

How to cite this article

Vasudevan S, Renuka JV, Sylvia DS, Challa R, Padmakanth M, Reddy A. Evaluation of Gingival Inflammation in Patients using Ovulation Induction Drugs before and after Scaling. J Contemp Dent Pract 2013;14(6):1165-1168.

RESEARCH ARTICLE

P Ratnakar, G Maheswar, G Ajay Kumar, S Malathi, K Sridevi, B Someshwar

Dental Prosthetic Status and Prosthetic Needs of the Institutionalized Elderly Living in Geriatric Homes in Hyderabad: A Pilot Study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:4] [Pages No:1169 - 1172]

PDF  |  DOI: 10.5005/jp-journals-10024-1470  |  Open Access |  How to cite  | 

Abstract

Introduction

To promote oral health among the elderly, we need to know their prosthetic status and prosthetic need. Hence, a survey of prosthetic status and need of elderly inmates of geriatric homes in Hyderabad was done.

Materials and methods

A cross-sectional study was undertaken, and 174 subjects aged 60 years and above were examined of which 103 were male and 71 were female (59.2% males and 40.8% females). The oral examination of the study subjects was carried out using basic oral health surveys, WHO 1997 criteria.

Results

Majority of the subjects, 73 (70.8%) males and 53 (74.6%) females had no prosthesis. Only 4.6% had complete dentures and 21.1% had removable partial dentures and 10.9% had single/multiple bridges. Need for any prosthesis was (83.5%) male and 63 (88.7%) female subjects and nearly 82. 8% subjects required one-unit prosthesis.

Conclusion

Dental prosthetic status of people living in geriatric homes is very poor and there is high unmet need for prosthetic care existed among the institutionalized elderly surveyed.

Key messages

A prevention based intervention programs to reduce early tooth loss is recommended and Oral health programs should be specially designed for these special group.

How to cite this article

Kumar GA, Maheswar G, Malathi S, Sridevi K, Ratnakar P, Someshwar B. Dental Prosthetic Status and Prosthetic Needs of the Institutionalized Elderly Living in Geriatric Homes in Hyderabad: A Pilot Study. J Contemp Dent Pract 2013;14(6):1169-1172.

RESEARCH ARTICLE

Mohammed Nadeem Ahmed Bijle, Vittal Das Shetty

The Relationship between prosthetic status and the Geriatric Oral Health Assessment Index in a Group of Institutionalized elderly of an Indian City: A cross-sectional study

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1173 - 1177]

PDF  |  DOI: 10.5005/jp-journals-10024-1471  |  Open Access |  How to cite  | 

Abstract

Aim

To assess and compare the quality of life and oral health status among institutionalized elderly in Pune.

Materials and methods

A cross-sectional, quantitative exploratory study was conducted in persons 60 years of age in an institutionalized elderly home. The GOHAI questionnaire was completed by a single examiner, who interviewed the patients in their local language. The oral examination was carried out according to WHO oral health survey using the DMFT-index, community periodontal index (CPI), periodontal loss of attachment (PLA), prosthetic use, and needs according to criteria established by the WHO by a calibrated examiner. Descriptive analysis was carried out using absolute and relative frequencies of the qualitative variables and means with respective standard deviations for the quantitative variables. The Student's t-test was applied to compare groups.

Results

Out of the total 110 individuals interviewed for the study, 64% were males and 36% were females. Individuals with up to 20 missing teeth and individuals with more than 20 missing teeth were 20 and 80% respectively. Based on the prosthetic need, 66% individuals needed replacement of teeth by dentures in one or both arches while 34% did not need any replacement by complete denture. The mean value for physical dimension was 5.40 whereas for psychosocial dimension, pain/discomfort and behavioral dimension were 8.02, 4.58 and 7.32.

Conclusion

The quality of life was found to be more favorable in individuals with less than 20 teeth missing. The quality of life among complete denture wearers in both the arches was better as compared to the quality of life among nondenture wearers. Prosthetic replacement by complete denture helps the individuals to maintain better oral health.

Clinical significance

The data obtained from the present study may serve as a reference point for comparisons of the magnitude of quality-of-life indicators relating to oral health.

How to cite this article

Shetty VD, Bijle MNA, Patil S. The Relationship between prosthetic status and the Geriatric Oral Health Assessment Index in a Group of Institutionalized elderly of an Indian City: A cross-sectional study. J Contemp Dent Pract 2013;14(6):1173-1177.

CASE REPORT

Manikkath Aparna, Mukund Gupta, Abhay Kamath, Monica Solomon, Keerthilatha Pai, Raghu Radhakrishnan

Calcifying Odontogenic Cyst: A Rare Report of A Nonneoplastic Variant associated with Cholesterol Granuloma

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1178 - 1182]

PDF  |  DOI: 10.5005/jp-journals-10024-1472  |  Open Access |  How to cite  | 

Abstract

Aim

To report a case of a non-neoplastic variant of calcifying odontogenic cyst (COC) with the lining epithelium showing ameloblastomatous proliferation and capsule exhibiting features of a cholesterol granuloma. The importance of delineating this histologic variant from unicystic ameloblastoma and the formation of cholesterol granuloma in this variant is discussed.

Background

Calcifying odontogenic cyst is a developmental jaw cyst, which presents itself as both the neoplastic and the non-neoplastic forms. The ameloblastomatous variant of COC is often mistaken for unicystic ameloblastoma and treated aggressively.

Case report

A 68-year-old female who presented with a cystic enlargement of the posterior mandible on the right side was suggestive of unicystic ameloblastoma based on radiography and initial biopsy report. Microscopic examination of the excision specimen, however, was fitting in favor of calcifying odontogenic cyst with ameloblastomatous proliferation.

Conclusion

Identifying the non-neoplastic ameloblastomatous variant of COC from a cystic ameloblastoma is crucial as the treatment of the two lesions vary considerably.

Clinical significance

This case emphasizes the need for thorough examination of the entire surgical specimen before arriving at an appropriate diagnosis.

How to cite this article

Aparna M, Gupta M, Sujir N, Kamath A, Solomon M, Pai K, Radhakrishnan R. Calcifying Odontogenic Cyst: A Rare Report of a Nonneoplastic Variant associated with Cholesterol Granuloma. J Contemp Dent Pract 2013;14(6):1178- 1182.

CASE REPORT

Prashant P Moogi, Reshma S Hegde, G Vinay Kumar, BR Prashant, Basanagouda Patil

Nonsurgical Management of Large Periapical Lesion in Mature and Immature Teeth using Different Calcium Hydroxide Formulations: Case Series

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:6] [Pages No:1183 - 1188]

PDF  |  DOI: 10.5005/jp-journals-10024-1473  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Kumar GV, Hegde RS, Moogi PP, Prashant BR, Patil B. Nonsurgical Management of Large Periapical Lesion in Mature and Immature Teeth using Different Calcium Hydroxide Formulations: Case Series. J Contemp Dent Pract 2013;14(6):1183-1188.

CASE REPORT

Anila Karunakaran, Rathy Ravindran, Mahesh Shenoy, Mohammed Arshad, MK Shruthi Laxmi

Primary Mucosal Melanoma: Report of Two Cases

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:4] [Pages No:1189 - 1192]

PDF  |  DOI: 10.5005/jp-journals-10024-1474  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Karunakaran A, Ravindran R, Shenoy M, Arshad M, Laxmi MKS. Primary Mucosal Melanoma: Report of Two Cases. J Contemp Dent Pract 2013;14(6):1189-1192.

CASE REPORT

Deepak Pandyan, N Nandakumar, Burhanuddin N Qayyumi

C-Arm Fluoroscopy: A Reliable Modality for Retrieval of Foreign Bodies in the Maxillofacial Region

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:4] [Pages No:1193 - 1196]

PDF  |  DOI: 10.5005/jp-journals-10024-1475  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Pandyan D, Nandakumar N, Qayyumi BN, Kumar S. C-Arm Fluoroscopy: A Reliable Modality for Retrieval of Foreign Bodies in the Maxillofacial Region. J Contemp Dent Pract 2013;14(6):1193-1196.

REVIEW ARTICLE

Alexandre Meireles Borba, Daniel Falbo Martins Souza, Mariana Aparecida Brozoski, Rafael Augusto Burim, Maria da Graça Naclério-Homem, Maria Cristina Zindel Deboni

Can the Use of Antibiotics interfere with the Success of Dental Osseointegrated Implants in Diabetic Patients?

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:5] [Pages No:1197 - 1201]

PDF  |  DOI: 10.5005/jp-journals-10024-1476  |  Open Access |  How to cite  | 

Abstract

Aim

The present review aims to discuss the last 10 years published data on the topic of the use of osseointegrated implants in diabetic subjects, particularly regarding the influence of antibiotics administration in the perioperative period.

Background

In the last decades, oral rehabilitation significantly has evolved particularly with the use of osseointegrated implants. Increased life expectation of population is reflecting in a greater number of diabetic patients who might require dental osseointegrated implants rehabilitation. Diabetes was considered for a long time as a contraindication for oral implant placement. In this context, the use of antibiotics is still a controversial factor when we correlate it to implant success rate.

Review results

Although 228 articles were initially selected for evaluation of proposed criteria, only 16 articles were considered valid. Among the 16 selected articles, only six articles represented clinical research that discussed the influence of the antibiotic in the success of osseointegration of dental implants in diabetic subjects. Five were retrospective studies and one a prospective research.

Conclusion

Data favors the use of antibiotics without significant side effects but clinical investigations of the need of prophylaxis antibiotic or therapeutic antibiotics are still scarce. The lack of adequate methodology is one of the main problems of the current articles. It is important to emphasize that studies should present detailed methodology in order to allow reproducibility.

Clinical significance

Permanent tooth loss is a pathological condition that affects millions of people worldwide. The possibility of successful treatment of edentulous areas through osseointegrated implants in those systemic compromised patients is a matter of scientific discussion. Although antimicrobial agents must be used rationally and carefully to avoid development of bacterial resistance, more studies are needed in order to support evidence regarding the influence of antibiotics in the success of dental implant surgery in diabetic patients.

How to cite this article

Borba AM, Souza DFM, Brozoski MA, Burim RA, da Graça Naclério-Homem M, Deboni MCZ. Can the Use of Antibiotics interfere with the Success of Dental Osseointegrated Implants in Diabetic Patients? J Contemp Dent Pract 2013;14(6):1197-1201.

REVIEW ARTICLE

DS Sanketh, N Amrutha

Microbial Flora in Oral Diseases

[Year:2013] [Month:November-December] [Volume:14] [Number:6] [Pages:7] [Pages No:1202 - 1208]

PDF  |  DOI: 10.5005/jp-journals-10024-1477  |  Open Access |  How to cite  | 

Abstract

How to cite this article

Patil S, Rao RS, Sanketh DS, Amrutha N. Microbial Flora in Oral Diseases. J Contemp Dent Pract 2013;14(6):1202-1208.

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