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VOLUME 14 , ISSUE 5 ( September-October, 2013 ) > List of Articles

RESEARCH ARTICLE

The Effect of Different Bracket Base Cleaning Method on Shear Bond Strength of Rebonded Brackets

Emad F Al Maaitah, Sawsan Alomari, Elham S Abu Alhaija, Ahmed AM Saf

Citation Information : Maaitah EF, Alomari S, Alhaija ES, Saf AA. The Effect of Different Bracket Base Cleaning Method on Shear Bond Strength of Rebonded Brackets. J Contemp Dent Pract 2013; 14 (5):866-870.

DOI: 10.5005/jp-journals-10024-1417

Published Online: 00-10-2013

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


Abstract

Aim

To assess the effect of different bracket base conditioning method on shear bond strength (SBS) of rebonded brackets.

Materials and methods

Eighty brackets were bonded to freshly extracted premolar teeth using light cured composite adhesive. SBS was measured for 20 random samples as control group (G1). After debonding, 60 debonded brackets were allocated randomly into three groups of bracket base conditioning methods to remove the remaining adhesives. G2: bracket base cleaned with slow speed round carbide bur (CB), G3: cleaned with ultrasonic scaler (US), G4: cleaned with sandblasting (SB). After that, brackets were rebonded in the same manner as first bonding and SBS was measured. Modified adhesive remnant index (ARI) was recorded for all groups.

Results

SBS for new brackets was 11.95 MPa followed by 11.65 MPa for G2, 11.56 MPa for G4 and 11.04 MPa for G3 group. There were no statistically significant differences between all groups (p = 0.946). In all groups, failure mode showed that the majority of adhesive composite remained on the bracket base with ARI of 4. There was no statistically significant difference between all groups in ARI (p = 0.584).

Conclusion

In-office methods; slow speed CB and US are effective, quick and cheap methods for bracket base cleaning for rebonding.

How to cite this article

Al Maaitah EF, Alomari S, Alhaija ESA, Safi AAM. The Effect of Different Bracket Base Cleaning Method on Shear Bond Strength of Rebonded Brackets. J Contemp Dent Pract 2013;14(5):866-870.


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