Citation Information :
Deb S, Muniswamy L, Thota G, Thota L, Swarnakar A, Deepak PV, Badiyani BK. Impact of Surface Treatment with Different Repair Acrylic Resin on the Flexural Strength of Denture Base Resin: An In Vitro Study. J Contemp Dent Pract 2020; 21 (10):1137-1140.
Aim and objective: The aim and objective of the present study was to assess the flexural strength of denture base resin based on surface treatment with different acrylic resin repair materials. Materials and methods: Totally, 120 heat-polymerized polymethyl methacrylate denture base resin materials which are rectangular shaped with the size of 65 mm × 10 mm × 2.5 mm were fabricated. 150 μm-sized alumina used for surface treatment. All the 120 heat-cured, surface-treated acrylic denture base resin samples were randomly divided into three groups. Group I: glass-fiber-reinforced auto-polymerizing acrylic resin, group II: auto-polymerizing acrylic resin, and group III: light-cured acrylic resin. A universal testing machine was used to test the flexural strength of the repaired specimens. Results: A highest mean flexural strength (88.96 ± 0.31) was demonstrated by group I, followed by group II (72.18 ± 1.86) and group III (66.30 ± 1.02). ANOVA demonstrated a statistically significant inter-group difference. On multiple comparisons, using Tukey\'s post hoc test a statistically significant difference between groups I and II and between groups I and III was found. Conclusion: After considering the limitations, the present study concluded that the highest flexural strength is shown by glass-fiber-reinforced auto-polymerizing acrylic resin than by auto-polymerizing acrylic resin and light-cured acrylic resin. Clinical significance: Denture repair comprises of joining two fractured parts of a denture with a denture repair material. The success of denture repair depends on the adhesion phenomenon. The treatment of the surface can be accomplished using a suitable material which changes chemically and morphologically and thus promotes better adhesion.
Shimizu H, Kurtz KS, Yoshinaga M, et al. Effect of surface preparations on the repair strength of denture base resin. Int Chin J Dent 2002;2:126–133.
Ward JE, Moon PC, Levine RA, et al. Effect of repair surface design, repair material, and processing method on the transverse strength of repaired acrylic denture resin. J Prosthet Dent 1992;67(6):815–820. DOI: 10.1016/0022-3913(92)90591-W.
Suvarna S, Chhabra T, Raghav D, et al. Residual monomer content of repair autopolymerizing resin after microwave post polymerization treatment. Eur J Prosthodont 2014;2(1):28–32. DOI: 10.4103/2347-4610.122991.
Ayaz EA, Bagis B, Turgut S. Effects of thermal cycling on surface roughness, hardness and flexural strength of polymethylmethacrylate and polyamide denture base resins. J Appl Biomater Func 2015;13(3):280–286. DOI: 10.5301/jabfm.5000236.
Minami H, Suzuki S, Minesaki Y, et al. In vitro evaluation of the influence of repairing condition of denture base resin on the bonding of autopolymerizing resins. J Prosthet Dent 2004;91(2):164–170. DOI: 10.1016/j.prosdent.2003.10.023.
Mahajan H, Chandu GS, Mishra SK. An in vitro study of the effect of design of repair surface on the transverse strength of repaired acrylic resin using autopolymerizing resin. Niger J Clin Pract 2014;17(1):38–42. DOI: 10.4103/1119-3077.122833.
Jassim RK, Radhi AAA. Evaluation the biological effect of two types of denture base materials reinforced with silanated glass fiber. J Bagh Coll Dent 2011;23(2):26–30.
Jain A, Ray S, Mitra R, et al. Light cure tip distance and shear bond strength: does it have any clinical significance? J Ind Orthod Soc 2013;47(3):135–142. DOI: 10.1177/0974909820130304.
Keyf F, Uzun G. The effects of glass fiber reinforcement at different concentrations on the transverse strength, deflection and modulus of elasticity of a provisional fixed partial denture resin. J Biomater Appl 2001;16(2):149–156. DOI: 10.1106/BGNY-V5DA-VMWB-TC2W.
Minami H, Suzuki S, Kurashige H, et al. Flexural strengths of denture base resin repaired with autopolymerizing resin and reinforcements after thermocycle stressing. J Prosthodont 2005;14(1):12–18. DOI: 10.1111/j.1532-849X.2005.00006.x.
Alkurt M, Yeşil Duymuş Z, Gundogdu M. Effect of repair resin type and surface treatment on the repair strength of heat-polymerized denture base resin. J Prosthet Dent 2014;111(1):71–78. DOI: 10.1016/j.prosdent.2013.09.007.
Jagger RG, al-Athel MS, Jagger DC, et al. Some variables influencing the bond strength between PMMA and a silicone denture lining material. Int J Prosthodont 2002;15(1):55–58.
Harrison A, Belton EL, Meades K. Do self-curing acrylic resin repairs gain strength with age? J Dent 1977;5(4):334–338. DOI: 10.1016/0300-5712(77)90127-0.
Aydogan Ayaz E, Durkan R. Influence of acrylamide monomer addition to the acrylic denture-base resins on mechanical and physical properties. Int J Oral Sci 2013;5(4):229–235. DOI: 10.1038/ijos.2013.69.
Razavi R, Khan Z, von Fraunhofer JA. The bond strength of a visible light-cured reline resin to acrylic resin denture base material. J Prosthet Dent 1990;63(4):485–487. DOI: 10.1016/0022-3913(90)90243-6.
Arun Kumar P, Iniyan K, Balasubramaniam R, et al. The effect of surface treatments on the shear bond strength of acrylic resin denture base with different repair acrylic resin: an in vitro study. J Pharm Bioallied Sci 2019;11(Suppl 2):S380–S384. DOI: 10.4103/JPBS.JPBS_40_19.