International Journal of Prosthodontics and Restorative Dentistry

Register      Login

VOLUME 12 , ISSUE 4 ( October-December, 2022 ) > List of Articles

ORIGINAL RESEARCH

Tensile Bond Strength of Hypoallergenic Acetal Resin and Heat-cured Acrylic Resin to Soft Denture Liners

Secil Ozkan Ata, Rifat Ugurlutan

Keywords : Acetal resin, Acrylic resin, Hypoallergenic, Soft relining materials, Tensile bond strength

Citation Information : Ata SO, Ugurlutan R. Tensile Bond Strength of Hypoallergenic Acetal Resin and Heat-cured Acrylic Resin to Soft Denture Liners. Int J Prosthodont Restor Dent 2022; 12 (4):162-166.

DOI: 10.5005/jp-journals-10019-1381

License: CC BY-NC 4.0

Published Online: 03-05-2023

Copyright Statement:  Copyright © 2022; The Author(s).


Abstract

Purpose: The purpose of this research was to evaluate the tensile strength of hypoallergenic acetal resin, heat-cured polymethylmethacrylate (PMMA) resin, to acrylic and silicone-based lining materials. Materials and methods: Heat-cured PMMA resins and acetal resins (pink) were used as denture base materials and samples were prepared with a dimension of 10 x 10 x 43 mm blocks (n = 16 each). Silicone-based liner (soft-liner tough) and acrylic resin-based liner (Visco-gel) specimens were processed between heat-cured PMMA resin blocks and acetal resin blocks (3 x 10 x 10 mm). The groups were denoted as HCAS—heat cure-soft-liner tough group, n = 8; HCAV—heat cure-Visco-gel group, n = 8; ACS—acetal resin-soft-liner tough group, n = 8; ACV—acetal resin-Visco-gel group, n = 8. On a universal testing machine with a crosshead speed of 1 mm/minute, the tensile bond strength was determined. Bonferroni HSD and one-way analysis of variance (ANOVA) test were used for data analysis (p < 0.05 was considered significant). Results:There were significant differences in bond strength across groups (p < 0.001). The acetal resin group exhibited lower bonding strength values than the heat cure PMMA resin group. The tensile bond strength of Visco-gel [0.88 ± 0.09 megapascals (MPa), HCAV group; 0.29 ± 0.04 MPa, ACV group] was higher than Soft-liner Tough (0.62 ± 0.38 Mpa, HCAS group; 0.19 ± 0.34 MPa, ACS group) in both resins. Mostly adhesive failures were seen in all groups. Intergroup comparison showed significant differences between all groups except for ACV vs ACS (p = 1.000). Conclusion: Regardless of the liner type, acetal resin demonstrated the lowest tensile strength values. Heat-cured acrylic with Visco-gel liners performed better than silicone-based liners and was preferred in patients who did not exhibit hypersensitivity.


PDF Share
  1. Pagano S, Lombardo G, Caponi S, et al. Bio-mechanical characterization of a CAD/CAM PMMA resin for digital removable prostheses. Dent Mater 2021;37(3):118–130. DOI: 10.1016/j.dental.2020.11.003
  2. Boeckler AF, Morton D, Poser S, et al. Release of dibenzoyl peroxide from polymethyl methacrylate denture base resins: an in vitro evaluation. Dent Mater 2008;24(12):1602–1607. DOI: 10.1016/j.dental.2008.03.019
  3. Lung CY, Darvell BW. Minimization of the inevitable residual monomer in denture base acrylic. Dent Mater 2005;21(12):1119–1128. DOI: 10.1016/j.dental.2005.03.003
  4. Uter W, Geier J. Contact allergy to acrylates and methacrylates in consumers and nail artists - data of the information network of departments of dermatology. Contact Derm 2015;72(4):224–228. DOI: 10.1111/cod.12348
  5. Stoeva IL. Work-related skin symptoms among Bulgarian dentists. Contact Derm 2020; 82(6):380–386. DOI: 10.1111/cod.13523
  6. Pfeiffer P, Rolleke C, Sherif L. Flexural strength and moduli of hypoallergenic denture base materials. J Prosthet Dent 2005;93(4):372–377. DOI: 10.1016/j.prosdent.2005.01.011
  7. Pfeiffer P, An N, Schmage P. Repair strength of hypoallergenic denture base materials. J Prosthet Dent 2008;100(4):292–301. DOI: 10.1016/S0022-3913(08)60209-7
  8. Hinz S, Bensel T, Bömicke W, et al. In vitro analysis of the mechanical properties of hypoallergenic denture base resins. Materials (Basel) 2022;15(10):3611. DOI: 10.3390/ma15103611
  9. Mese A, Guzel KG. Effect of storage duration on the hardness and tensile bond strength of silicone- and acrylic resin-based resilient denture liners to a processed denture base acrylic resin. J Prosthet Dent 2008;99(2):153–159. DOI: 10.1016/S0022-3913(08)60032-3
  10. Jacobsen NL, Mitchell DL, Johnson DL, et al. Lased and sandblasted denture base surface preparations affecting resilient liner bonding. J Prosthet Dent 1997;78(2):153–158. DOI: 10.1016/s0022-3913(97)70119-7
  11. Botega DM, Sanchez JL, Mesquita MF, et al. Effects of thermocycling on the tensile bond strength of three permanent soft denture liners. J Prosthodont 2008;17(7):550–554. DOI: 10.1111/j.1532-849X.2008.00342.x
  12. Song YH, Song HJ, Han MK, et al. Cytotoxicity of soft denture lining materials depending on their component types. Int J Prosthodont 2014;27(3):229–235. DOI: 10.11607/ijp.3848
  13. Jepson NJ, McGill JT, McCabe JF. Influence of dietary simulating solvents on the viscoelasticity of temporary soft lining materials. J Prosthet Dent 2000;83(1):25–31. DOI: 10.1016/s0022-3913(00)70085-0
  14. Kulak-Ozkan Y, Sertgoz A, Gedik H. Effect of thermocycling on tensile bond strength of six silicone-based, resilient denture liners. J Prosthet Dent 2003;89(3):303–310. DOI: 10.1067/mpr.2003.41
  15. Hamedirad F, Alikhasi M, Hasanzade M. The effect of sandblasting on bond strength of soft liners to denture base resins: a systematic review and meta-analysis of in vitro studies. Int J Dent 2021;2021:5674155. DOI: 10.1155/2021/5674155
  16. Kim BJ, Yang HS, Chun MG, et al. Shore hardness and tensile bond strength of long-term soft denture lining materials. J Prosthet Dent 2014;112(5):1289–1297. DOI: 10.1016/j.prosdent.2014.04.018
  17. Kawano F, Dootz ER, Koran A 3rd, et al. Craig RG comparison of bond strength of six soft denture liners to denture base resin. J Prosthet Dent 1992;68(2):368–371. DOI: 10.1016/0022-3913(92)90347-d
  18. Tasopoulos T, Jagger RG, Jagger DC. Bond strength of chair-side denture soft lining materials. Strength, Fracture and Complexity 2010;6(3):141–148. DOI: 10.3233/SFC-2010-0112
  19. Hong G, Murata H, Hamada T. Relationship between plasticizer content and tensile bond strength of soft denture liners to a denture base resin. Dent Mater J 2004; 23(2):94–99. DOI: 10.4012/dmj.23.94
  20. Takahashi JM, Consani RL, Henriques GE, et al. Effect of accelerated aging on permanent deformation and tensile bond strength of autopolymerizing soft denture liners. J Prosthodont 2011;20(3):200–204. DOI: 10.1111/j.1532-849X.2010.00679.x
  21. Pinto JR, Mesquita MF, Henriques GE, et al. Effect of thermocycling on bond strength and elasticity of 4 long-term soft denture liners. J Prosthet Dent 2002;88(5):516–521. DOI: 10.1067/mpr.2002.128953
  22. Emmer TJ Jr, Emmer TJ Sr, Vaidynathan J, et al. Bond strength of permanent soft denture liners bonded to the denture base. J Prosthet Dent 1995;74(6):595–601. DOI: 10.1016/s0022-3913(05)80311-7
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.