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VOLUME 14 , ISSUE 6 ( November-December, 2013 ) > List of Articles

RESEARCH ARTICLE

An Evaluation of Shear Bond Strength of Self-Etch Adhesive on Pre-etched Enamel: An in vitro Study

Abdul Mujeeb, Bhadra Rao, Satti Narayana Reddy, Kanchan Mehta, G Saritha

Citation Information : Mujeeb A, Rao B, Reddy SN, Mehta K, Saritha G. An Evaluation of Shear Bond Strength of Self-Etch Adhesive on Pre-etched Enamel: An in vitro Study. J Contemp Dent Pract 2013; 14 (6):1036-1038.

DOI: 10.5005/jp-journals-10024-1446

Published Online: 01-12-2013

Copyright Statement:  Copyright © 2013; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

To determine the shear bond strength of self-etch adhesive G-bond on pre-etched enamel.

Materials and methods

Thirty caries free human mandibular premolars extracted for orthodontic purpose were used for the study. Occlusal surfaces of all the teeth were flattened with diamond bur and a silicon carbide paper was used for surface smoothening. The thirty samples were randomly grouped into three groups. Three different etch systems were used for the composite build up: group 1 (G-bond self-etch adhesive system), group 2 (G-bond) and group 3 (Adper single bond). Light cured was applied for 10 seconds with a LED unit for composite buildup on the occlusal surface of each tooth with 8 millimeters (mm) in diameter and 3 mm in thickness. The specimens in each group were tested in shear mode using a knife-edge testing apparatus in a universal testing machine across head speed of 1 mm/ minute. Shear bond strength values in Mpa were calculated from the peak load at failure divided by the specimen surface area. The mean shear bond strength of all the groups were calculated and statistical analysis was carried out using one-way Analysis of Variance (ANOVA).

Results

The mean bond strength of group 1 is 15.5 Mpa, group 2 is 19.5 Mpa and group 3 is 20.1 Mpa. Statistical analysis was carried out between the groups using one-way ANOVA. Group 1 showed statistically significant lower bond strength when compared to groups 2 and 3. No statistical significant difference between groups 2 and 3 (p < 0.05).

Conclusion

Self-etch adhesive G-bond showed increase in shear bond strength on pre-etched enamel.

How to cite this article

Rao B, Reddy SN, Mujeeb A, Mehta K, Saritha G. An Evaluation of Shear Bond Strength of Self-Etch Adhesive on Pre-etched Enamel: An In vitro Study. J Contemp Dent Pract 2013;14(6):1036-1038.


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