The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 20 , ISSUE 10 ( October, 2019 ) > List of Articles

ORIGINAL RESEARCH

Evaluation of Impact Strength of Dental Acrylic Resins by Incorporation of TiO2 Nanoparticles Using Two Different Processing Techniques

Chippalapally Arun Kumar, C Ravi Kumar, Kanchiradasu Vamshikiran, Gaddam Deepthi, G Naveen Kumar, M Akhilesh

Keywords : Acrylic denture base, Impact strength, Microwave, TiO2 nanofillers

Citation Information : Kumar CA, Kumar CR, Vamshikiran K, Deepthi G, Kumar GN, Akhilesh M. Evaluation of Impact Strength of Dental Acrylic Resins by Incorporation of TiO2 Nanoparticles Using Two Different Processing Techniques. J Contemp Dent Pract 2019; 20 (10):1184-1189.

DOI: 10.5005/jp-journals-10024-2655

License: CC BY-NC 4.0

Published Online: 01-10-2019

Copyright Statement:  Copyright © 2019; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim: The present study aims to evaluate the impact strength of PMMA incorporated with TiO2 nanoparticles by two different processing techniques i.e. water bath and microwave processing techniques. Materials and methods: A total of 80 samples made of PMMA were divided into four groups. Each group includes 20 samples with group I and II comprising of samples made of normal acrylic resin and acrylic resin reinforced with 1 wt% TiO2 nanoparticles processed with conventional water bath technique respectively, groups III and IV include normal acrylic resin and acrylic resin reinforced with 1 wt% TiO2 processed using microwave technique respectively. The specimens were tested for impact strength using IZOD pendulum impact tester. The impact energy values obtained were analyzed statistically. Results: The results through one-way ANOVA showed a high mean impact strength with group IV samples (23.13) and lowest with respect to group I (19.42) with highest statistical significance (p < 0.001). A post hoc Tukey test intergroup analysis showed a statistically significant difference between group I and other groups, whereas there was no statistical significance associated with other intergroup comparisons. Conclusion: PMMA with its current drawbacks in the physical and mechanical properties requires modifications to make it an ideal denture base material. The current investigation evaluates that a high mean impact strength with samples made of PMMA incorporated with TiO2 nanoparticles processed by microwave technique was obtained when compared with normal acrylic resins processed by water bath technique. Clinical significance: The methodology of current study can be used while processing of denture bases for patients to evaluate the effect of oral environment on inclusion of TiO2 nanoparticles with microwave processing in a clinical setup. This could help in reducing the amount of fractures associated with heavy load masticatory stresses and improving the mechanical properties in denture bases.


PDF Share
  1. Asli HN, Moradian S, et al. Comparison of transverse strength of three different types of heat cured resin acrylics. Biosci Biotech Bioch Communi 2017 Apr 1;10(2):248–251. DOI: 10.21786/bbrc/10.2/42.
  2. Gurbaz O, Unalan F, et al. Composition of transverse strength of six acrylic denture resins. OHDMBSC 2010;9(1):21–24.
  3. Salman TA, Khalaf HA. The influence of adding of modified ZrO2-TiO2 nanoparticles on certain physical and mechanical properties of heat polymerized acrylic resin. J Baghdad College of Dentistry 2015 Sep;325(2221):1–5.
  4. Aydinc C, Yilmaz H, et al. Effect of glass fiber reinforcement on the flexural strength of different denture base resins. Quintessence Int 2002;33:457–462.
  5. Cappacio G, Ward H. Properties of ultra-high modulus polyethylene fibre. J Nat Phys Sci 1973;243:143–145.
  6. Goldberg AJ, Burnstone CJ. The use of continuous fibre reinforcement in dentistry. Dent Mater 1992;8:197–202. DOI: 10.1016/0109-5641(92)90083-O.
  7. Mowade TK, Dange SP. Effect of fiber reinforcement on impact strength of heat polymerized polymethyl methacrylate denture base resin: in vitro study and SEM analysis. J Adv Prosthodont 2012;4:30–36. DOI: 10.4047/jap.2012.4.1.30.
  8. Gad MM, Fouda SM, et al. PMMA denture base material enhancement: a review of fiber, filler, and nanofiller addition. Int J Nanomedicine 2017;12:3801. DOI: 10.2147/IJN.S130722.
  9. Saravana KR, Vijayalakshmi R. Nanotechnology in dentistry. Ind J Dent Res 2006;17:62–65. DOI: 10.4103/0970-9290.29890.
  10. Kong LX, Peng Z, et al. Nanotechnology and its role in the management of periodontal diseases. Periodontol 2000 2006;40: 184–196. DOI: 10.1111/j.1600-0757.2005.00143.x.
  11. Ozak ST, Ozkan P. Nanotechnology and dentistry. Eur J Dent 2013 Jan;7(1):145.
  12. Bhardwaj A, Bhardwaj A, et al. Nanotechnology in dentistry: Present and future. J Int Oral Health 2014 Feb;6(1):121.
  13. Chintalacheruvu VK, Balraj RU, et al. Evaluation of three different processing techniques in the fabrication of complete dentures. J Int Soc Prev Community Dent 2017 Jun;7(1):S18–S23. DOI: 10.4103/jispcd.JISPCD_102_17.
  14. Palaskar J, Mittal S, et al. Comparative evaluation of surface porosities in conventional heat polymerized acrylic resin cured by water bath and microwave energy with microwavable acrylic resin cured by microwave energy. Contemp Clin Dent 2013;4(2):147–151. DOI: 10.4103/0976-237X.114844.
  15. Kimura H, Teraoka F, et al. Applications of microwave for dental technique: dough forming and curing curing of acrylic resins. J Japan Soc Dent Mat Dev 1983;2:253–257.
  16. Nazirkar G, Bhanushali S, et al. Effect of anatase titanium dioxide nanoparticles on the flexural strength of heat cured poly methyl methacrylate resins: An in vitro Study. J Indian Prosthodont Soc 2014 Dec 1;14(1):144–149. DOI: 10.1007/s13191-014-0385-8.
  17. Johnston EP, Nicholls JI, et al. Flexure fatigue of 10 commonly used denture base resins. J Prosthet Dent 1981;46:478–483. DOI: 10.1016/0022-3913(81)90232-8.
  18. Kim S-H, Watts DC. The effect of reinforcement with woven Eglassfibers on the impact strength of complete dentures fabricated with high-impact acrylic resin. J Prosthet Dent 2004;91:274–280. DOI: 10.1016/j.prosdent.2003.12.023.
  19. Aziz HK. TiO2-Nanofillers Effects on Some Properties of Highly-Impact Resin Using Different Processing Techniques. Open Dent J 2018;12:202. DOI: 10.2174/1874210601812010202.
  20. Shirkavand S, Moslehifard E. Effect of TiO2 nanoparticles on tensile strength of dental acrylic resins. J Dent Res Dent Clin Dent Prospects 2014;8(4):197–203. DOI: 10.5681/joddd.2014.036.
  21. Ahmed MA, El-Shennawy M, et al. Effect of titanium dioxide nano particles incorporation on mechanical and physical properties on two different types of acrylic resin denture base. World Journal of Nano Science and Engineering 2016 Jul 5;6(03):111. DOI: 10.4236/wjnse.2016.63011.
  22. Ghahremani L, Shirkavand S, et al. Tensile strength and impact strength of color modified acrylic resin reinforced with titanium dioxide nanoparticles. J Clin Exp Dent 2017 May;9(5):e661. DOI: 10.4317/jced.53620.
  23. Acosta-Torres LS, López-Marín LM, et al. Biocompatible Metal-Oxide Nanoparticles: Nanotechnology Improvement of Conventional Prosthetic Acrylic Resins. J Nanomater 2011;2011:1–8. DOI: 10.1155/2011/941561.
  24. Jadhav R, Bhide S, et al. Assessment of the impact strength of the denture base resin polymerized by various processing techniques. Indian J Dent Res 2013;24(1):19–25. DOI: 10.4103/0970-9290.114926.
  25. Rizzatti-Barbosa CM, Cury AA, et al. The use of microwave energy in dental prosthesis. In Advances in Induction and Microwave Heating of Mineral and Organic Materials, Intech Open; 2011 Feb 14.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.