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

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Wanna Lowphruckmanee Nakharin Khueanpet


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


Article Details

Research Article
Author Biographies

Wanna Lowphruckmanee

Department of Dentistry, Buddhachinaraj Phitsanulok Hospital, Amphur Muang, Phitsanulok, 65000

Nakharin Khueanpet

Office of Laboratory Affairs, Faculty of Dentistry, Naresuan University, Amphur Muang, Phitsanulok, 65000


etch and rinse technique, self etch technique, shear bond strength