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VOLUME 19 , ISSUE 10 ( 2018 ) > List of Articles

ORIGINAL RESEARCH

Comparison of Flexural Strength and Surface Roughness of two Different Flexible and Heat Cure Denture Base Material: An in Vitro Study

AV Rajanikanth, Vinisha Pandey, Reshu Singh, Pawanjeet S Chawla, Eisha Shaw, Ankit Mehrotra

Keywords : Flexible denture base, Flexural strength, Surface roughness

Citation Information : Rajanikanth A, Pandey V, Singh R, Chawla PS, Shaw E, Mehrotra A. Comparison of Flexural Strength and Surface Roughness of two Different Flexible and Heat Cure Denture Base Material: An in Vitro Study. J Contemp Dent Pract 2018; 19 (10):1214-1220.

DOI: 10.5005/jp-journals-10024-2407

License: CC BY-NC 3.0

Published Online: 00-10-2018

Copyright Statement:  Copyright © 2018; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim: To Compare and Evaluate the Flexural Strength and Surface Roughness of Lucitone-FRS, Valplast (Flexible Denture Base Materials) and Trevalon (Heat Cure Denture Base Material). Materials and Methods: Three stainless steel master dies of dimension 65 x 20 x 3 mm were fabricated and were invested in standard metal denture flask. A total of 60 specimens were fabricated with 20 specimens of each type of denture base material. Fabrication of a Heat Cure Acrylic Denture Base Resin Specimen was Done Followed by Fabrication of Flexible Denture Base Resins Specimen. In the same manner, samples were fabricated for Lucitone–FRS, and Valplast. These specimens were further divided into two subsets; containing 10 specimens each from each group. In one subset, Flexural Strength was Measured while in the other subset, Surface Roughness was measured. The Surface Roughness values were measured using a surface testing machine Mitutoyo-SJSeries 201 (Japan). The flexural strength of specimens was measured using a 3-point bending test device on universal testing machine. All the results were compiled and Analyzed by SPSS software. Results: Flexural strength was found maximum in the VALPLAST and minimum in LUCITONE. Surface Roughness Test was done on total 10 samples of each material, i.e. Lucitone- FRS, Valplast and Trevalon. Results for Surface Roughness Test are Valplast has maximum Surface-Roughness followed by Trevalon and minimum in Lucitone-FRS on both polished and unpolished surface. Conclusion: Trevalon can be ideal in cross-arch stabilization cases and Valplast and Lucitone FRS can be successfully used in cases of small arch complete dentures and removable partial dentures. Clinical Significance: The selection of the right denture base material is imperative as it largely affects the overall clinical outcomes and comforts. Results of the present study would aid the dentist in the selection of ideal denture base materials for specific cases like those requiring Cross Arch Stabilization, Small Arch Complete Dentures, and Removable Partial D entures.


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  1. American Dental Association Specification No.12 dental base resin material. ADA Professional Product Review. Available at http://www.ada.org/sections/scienceAndResearch/ pdfs/0804_whitening_testmethods.pdf(accessed online 1999; 1-2).
  2. Jagger DC, Harrison A, Jandt KD. The Reinforcement of Dentures. J Oral Rehab1999; 26:185-194.
  3. Nishigawa G, Matsunaga T, Maruo Y, Okamoto M, Natsuaki N. Finite Element Analysis of the Effect of the Bucco Lingual Position of Artificial Posterior Teeth under Occlusal Force on the Denture Supporting Bone of the Edentulous Patients. J Oral Rehab 2003;30:646-652.
  4. Lowe LG. Flexible denture flanges for patients exhibiting undercut tuberosities and reduced width of the buccal vestibule: a clinical report. J Prosthet Dent 2004;92(2):128- 131.
  5. Tandon R, Gupta S, Agarwal SK. Denture base materials: From past to future. Ind JDent Sci 2010;2(2):33-39.
  6. Stafford GD, Huggett R. The use of nylon as a denture-base material. J Prosthet Dent 1986;14(1):18-22.
  7. Yunus N, Rashid AA, Azmi LL, Abu-Hassan MI. Some flexural properties of a nylon denture base polymers. J Oral Rehab 2005;32:65-71.
  8. MacGregor AR, Graham J, Stafford GD, Huggett R. Recent experiences with denture polymers. J Dent 1984; 12:146-57.
  9. Taguchi Y, Shimamura I, Sakurai K. Effect of buccal part designs of polyamide resin partial removable dental prosthesis on retentive force. J Prosthodont Res 2011;55:44-47.
  10. Wadachi J, Sato M and Igarashi Y. Evaluation of the rigidity of dentures made of injection-molded materials. Dent Mater Jl 2013;32(3):508-581.
  11. Katsumata Y, Hojo S, Hamano N, Watanabe T, Yamaguchi H, Okada S et al. Bonding strength of auto polymerizing resin to nylon denture base polymer. Dent Mater J 2009; 28(4):409-418.
  12. Gladstone S, Kumar G.A comparative evaluation of flexural properties of flexible denture base material and compression molded heat polymerized denture base material - an in vitro study. KDJ 2010;33(4):213-215.
  13. Kohli S, Bhatia S. Flexural properties of polyamide versus injection-molded polymethylmethacrylate denture base materials. European J Prosthodont2013;1:3:63-67.
  14. Sharma P1, Garg S2, Kalra NM3. Effect of Denture Cleansers on Surface Roughness and Flexural Strength of Heat Cure Denture Base Resin-An In vitro Study. J Clin Diagn Res 2017;11(8):94-97.
  15. Al-Thobity AM, Gad M, Ar Rejaie A, Alnassar T, Al-Khalifa KS. Impact of Denture Cleansing Solution Immersion on Some Properties of Different Denture Base Materials: An In Vitro Study. J Prosthodont. 2017 Jun 9.
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