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Paper Information

Journal:   JOURNAL OF MASHHAD DENTAL SCHOOL   2007 , Volume 31 , Number SPECIAL ISSUE; Page(s) 35 To 38.
 
Paper: 

COMPARISON OF AMALGAM DENTIN BOND STRENGTH WITH DIFFERENT BONDING AGENTS

 
 
Author(s):  MOGHADAS M.J., GHAVAM NASIRI MARJANEH*, ALAGHEH MAND HOMAYOUN, GOUHARIAN R., SALARI TAGHI
 
* DEPT. OF OPERATIVE DENTISTRY, SCHOOL OF DENTISTRY AND DENTAL RESEARCH CENTER OF MASHHAD UNIVERSITY OF MEDICAL SCIENCES, MASHHAD, IRAN
 
Abstract: 

Introduction: Recently, Adhesion of amalgam to dentin has been a common procedure. The aim of this study was to evaluate, the shear bond strength of amalgam to dentin using different adhesive systems.
Materials & Methods: In this experimental study, amalgam dentin bond strength was determined using a punch out method in sections of human molar dentin. There were 5 treatment groups (n=20) consisting of 4 experimental groups (dental adhesives: One Coat Bond, Scotchbond MP, Panavia 21 and PQ1) and 1 control group (copal varnish: Copalite) followed by restoration with a spherical high copper amalgam.
Results: The ANOVA and Duncan tests demonstrated a significant difference among groups (P<0.05). No significant difference in amalgam dentin bond strength was found among One Coat Bond (23,47MPa), Scotchbond MP (21,02MPa), and Panavia (20.06MPa), but there was a significant difference between the each of the mentioned groups with PQ1 and Copalite. The lowest bond strength was seen in PQ1 (13.15MPa) and Copalite (14.14MPa).
Conclusion: High filler content in PQ1 was an important factor for creating the lowest amalgam dentin bond strength.

 
Keyword(s): AMALGAM, BONDING AGENT, DENTIN BOND STRENGTH
 
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