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Orthodontics 11 (2010), No. 2     15. June 2010
Orthodontics 11 (2010), No. 2  (15.06.2010)

Page 123-128

Effects Of Three Adhesion Boosters On The Shear Bond Strength Of New And Rebonded Brackets-An In Vitro Study
Vijayakumar, Anitha / Venkateswaran, Sundaram / Krishnaswamy, N. Rengarajan
Aim: To evaluate the effects of three adhesion boosters-All-Bond 2, Enhance LC, and Ortho Solo-on the shear bond strength of new and rebonded (previously debonded) brackets.
Methods: One hundred new and 100 sandblasted debonded brackets were bonded to 200 extracted human premolars and divided into eight groups.
Results: The new brackets/Ortho Solo group yielded the highest bond strength, followed by the new brackets/All-Bond 2 and the new brackets/ Enhance LC groups. During rebonding, Ortho Solo improved the bond strength significantly; however, All-Bond 2 and Enhance LC did not.
Conclusion: (1) Bond strength is significantly improved when new brackets are bonded with an adhesion booster; (2) without any adhesion booster, sandblasted rebonded brackets yield a significantly lower bond strength than new brackets; (3) Enhance LC failed to improve the bond strength of rebonded brackets; (4) Ortho Solo increased the bond strength of rebonded brackets significantly; and (5) brackets rebonded with Ortho Solo yielded comparable bond strength as new brackets without any adhesion booster.

Keywords: adhesion boosters, rebonding, shear bond strength