The Journal of Contemporary Dental Practice

Register      Login

SEARCH WITHIN CONTENT

FIND ARTICLE

Volume / Issue

Online First

Archive
Related articles

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: 01-02-2014

Copyright Statement:  Copyright © 2013; The Author(s).


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.


PDF Share
  1. A review of direct orthodontic bonding. Br J Orthod 1975;2:171-178.
  2. A visible light-activated direct-bonding material: an in vivo comparative study. Am J Orthod Dentofacial Orthop 1989;95:348-351.
  3. A clinical trial of an indirect bonding technique with a visible light-cured adhesive. Am J Orthod Dentofacial Orthop 1990;98:259-262.
  4. Comparative bond strength of new and reconditioned brackets and assessment of residual adhesive by light and electron microscopy. Eur J Orthod 2011;33:288-292.
  5. Clinical trials with crystal growth conditioning as an alternative to acid-etch pretreatment. Am J Orthod 1984;85:333-340.
  6. Shear bond strength of composite, glass ionomer, and acid primer adhesive. Am J Orthod Dentofacial Orthop 1999;115:24-28.
  7. Air abrasion of failed bonded metal brackets: a study of shear bond strength and surface characteristics as determined by scanning electron microscopy. Am J Orthod Dentofacial Orthop 1996;110:96-98.
  8. A critique of bond strength testing in orthodontics. Br J Orthod 1994;21:33-43.
  9. Bond strength testing-what does it mean? Int Dent J 1993;43:492-498.
  10. The effects of in-office reconditioning on the morphology of slots and bases of stainless steel brackets and on the shear/peel bond strength. J Orthod 2001;28(3): 231-236.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.