Oral Health and Dental Management

Shear bond strength of composite to primary enamel treated with casein phosphopeptide amorphous calcium phosphate using total-etch and self-etch bonding systems

11^th Asia Pacific Congress on Dental and Oral Health

July 25-27, 2016 Bangkok, Thailand

S Kaveh, M Karamie, F Shirani, S Talaee and E Salehi

Semnan University of Medical Science, Iran

Scientific Tracks Abstracts: Oral Health Dent Manag

Abstract:

This in vitro experimental study was conducted on 96 sound primary teeth randomly divided into 8 groups (n=12). Four groups were demineralized and the rest remained sound. All the specimens were subjected to pH cycling. Then, GC-Tooth Mousse was applied on their surfaces. Composite resin was bonded using Clearfil SE Bond self-etch or Single Bond total-etch bonding systems. The bond strength of the specimens was measured by an Instron machine and the mode of fracture was assessed by a stereomicroscope. Data were analyzed by one-way and two-way ANOVA and chi-square test. In the total-etch system, the bond strength of demineralized group was significantly higher than that of sound group (p=0.009). This difference in self-etch system was not significant (p=0.928). The CPP-ACP remineralizing agent decreased the bond strength in total-etch and increased the bond strength in self-etch group (p=0.032 and p=0.018, respectively). No difference was observed in the mode of fracture of the two bonding systems. GC Tooth Mousse decreased the bond strength to composite in total-etch and increased it in self-etch group. Higher bond strength to composite can be achieved in teeth with white spot lesions (WSLs) when total-etch system is used.

Biography :

Sara Kaveh has completed her DDS from Mashhad Dental School, Iran and MS from Isfahan Dental School Iran. She is the Professor of Operative Dentistry in Semnan Dental School.

Email: slowness.1986@yahoo.com