Shear Bond Strength of Sealants using Etch-and-Rinse and Self Etch Adhesive System in Primary Teeth

Abstract

Dental caries is the most common disease in primary dentition. Occlusal caries can prevent by sealant. Dental adhesives have been used in etch and rinse technique or self etch technique. The purpose of this study was  to compare the shear bond strength of sealants using phosphoric acid and self etch adhesive in primary  teeth. Eighty human primary molars were used and embedded in clear resin that lower than Teflon mold for  2 millimeters. Flat enamel was prepared more than 2 millimeters in diameter. These specimens were  randomly assigned to four groups, 20 teeth for each group. Group I was etch and rinse technique and Helioseal. Group II was etch and rinse technique and Helioseal F. Group III was self etch adhesive and Helioseal. Group IV was self etch adhesive and Helioseal F. Then, the shear bond strength was tested with the  Instron Universal Testing Machine at a crosshead speed of 0.5 millimeter per minute and analyzed using 
One-way ANOVA at 95 % confidence interval. The results of this study revealed that mean and standard deviation of the shear bond strength were 13.03 ± 2.68, 12.76 ± 2.97, 12.45 ± 2.90 and 13.27 ± 2.85 MPa respectively (p = 0.819). In conclusion, shear bond strength of sealants using etch and rinse technique and  self etch adhesive in primary teeth were not statistically significant different. The self etch adhesive is another choice bonding in sealant application due to easy application, less operative steps, shorten chair time, decrease contamination from water and saliva, and increase efficacy in pediatric dental treatment