A comparative study to evaluate the shear bond strength of two commercially available intraoral ceramic repair systems with Ni-Cr base metal alloy- An in vitro study.

Abstract

Background: Metal ceramics, are normally used materials nowadays in Prosthodontics. These materials are used to fabricate dental prostheses which replace missing or damaged dental structures. This existing research was undertaken to differentiate and appraise the shear bond strength of two commonly obtainable intraoral repair systems for dental ceramics.

Materials and procedures: Overall 52 specimens were incorporated into this research and were split into groups, each group comprising 26 samples.

Group A – Contains Ceramic repair N system (Ivoclar, Vivadent), Group B –Contains Clearfil repair system (Kuraray, Japan). A total of 52 discs were prepared by using base metal alloy i.e. (Ni-Cr). The dimension of each disc is 20 mm in diameter and thickness was 1.5 mm, for evenness of base metal thickness of 1.5 mm and 2mm thickness of the repair system, the wax pattern was concocted. Universal testing machine was incorporated into this research to access the bond (shear) strength of these materials. The data was collected and inspected by using Statistical Package for Social Sciences (SPSS) 21.0 version software application.

Result: Mean value of samples for shear bond strength in group (A) was 14.44 MPa whereas for group (B) was 17.006 MPa. Despite the fact differentiating the value (mean) of shear bond strength between these groups, remarkable results were obtained.

Conclusion: This study concluded that the bond potency of the Clearfil repair system is more than Ceramic repair N system.