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Paper Information

Journal:   JOURNAL OF ISLAMIC DENTAL ASSOCIATION OF IRAN (MAJALLAH-I-DANDANPIZISHKI)   SUMMER 2007 , Volume 19 , Number 2 (63); Page(s) 56 To 61.
 
Paper: 

SHEAR BOND STRENGTH OF COMPOSITE / AMALGAM RESTORATIONS: EFFECT OF USING ADHESIVE CEMENT

 
 
Author(s):  KHOROUSHI M.*, YEGANEH JOU M.
 
* OPERATIVE DENTISTRY & DENTAL MATERIALS DEPT., FACULTY OF DENTISTRY, ISFAHAN UNIVERSITY OF MEDICAL SCIENCES
 
Abstract: 
Background and Aim: The aim of this study was to evaluate the shear bond strength (SBS) of composite/amalgam restorations when adhesive resin cement was used.
Materials and Methods: 60 Acrylic cylinders were prepared using special Teflon molds. A square-shaped cavity was made at the center of each cylinder. The samples were divided into four groups (n=15). After amalgam condensation and burnishing in the first group, a two parts Teflon die with a cylindrical hole at the center was placed on the amalgam surface. These holes were filled with composite-resin. Single bond and Rely X-ARC were applied on amalgam surfaces respectively, prior to curing the composite-resins in the second group. In groups 3 and 4, the prepared amalgam samples were kept in 30C for 24 hours. Then they were identically roughened using burs. In group 3, composite was bonded immediately and in group 4, first single bond, and then Rely-X ARC were applied before curing the composite. The SBS was determined by DARTEC testing machine.
Results: The mean SBS for the study groups were 9
±2.77, 8.74±6.42, 6.13±2.35 and 8.25±1.43 respectively. The maximum value was related to group I and the minimum value belonged to group 3. However, there were no significant differences between the study groups.
Conclusion: Application of Rely X-ARC in amalgam/composite interface did not cause any significant difference.
 
Keyword(s): AMALGAM, COMPOSITE, RESIN, BOND STRENGTH, ADHESIVE RESIN CEMENT
 
References: 
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