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:: Volume 25, Issue 3 (7-2013) ::
J Iran Dent Assoc 2013, 25(3): 190-197 Back to browse issues page
Effect of Denture Cleansers on Tensile Bond Strength of Soft Liners to Denture Base Resin
Farideh Geramipanah1 , Ali akbar Moradi Haghighi2 , Somayeh Zeighami * 3
1- Member of Dental Implant Research Center and Associate Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Science. Tehran, Iran
2- Dentist
3- Member of Dental Research Center and Assistant Professor, Department of Prosthodontics, School of Dentistry, Tehran University of Medical Science. Tehran, Iran , s-zeighami@tums.ac.ir
Abstract:   (8102 Views)
  Background and Aim : Optimal bond strength between soft liners and denture base resin is an important requirement for application of these materials. This study aimed to determine the effect of 2.5% sodium hypochlorite (NaOCl) and Corega denture cleanser solutions on tensile bond strength of Acropars, Molloplast-B, GC soft liner and Mollosil soft liners to denture base resin .

  Materials and Methods : In this in-vitro experimental study, 30 specimens of each of the 4 soft liners according to the manufacturer’s instructions were processed between two blocks of polymethyl methacrylate. Specimens were divided into 3 groups and after immersion in 2.5% sodium hypochlorite and Corega solutions were subjected to tensile bond strength testing using Universal Testing Machine (Zwick Roell, Z50, Germany) with a crosshead speed of 5 mm/min. Data were analyzed with two-way ANOVA, Tamhane’s post hoc test and Fisher’s exact test .

  Results : The mean tensile bond strength of all three testing positions was 3.27 ± 1.04, 0.93 ± 0.35, 0.71 ± 0.31 and 0.28 ± 0.11 MPa for Acropars, Molloplast-B, GC soft liner and Mollosil, respectively. Type of soft liner material had a significant effect on the tensile bond strength of soft liner to denture base resin (P<0.0001) but type of cleansing solution had no significant influence on tensile bond strength of specimens .

  Conclusion : The 2.5% sodium hypochlorite and Corega solutions had no significant effect on tensile bond strength of soft liners to denture base .

 

Keywords: Cleansing solutions, tensile strength, acrylic resins, denture liners
Full-Text [PDF 194 kb]   (2796 Downloads)    
Type of Study: Original | Subject: Prosthodontics
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Geramipanah F, Moradi Haghighi A A, Zeighami S. Effect of Denture Cleansers on Tensile Bond Strength of Soft Liners to Denture Base Resin. J Iran Dent Assoc 2013; 25 (3) :190-197
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Volume 25, Issue 3 (7-2013) Back to browse issues page
Journal of Iranian Dental Association

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