The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

VOLUME 17 , ISSUE 2 ( February, 2016 ) > List of Articles

RESEARCH ARTICLE

Effect of Different Surface Treatments and Thermocycling on Bond Strength of a Silicone-based Denture Liner to a Denture Base Resin

Farzaneh Ahrari, Mohammadreza Nakhaei, Hossein Dashti, Samaneh Vasigh, Shazia Mushtaq, Rohit Mohan Shetty

Citation Information : Ahrari F, Nakhaei M, Dashti H, Vasigh S, Mushtaq S, Shetty RM. Effect of Different Surface Treatments and Thermocycling on Bond Strength of a Silicone-based Denture Liner to a Denture Base Resin. J Contemp Dent Pract 2016; 17 (2):154-159.

DOI: 10.5005/jp-journals-10024-1819

Published Online: 01-02-2016

Copyright Statement:  Copyright © 2016; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

The aim of this study is to evaluate the effects of three different surface treatments and thermocycling on the tensile strength of a silicone lining material to denture resin.

Materials and methods

A total of 96 cube-shaped specimens were fabricated using heat-cured polymethyl methacrylate (PMMA) denture base resin. Three millimeters of the material was cut from the midsection. The specimens were divided into four groups. The bonding surfaces of the specimens in each group received one of the following surface treatments: no surface treatment (control group), airborne particle abrasion with 110 μm alumina particles (air abrasion group), Er:yttrium aluminum garnet laser irradiation (laser group), and air abrasion + laser. After the lining materials were processed between the two PMMA blocks, each group was divided into two subgroups (n = 12), either stored in distilled water at 37°C for 24 hours or thermocycled between 5 and 55°C for 5,000 cycles. The specimens were tested in tensile and shear strength in a universal testing machine. Data were analyzed with two-way analysis of variance and Tamhane's post hoc tests (α = 0.05). The mode of failure was determined, and one specimen in each group was examined by scanning electron microscopy.

Results

Surface-treated groups demonstrated significantly higher tensile strengths compared to the control group (p < 0.001). Nonetheless, no significant differences were found between surface-treated groups (p > 0.05). The tensile strength was significantly different between thermocycled and waterstored specimens (p = 0.021).

Conclusion

Altering the surface of the acrylic denture base resin with air abrasion, laser, and air abrasion + laser increased the tensile strength. Thermocycling resulted in decrease in bond strength of silicone-based liner to surface-treated acrylic resin.

Clinical significance

Pretreatment of denture base resins before applying the soft liner materials improves the bond strength. However, thermocycling results in decrease in bond strength of soft denture liner to surface-treated acrylic resin.

How to cite this article

Nakhaei M, Dashti H, Ahrari F, Vasigh S, Mushtaq S, Shetty RM. Effect of Different Surface Treatments and Thermocycling on Bond Strength of a Silicone-based Denture Liner to a Denture Base Resin. J Contemp Dent Pract 2016;17(2):154-159.


PDF Share
  1. Effect of sealer coating on mechanical and physical properties of permanent soft lining materials. Gerodontology 2012 Jun;29(2):e401-e407.
  2. Influence of curing method, sealer, and water storage on the hardness of a soft lining material over time. J Prosthodont 2001 Mar;10(1):42-45.
  3. Effects of thermocycling on the tensile bond strength of three permanent soft denture liners. J Prosthodont 2008 Oct;17(7):550-554.
  4. Effect of microwave disinfection on the hardness and adhesion of two resilient liners. J Prosthet Dent 2005 Aug;94(2):183-189.
  5. Dynamic viscoelastic properties of processed soft denture liners: Part I—initial properties. J Prosthet Dent 1995 May;73(5):471-477.
  6. Evaluation of the viscoelastic properties of denture soft lining materials. J Dent 1993 Jun;21(3):163-170.
  7. Adhesive bond strength and compliance for denture soft lining materials. Biomaterials 2002 Mar;23(5):1347-1352.
  8. Soft lining materials— a review. Eur J Prosthodont Restor Dent 1995 Jun;3(4):163-174.
  9. Prevention and treatment of Candida colonization on denture liners: a systematic review. J Prosthet Dent 2013 Nov;110(5):356-362.
  10. 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 Feb;99(2):153-159.
  11. Effect of different surface treatments on tensile bond strength of silicone-based soft denture liner. Lasers Med Sci 2011 Nov;26(6):783-788.
  12. Resilient denture base materials. Part 1, introduction and laboratory evaluation. Br Dent J 1962;113:195-203.
  13. The nature of the interface between polymethyl methacrylate denture base materials and soft lining materials. J Dent 1981 Dec;9(4):336-346.
  14. Effect of surface treatments on the bond strength of soft denture lining materials to an acrylic resin denture base. J Prosthet Dent 2014 Oct;112(4):964-971.
  15. Bond strength of a silicone lining material to alumina-abraded and lased denture resin. J Biomed Mater Res B Appl Biomater 2004 Oct;71(1):196-200.
  16. Effect of silica coating and silane surface treatment on the bond strength of soft denture liner to denture base material. J Appl Oral Sci 2013 Jul-Aug;21(4):300-306.
  17. Strength of the bond between a silicone lining material and denture resin after Er:YAG laser treatments with different pulse durations and levels of energy. Lasers Med Sci 2012 Mar;27(2):281-285.
  18. Tensile bond strength of silicone-based soft denture liner to two chemically different denture base resins after various surface treatments. Lasers Med Sci 201 Jan 3;28(1):119-123.
  19. Properties of resilient denture liners. J Am Dent Assoc 1961 Sep;63:382-390.
  20. Effectiveness of silica-lasing method on the bond strength of composite resin repair to Ni-Cr alloy. J Prosthodont 2015 Apr;24(3):225-232.
  21. Peel strength of denture liner to PMMA and polyamide: laser versus air-abrasion. J Adv Prosthodont 2013 Aug;5(3):287-295.
  22. Effect of thermocycling on tensile bond strength of six silicone-based, resilient denture liners. J Prosthet Dent 2003 Mar;89(3):303-310.
  23. 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 Feb;99(2):153-159.
  24. Effect of thermocycling on the tensile and shear bond strengths of three soft liners to a denture base resin. J Appl Oral Sci 2007 Feb;15(1):18-23.
  25. The effect of thermocycling on peel strength of six soft lining materials. J Oral Rehabil 2002 Jun;29(6):583-587.
  26. Effect of thermocycling on bond strength and elasticity of 4 long-term soft denture liners. J Prosthet Dent 2002 Nov;88(5):516-521.
  27. Comparison of bond strength of six soft denture liners to denture base resin. J Prosthet Dent 1992 Aug;68(2):368-371.
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.