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Mechanical and thermal properties of polyamide versus reinforced PMMA denture base materials

  • Soygun, Koray (Department of Prosthodontics, Faculty of Dentistry, Cumhuriyet University) ;
  • Bolayir, Giray (Department of Prosthodontics, Faculty of Dentistry, Cumhuriyet University) ;
  • Boztug, Ali (Department of Chemical Engineering, Faculty of Engineering, Tunceli University)
  • Received : 2012.12.03
  • Accepted : 2013.04.23
  • Published : 2013.05.31

Abstract

PURPOSE. This in vitro study intended to investigate the mechanical and thermal characteristics of Valplast, and of polymethyl methacrylate denture base resin in which different esthetic fibers (E-glass, nylon 6 or nylon 6.6) were added. MATERIALS AND METHODS. Five groups were formed: control (PMMA), PMMA-E glass, PMMA-nylon 6, PMMA-nylon 6.6 and Valplast resin. For the transverse strength test the specimens were prepared in accordance with ANSI/ADA specification No.12, and for the impact test ASTM D-256 standard were used. With the intent to evaluate the properties of transverse strength, the three-point bending (n=7) test instrument (Lloyd NK5, Lloyd Instruments Ltd, Fareham Hampshire, UK) was used at 5 mm/min. A Dynatup 9250 HV (Instron, UK) device was employed for the impact strength (n=7). All of the resin samples were tested by using thermo-mechanical analysis (Shimadzu TMA 50, Shimadzu, Japan). The data were analyzed by Kruskal-Wallis and Tukey tests for pairwise comparisons of the groups at the 0.05 level of significance. RESULTS. In all mechanical tests, the highest values were observed in Valplast group (transverse strength: $117.22{\pm}37.80$ MPa, maximum deflection: $27.55{\pm}1.48$ mm, impact strength: $0.76{\pm}0.03$ kN). Upon examining the thermo-mechanical analysis data, it was seen that the E value of the control sample was 8.08 MPa, higher than that of the all other samples. CONCLUSION. Although Valplast denture material has good mechanical strength, its elastic modulus is not high enough to meet the standard of PMMA materials.

Keywords

References

  1. Marei MK. Reinforcement of denture base resin with glass filler. J Prosthodont 1999;8:18-26. https://doi.org/10.1111/j.1532-849X.1999.tb00004.x
  2. Stipho HD. Effect of glass fiber reinforcernent on some mechanical properties of autopolymerizing polymethyl methacrylate. J Prosthet Dent 1998;79:580-584. https://doi.org/10.1016/S0022-3913(98)70180-5
  3. Jagger D, Harrison A, Jagger R, Milward P. The effect of the addition of poly (methyl methacrylate) fibres on some properties of high strength heat-cured acrylic resin denture base material. J Oral Rehabil 2003;30:231-235. https://doi.org/10.1046/j.1365-2842.2003.01011.x
  4. Jagger DC, Harrison A, Jandt KD. The reinforcement of dentures. J Oral Rehabil 1999;26:185-194. https://doi.org/10.1046/j.1365-2842.1999.00375.x
  5. Dogan OM, Bolayr G, Keskin S, Dogan A, Bek B, Boztug A. The effect of esthetic fibers on impact resistance of a conventional heat-cured denture base resin. Dent Mater J 2007; 26:232-239. https://doi.org/10.4012/dmj.26.232
  6. Nakamura M, Takahashi H, Hayakawa I. Reinforcement of denture base resin with short-rod glass fiber. Dent Mater J 2007;26:733-738. https://doi.org/10.4012/dmj.26.733
  7. Ucar Y, Akova T, Aysan I. Mechanical properties of polyamide versus different PMMA denture base materials. J Prosthodont 2012;21:173-176. https://doi.org/10.1111/j.1532-849X.2011.00804.x
  8. Chen SY, Liang WM, Yen PS. Reinforcement of acrylic denture base resin by incorporation of various fibers. J Biomed Mater Res 2001;58:203-208. https://doi.org/10.1002/1097-4636(2001)58:2<203::AID-JBM1008>3.0.CO;2-G
  9. Schreiber CK. Polymethyl metacrylate reinforced with carbon fibers. Br Dent J 1971;130:29-30. https://doi.org/10.1038/sj.bdj.4802623
  10. Gutteridge DL. The effect ofincluding ultra-high-modulus polyethylene fibre on the impact strength of acrylic resin. Br Dent J 1988;164:177-180. https://doi.org/10.1038/sj.bdj.4806395
  11. Kanie T, Fujii K, Arikawa H, Inoue K. Flexural properties and impact strength of denture base polymer reinforced with woven glass fibers. Dent Mater 2000;16:150-158. https://doi.org/10.1016/S0109-5641(99)00097-4
  12. Solnit GS. The effect of methyl methacrylate reinforcement with silane-treated and untreated glass fibers. J Prosthet Dent 1991;66:310-314. https://doi.org/10.1016/0022-3913(91)90255-U
  13. Vallittu PK. Curing of a silane coupling agent and its effect on the transverse strength of autopolymerizing polymethylmethacrylate- glass fibre composite. J Oral Rehabil 1997;24: 124-130. https://doi.org/10.1046/j.1365-2842.1997.00464.x
  14. Yunus N, Rashid AA, Azmi LL, Abu-Hassan MI. Some flexural properties of a nylon denture base polymer. J Oral Rehabil 2005;32:65-71. https://doi.org/10.1111/j.1365-2842.2004.01370.x
  15. Jagger DC, Jagger RG, Allen SM, Harrison A. An investigation into the transverse and impact strength of "high strength" denture base acrylic resins. J Oral Rehabil 2002;29: 263-267. https://doi.org/10.1046/j.1365-2842.2002.00830.x
  16. Phoenix RD, Mansueto MA, Ackerman NA, Jones RE. Evaluation of mechanical and thermal properties of commonly used denture base resins. J Prosthodont 2004;13:17-27 https://doi.org/10.1111/j.1532-849X.2004.04002.x
  17. Jerolimov V, Jagger RG, Milward PJ. Effect of the curing cycle on acrylic denture base glass transition temperatures. J Dent 1991;19:245-248. https://doi.org/10.1016/0300-5712(91)90128-L
  18. Huggett R, Brooks SC, Campbell AM, Satguranathan R, Bell GA. Evaluation of analytical techniques for measurement of denture-base acrylic resin glass-transition temperature. Dent Mater 1990;6:17-19. https://doi.org/10.1016/0109-5641(90)90038-G
  19. Laird JL, Liolios G. Thermal analysis techniques for the rubber laboratory. Am Lab 1990;46-50.
  20. Boztug A, Cosun A, Bolayr G, Zengin HB, Ozdemir AK. Preparation of compatible blends of poly(methyl metacrylate) used in dentistry with a reactive terpolymer containing maleic anhydride and their thermomechanical characterization. J Appl Polym Sci 2006;100:363-367. https://doi.org/10.1002/app.23125
  21. McCabe JF, Walls AWG. Applied dental materials. 9th ed. Copenhagen; Blackwell Munksgaard, 2008.
  22. Vallittu PK, Lassila VP, Lappalainen R. Transverse strength and fatigue of denture acrylic-glass fiber composite. Dent Mater 1994;10:116-21. https://doi.org/10.1016/0109-5641(94)90051-5
  23. Karacaer O, Polat TN, Tezvergil A, Lassila LV, Vallittu PK. The effect of length and concentration of glass fibers on the mechanical properties of an injection- and a compressionmolded denture base polymer. J Prosthet Dent 2003;90:385-393 https://doi.org/10.1016/S0022-3913(03)00518-3
  24. Gutteridge DL. Reinforcement of poly (methyl methacrylate) with ultra-high-modulus polyethylene fiber. J Dent 1992;20: 50-54. https://doi.org/10.1016/0300-5712(92)90012-2
  25. John J, Gangadhar SA, Shah I. Flexural strength of heat-polymerized polymethyl methacrylate denture resin reinforced with glass, aramid, or nylon fibers. J Prosthet Dent 2001;86: 424-427. https://doi.org/10.1067/mpr.2001.118564
  26. Doğan OM, Bolayir G, Keskin S, Doğan A, Bek B. The evaluation of some flexural properties of a denture base resin reinforced with various aesthetic fibers. J Mater Sci Mater Med 2008;19:3343-3348.
  27. Stafford GD, Huggett R, MacGregor AR, Graham J. The use of nylon as a denture-base material. J Dent 1986;14:18-22. https://doi.org/10.1016/0300-5712(86)90097-7
  28. Takabayashi Y. Characteristics of denture thermoplastic resins for non-metal clasp dentures. Dent Mater J 2010;29:353-361 https://doi.org/10.4012/dmj.2009-114
  29. Gruszka I, Lewandowski S, Benko E, Perzyna M. Structure and mechanical properties of polyamid fibres. Fibers Text Eastern Eur 2005;13:133-136.
  30. Zappini G, Kammann A, Wachter W. Comparison of fracture tests of denture base materials. J Prosthet Dent 2003; 90:578-585. https://doi.org/10.1016/j.prosdent.2003.09.008
  31. Chen SY, Liang WM. Effects of fillers on fiber reinforced acrylic denture base resins. Mid Taiwan J Med 2004;9:203-210.
  32. Clarke RL. Dynamic mechanical thermal analysis of dental polymers. I. Heat-cured poly(methyl methacrylate)-based materials. Biomaterials 1989;10:494-498. https://doi.org/10.1016/0142-9612(89)90092-6
  33. Tezvergil A, Lassila LV, Vallittu PK. The effect of fiber orientation on the thermal expansion coefficients of fiber-reinforced composites. Dent Mater 2003;19:471-477. https://doi.org/10.1016/S0109-5641(02)00092-1

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