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Title

Shear Bond Strength of Acrylic Denture Teeth to PMMA and Polyamide Denture Base Materials

Year: 1397
COI: JR_JDMT-7-1_003
Language: EnglishView: 124
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Authors

Mohammadreza Nakhaei - Associate Professor, Department of Prosthodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.
hossein dashti - Assistant Professor, Department of Prosthodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
reza Barazandeh - DDS, Mashhad, Iran
nafiseh teimouri - Postgraduate student , Department of Prosthodontics, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.

Abstract:

Introduction: Detachment of denture teeth from denture base is one of the most common reasons for costly denture repairs .This study aimed at evaluating the bond strength of an acrylic denture tooth to polyamide injection-molded thermoplastic denture base material compared with three conventional polymethylmethacrylate (PMMA) denture base resins. Materials and Method: A total of 40 acrylic denture molar teeth were randomly allocated into four groups (n=10) of heat-polymerized (HP), Auto-polymerized (AP), Injection molded (IM) and Polyamide thermoplastic (PT). All denture base/acrylic teeth combinations underwent 5000 thermal cycles (5-55◦C).Samples were subjected to shear bond strength test by a universal testing machine with a 1 mm/min crosshead speed .Data were analyzed using ANOVA and Tukey’s tests(α=0.05). Results: Mean ±SD of shear bond strength values were (MPa) 4.82±1.21, 4.52±1.67, 3.7±0.84 and 4.13±2.21 for groups HP, AP, IM and PT respectively. No significant difference was found among the experimental groups (P=0.429). Conclusion: Polyamide thermoplastic denture base resin was similar to conventional PMMA denture base materials in terms of bond strength to artificial denture teeth.    

Keywords:

Bond Strength, Polyamide, flexible dentures, denture base materials

Paper COI Code

This Paper COI Code is JR_JDMT-7-1_003. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/893129/

How to Cite to This Paper:

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Nakhaei, Mohammadreza and dashti, hossein and Barazandeh, reza and teimouri, nafiseh,1397,Shear Bond Strength of Acrylic Denture Teeth to PMMA and Polyamide Denture Base Materials,https://civilica.com/doc/893129

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