The Journal of Contemporary Dental Practice

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2005 | November | Volume 6 | Issue 4

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RESEARCH ARTICLE

Samer A. Bsoul, Geza T. Terezhalmy, Michaell A. Huber

Squamous Cell Carcinoma of the Oral Tissues: A Comprehensive Review for Oral Healthcare Providers

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:16] [Pages No:1 - 16]

   DOI: 10.5005/jcdp-6-4-1  |  Open Access |  How to cite  | 

Abstract

Citation

Bsoul SA, Huber MA, Terezhalmy GT. Squamous Cell Carcinoma of the Oral Tissues: A Comprehensive Review for Oral Healthcare Providers J Contemp Dent Pract 2005 November;(6)4:001-016.

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RESEARCH ARTICLE

Luis Guilherme Sensi, Fabiano Carlos Marson, Luiz Narciso Baratieri, Sylvio Monteiro Junior

Effect of Placement Techniques on the Marginal Adaptation of Class V Composite Restorations

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:9] [Pages No:17 - 25]

   DOI: 10.5005/jcdp-6-4-17  |  Open Access |  How to cite  | 

Abstract

Statement of the Problem

Several techniques are proposed for the restoration of Class V cavities but there is no agreement in the literature as to which technique is more effective.

Purpose

To evaluate the effect of different techniques of composite increment placement on the marginal adaptation of Class V restorations.

Methods and Materials

Twenty-four human molars were selected and prepared with standardized saucershaped cavity dimensions of 3.0 mm (occlusal-gingival), 2.0 mm (mesial-distal), and 2.0 mm (depth). The margins are in reference to the cemento-enamel junction with 1.5 mm being located on enamel and 1.5 mm on dentin. The cavities were randomly assigned into three groups (n=8) and restored with composites as follows: Group 1, the occlusal increment was placed and cured first followed by the gingival increment; Group 2, the gingival increment was placed and cured first followed by the occlusal increment; and Group 3, the cavities were restored with one bulk increment. Restorations were immediately finished and stored for 24 h in tap water. Specimens were subjected to thermocycling (1000 cycles, 5°C to 55°C, 30 s dwell time) and immersed in 0.5% basic fuchsin solution for 24 h in room temperature. After rinsing with running water, the restorations were sectioned longitudinally and enamel and dentin margins were evaluated and scored according to the microleakage on a 0-3 scale. Data were subjected to Kruskal-Wallis test at p<0.05.

Results

Median of microleakage scores for all evaluated groups was zero. No statistical difference was observed among the three groups both in enamel (p = 0.5929) and dentin (p = 0.3679) margins

Conclusion

The placement technique did not influence the marginal adaptation of moderate Class V restorations.

Clinical Significance

No differences on marginal adaptation were observed when restoring conservative Class V cavities using incremental or bulk placement techniques.

Citation

Sensi LG, Marson FC, Baratieri LN, Junior SM. Effect of Placement Techniques on the Marginal Adaptation of Class V Composite Restorations. J Contemp Dent Pract 2005 November;(6)4:017-025.

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RESEARCH ARTICLE

Arne F. Boeckler, Anke Stadler, Jürgen M. Setz

The Significance of Marginal Gap and Overextension Measurement in the Evaluation of the Fit of Complete Crowns

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:12] [Pages No:26 - 37]

   DOI: 10.5005/jcdp-6-4-26  |  Open Access |  How to cite  | 

Abstract

Introduction

An important criterion for the success of a crown is marginal fit. However, in the patient's mouth fit can only be evaluated by subjective methods. This study describes the correlation between objective marginal fit and its subjective evaluation by dentists and dental technicians.

Materials and Methods

Thirty human premolars and molars were randomly divided into six groups and prepared with a shoulder. For each of the six groups, complete crowns were made of different alloys and technologies (casting: AuAgCu, AuPdPt, PdAgAu, CoCrMo, and Ti; milling: Ti). The crowns were cemented with provisional cement. Ten dentists and 10 technicians were asked to evaluate the fit of the crowns with a new dental explorer. The crowns were then cleaned and cemented with a zinc-oxide-phosphate-cement. The marginal gap and a possible overextended margin of the crowns were examined under a special 4x light microscope with a magnification level of 560 X. The means of the gaps and the overextended margins were calculated for each group. Significances were detected by analysis of variance (ANOVA) and the post-hoctest (Bonferroni, p<0.05). Correlations between objective measuring and subjective evaluation were evaluated using the Pearson test. The influence of the measured values on the subjective evaluation was determined by regression analyses.

Results

Crowns made from different alloys and technologies showed partly significantly (p<0.05) different marginal gaps (mean ranging from 35ìm to 92ìm) and significantly (p<0.05) different overextended margins (mean ranging from 40ìm to 149ìm). There were significant correlations (p<0.05) between subjective findings and objective data. Significant correlations (p<0.01) were also found between the subjective findings of dentists and technicians. Compared to the marginal gap, only the overextended margin had a significant influence (p=0.00) on the subjective evaluations of the clinicians.

Conclusion

Crowns from different alloys and technologies showed differences in marginal fit. Marginal gap and the overextension of the crowns significantly correlated with the subjective evaluation of their fit by dentists and dental technicians. For the decision of the clinicians, whether a crown is acceptable, overextension was more important than marginal gap.

Citation

Boeckler AF, Stadler A, Setz JM. The Significance of Marginal Gap and Overextension Measurement in the Evaluation of the Fit of Complete Crowns. J Contemp Dent Pract 2005 November; (6)4:026-037.

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RESEARCH ARTICLE

Yousra Hussain Al-Jazairy, Ahmed A. El-Hejazi

The Color Differences Between Different Thicknesses of Resin Veneered Over Amalgam

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:38 - 45]

   DOI: 10.5005/jcdp-6-4-38  |  Open Access |  How to cite  | 

Abstract

Statement of Problem

Composites and compomers are popular in dental practice. However, little is known about their esthetic appearance as veneering restorative materials over amalgam restorations.

Purpose

This in vitro study was designed to assess the color differences of composite and compomer restorative materials, placed in thicknesses of 1 mm and 2 mm over amalgam.

Material and Methods

Thirty six cylindrical Teflon molds were filled with amalgam (13 mm diameter, 2 mm thickness) and stored at 37°C and 100% relative humidity for 7 days. Nine veneers (for each thickness of 1 and 2 mm) were fabricated from four types of tooth-colored restorative material, Dyract AP (DYR), Compoglass F (COMP), Herculite XRV (XRV), and Vitalecense (VIT), over amalgam specimens using Teflon-split molds and following the manufacturers’ instructions. A spectrophotometer was used to measure the color difference ΔE* between the two thicknesses.

Results

Color difference ΔE* values for 1 mm thickness veneers [XRV (2.52), Comp (5.46), VIT (6.73), and DYR (6.88)] were statistically significantly higher than the 2 mm thickness [XRV (1.32), Comp (3.24), VIT (4.89), and DYR (4.83)]. Although the XRV material had the lowest ΔE* values, no statistically significant difference was found between the two thicknesses. The color measurements at L*, a*, and b* showed most materials became darker in color at either thickness.

Conclusion

The thicker veneer specimens were found to be closer in color to the controls than the thinner specimens. Only XRV had color differences (ΔE*) small enough to be considered clinically acceptable (2.52 and 1.32 at 1 mm and 2 mm, respectively).

Clinical Implications

In this in vitro study the color of XRV was affected the least when veneered on amalgam. Opaquers may be needed to be used with thinner veneers to minimize the effect of amalgam background.

Citation

Al-Jazairy YH, El-Hejazi AA. The Color Differences Between Different Thicknesses of Resin Veneered Over Amalgam. J Contemp Dent Pract 2005 November;(6)4:038-045.

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RESEARCH ARTICLE

Mohammad Abdollahi, Foreshteh Mashayekhi, Farzaneh Agha-hoseini, Ali Rezaie, Mohammad J. Zamani, Reza Khorasani

Alteration of Cyclic Nucleotides Levels and Oxidative Stress in Saliva of Human Subjects with Periodontitis

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:46 - 53]

   DOI: 10.5005/jcdp-6-4-46  |  Open Access |  How to cite  | 

Abstract

Citation

Mashayekhi F, Agha-hosseini F, Rezaie A, Zamani MJ, Khorasani R, Abdollahi M. Alteration of Cyclic Nucleotides Levels and Oxidative Stress in Saliva of Human Subjects with Periodontitis. J Contemp Dent Pract 2005 November;(6)4:046-053.

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RESEARCH ARTICLE

Mark David Snyder, Kyle Douglas Hogg

Load-to-fracture Value of Different All-ceramic Crown Systems

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:10] [Pages No:54 - 63]

   DOI: 10.5005/jcdp-6-4-54  |  Open Access |  How to cite  | 

Abstract

Objectives

The purpose was to investigate the potential difference in the load-to-fracture values of several all-ceramic crown systems. Five different coping-reinforced all-ceramic crown systems were selected. Ten crowns from each system were fabricated and luted to standardized titanium dies.

Methods

The study consisted of five groups of ten samples each, all luted using G.C. Link Max resin adhesive cement. Group A: IPS Eris®, Group B: Cerac® In-lab Alumina coping, Group C: Cerac® In- lab Zirconia coping, Group D: Procera® AllCeram Alumina coping, and Group E: Procera® Zirconia coping. Following cementation, the samples were placed under a 5 Kg static load for 10 minutes insuring proper seating and stored in 100% humidity for one week. All samples were visually inspected prior to testing and were loaded to fracture at the rate of 0.5 mm/min using a universal-testing machine.

Results

Group A = 321.49 KgF ± 113.69 (S.D.), Group B = 288.63 ± 102.82 (S.D.), Group C = 266.58 ± 69.17 (S.D.), Group D = 295.49 ± 80.54 (S.D.), and Group E = 420.37 ± 82.45 (S.D.). The data were analyzed using an unpaired t-test; this indicated a statistical difference between group E and all of the others (P-value ≤0.039).

Conclusions

We concluded under these conditions, the Procera® Zirconia crown system has significant higher load-to-fracture value than several other all-ceramic crown systems.

Citation

Snyder MD, Hogg KD. Load-to-fracture Value of Different All-ceramic Crown Systems. J Contemp Dent Pract 2005 November;(6)4:054-063.

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RESEARCH ARTICLE

Wael M. Al-Omari

Perceived Sources of Stress within a Dental Educational Environment

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:11] [Pages No:64 - 74]

   DOI: 10.5005/jcdp-6-4-64  |  Open Access |  How to cite  | 

Abstract

Citation

Al-Omari WM. Perceived Sources of Stress within a Dental Educational Environment. J Contemp Dent Pract 2005 November;(6)4:064-074.

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RESEARCH ARTICLE

Olawunmi A. Fatusi, Eyitope O. Ogunbodede, Anthony Akintomide, Kikelomo Kolawole, Adesuyi Ajayi

Oral Health Status in a Population of Nigerian Diabetics

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:10] [Pages No:75 - 84]

   DOI: 10.5005/jcdp-6-4-75  |  Open Access |  How to cite  | 

Abstract

Citation

Ogunbodede EO, Fatusi OA, Akintomide A, Kolawole K, Ajayi A. Oral Health Status in a Population of Nigerian Diabetics. J Contemp Dent Pract 2005 November;(6)4:075-084.

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RESEARCH ARTICLE

A.R. Daneshkazemi, A. Davari

Assessment of DMFT and Enamel Hypoplasia Among Junior High School Children in Iran

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:85 - 92]

   DOI: 10.5005/jcdp-6-4-85  |  Open Access |  How to cite  | 

Abstract

Aim

The main purpose of this study was to assess the prevalence and distribution of decayed, missing, and filled teeth (DMFT) and enamel hypoplasia in 12-year old students in junior high school in Iran.

Materials and Methods

This descriptive study was carried out in 2001 on 1,223 12-year old students, which were randomly selected in Yazd and Hadi-Shahr, Iran. A questionnaire was designed to record the status of the teeth along with the occupational and educational levels of parents. Data was analyzed using SPSS software, the Chi-square test, and analysis of variance (ANOVA).

Results

The mean DMFT score was 1.8 ± 1.75 and 28.6% of the students were caries-free. There was no significant relationship between DMFT and the rate of dental caries with parents’ education and occupation. The percentage of enamel hypoplasia was 32.7%. No statistically significant relationships were found between hypoplasia and DMFT with regard to gender. The relationship between enamel hypoplasia with DMFT score and dental caries was statistically significant.

Conclusion

In the present study findings for DMFT scores in 12-year old junior high school children are higher than global standards according to the World Health Organization (WHO) references for the year 2000. There was a strong association between enamel hypoplasia and dental caries, and this subject suggests early diagnosis of enamel defects, health education programs, and suitable treatments should be emphasized in junior high school-aged children.

Citation

Daneshkazemi AR, Davari A. Assessment of DMFT and Enamel Hypoplasia Among Junior High School Children in Iran. J Contemp Dent Pract 2005 November;(6)4:085-092.

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RESEARCH ARTICLE

Thomas R. Meng, Mark A. Latta

Physical Properties of Four Acrylic Denture Base Resisns

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:93 - 100]

   DOI: 10.5005/jcdp-6-4-93  |  Open Access |  How to cite  | 

Abstract

Citation

Meng TR, Latta MA. Physical Properties of Four Acrylic Denture Base Resins. J Contemp Dent Pract 2005 November;(6)4:093-100.

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RESEARCH ARTICLE

Sudeshni Naidoo, Usuf Chikte, Ria Laubscher, Carl Lombard

Fetal Alcohol Syndrome: Anthropometric and Oral Health Status

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:15] [Pages No:101 - 115]

   DOI: 10.5005/jcdp-6-4-101  |  Open Access |  How to cite  | 

Abstract

Citation

Naidoo S, Chikte U, Laubscher R, Lombard C. Fetal Alcohol Syndrome: Anthropometric and Oral Health Status. J Contemp Dent Pract 2005 November;(6)4:101-115.

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RESEARCH ARTICLE

Murat Maden, Güliz Görgül, A. Cemal Tinaz, Bağdagül H. Kivanç, Özgür like Atasoy Ulusoy

Effects of Nd: YAG Laser Irradiation on the Adaptation of Composite Resins to Root Dentin

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:116 - 123]

   DOI: 10.5005/jcdp-6-4-116  |  Open Access |  How to cite  | 

Abstract

Citation

Görgül G, Kivanç BH, Maden M, Ulsoy ÖLA, Tinaz AC. Effects of Nd: YAG Laser Irradiation on the Adaptation of Composite Resins to Root Dentin. J Contemp Dent Pract 2005 November;(6)4:116-123.

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RESEARCH ARTICLE

Karl F. Woodmansey

The Prevalence of Dental Caries among International Students at U.S. Universities

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:12] [Pages No:124 - 135]

   DOI: 10.5005/jcdp-6-4-124  |  Open Access |  How to cite  | 

Abstract

Citation

Woodmansey KF. The Prevalence of Dental Caries among International Students at U.S. Universities. J Contemp Dent Pract 2005 November;(6)4:124-135.

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RESEARCH ARTICLE

Adeleke Oke Oginni

Failures Related to Crowns and Fixed Partial Dentures Fabricated in a Nigerian Dental School

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:136 - 143]

   DOI: 10.5005/jcdp-6-4-136  |  Open Access |  How to cite  | 

Abstract

Citation

Oginni AO. Failures Related to Crowns and Fixed Partial Dentures Fabricated in a Nigerian Dental School. J Contemp Dent Pract 2005 November;(6)4:136-143.

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RESEARCH ARTICLE

Peter L. Jacobsen, Elisa M. Chávez

Clinical Management of the Dental Patient Taking Multiple Drugs

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:144 - 151]

   DOI: 10.5005/jcdp-6-4-144  |  Open Access |  How to cite  | 

Abstract

Citation

Jacobsen PL, Chávez EM. Clinical Management of the Dental Patient Taking Multiple Drugs. J Contemp Dent Pract 2005 November;(6)4:144-151.

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RESEARCH ARTICLE

Sule Kavaloglu Cildir, Kemal Sencift, Vakur Olgac, Nuket Sandalli

Delayed Eruption of a Mandibular Primary Cuspid Associated with Compound Odontoma

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:152 - 159]

   DOI: 10.5005/jcdp-6-4-152  |  Open Access |  How to cite  | 

Abstract

Citation

Cildir SK, Sencift K, Olgac V, Sandalli N. Delayed Eruption of a Mandibular Primary Cuspid Associated with Compound Odontoma. J Contemp Dent Pract 2005 November;(6)4:152-159.

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RESEARCH ARTICLE

Krishnanjaneya Pathakota Reddy, Dilip Gopinath Nayak, Ashita Sadananda Uppoor A

Retention of Maxillary Molars with Class III Furcation Involvement Utilizing Glass-Ionomer: Two Case Reports

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:8] [Pages No:160 - 167]

   DOI: 10.5005/jcdp-6-4-160  |  Open Access |  How to cite  | 

Abstract

Citation

Reddy KP, Nayak DG, Uppoor A AS. Retention of Maxillary Molars with Class III Furcation Involvement Utilizing Glass-Ionomer: Two Case Reports. J Contemp Dent Pract 2005 November; (6)4:160-167.

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RESEARCH ARTICLE

Erminia Coccia, Giorgio Rappelli

Fiber-reinforced Composite Fixed Partial Denture to Restore Missing Posterior Teeth: A Case Report

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:10] [Pages No:168 - 177]

   DOI: 10.5005/jcdp-6-4-168  |  Open Access |  How to cite  | 

Abstract

Citation

Rappelli G, Coccia E. Fiber-reinforced Composite Fixed Partial Denture to Restore Missing Posterior Teeth: A Case Report. J Contemp Dent Pract 2005 November;(6)4:168-177.

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RESEARCH ARTICLE

Joan M. Davis

Tobacco Cessation for the Dental Team: A Practical Guide Part II: Evidence-based Interventions

[Year:2005] [Month:November] [Volume:6] [Number:4] [Pages:9] [Pages No:178 - 186]

   DOI: 10.5005/jcdp-6-4-178  |  Open Access |  How to cite  | 

Abstract

Citation

Davis JM. Tobacco Cessation for the Dental Team: A Practical Guide Part II: Evidence-based Interventions. J Contemp Dent Pract 2005 November;(6)4:178-186.

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