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In vitro bracket bond strength to acid-etched or air-abraded enamel.
Pediatr Dent. 1999 Jul-Aug; 21(4):281-4.PD

Abstract

PURPOSE

This study evaluated, in vitro, the capacity of a dentin bonding agent to improve the bond strength of orthodontic brackets using air abrasion enamel preparation.

METHODS

Each of the enamel surfaces received a different treatment prior to bonding procedures. Group 1 received acid-etched with 38% phosphoric acid for 30 seconds. Group 2 received acid-etched with 38% phosphoric acid for 30 seconds, dentin bonding agent (Scotchbond MultiPurpose) applied after rinse completed. Group 3 received abrasion-etched (particle size 50 microns, 120 psi). Group 4 received abrasion-etched, dentin bonding agent applied after etching completed. Unfilled adhesive resin (Ormco light cured sealant) was applied followed by a premolar bracket (Ormco meshed mini-twin) with adhesive (Ormco light cured adhesive) placed on the back. Shear bond strengths were measured using an INSTRON machine and the site of bond failure was determined under 3X magnification.

RESULTS

The shear bond strength obtained with a traditional acid-etch, in vitro, was not improved significantly by the use of a dentin bonding agent. Air abraded surfaces showed very low bond strengths with all treatments.

CONCLUSIONS

Tested in vitro, air-abraded surfaces provide clinically unacceptable bond strength when compared to acid-etched enamel surfaces.

Authors+Show Affiliations

University of California, Los Angeles, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

10436484

Citation

Mulcahey, K, et al. "In Vitro Bracket Bond Strength to Acid-etched or Air-abraded Enamel." Pediatric Dentistry, vol. 21, no. 4, 1999, pp. 281-4.
Mulcahey K, Caputo AA, Duperon DF. In vitro bracket bond strength to acid-etched or air-abraded enamel. Pediatr Dent. 1999;21(4):281-4.
Mulcahey, K., Caputo, A. A., & Duperon, D. F. (1999). In vitro bracket bond strength to acid-etched or air-abraded enamel. Pediatric Dentistry, 21(4), 281-4.
Mulcahey K, Caputo AA, Duperon DF. In Vitro Bracket Bond Strength to Acid-etched or Air-abraded Enamel. Pediatr Dent. 1999 Jul-Aug;21(4):281-4. PubMed PMID: 10436484.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - In vitro bracket bond strength to acid-etched or air-abraded enamel. AU - Mulcahey,K, AU - Caputo,A A, AU - Duperon,D F, PY - 1999/8/7/pubmed PY - 1999/8/7/medline PY - 1999/8/7/entrez SP - 281 EP - 4 JF - Pediatric dentistry JO - Pediatr Dent VL - 21 IS - 4 N2 - PURPOSE: This study evaluated, in vitro, the capacity of a dentin bonding agent to improve the bond strength of orthodontic brackets using air abrasion enamel preparation. METHODS: Each of the enamel surfaces received a different treatment prior to bonding procedures. Group 1 received acid-etched with 38% phosphoric acid for 30 seconds. Group 2 received acid-etched with 38% phosphoric acid for 30 seconds, dentin bonding agent (Scotchbond MultiPurpose) applied after rinse completed. Group 3 received abrasion-etched (particle size 50 microns, 120 psi). Group 4 received abrasion-etched, dentin bonding agent applied after etching completed. Unfilled adhesive resin (Ormco light cured sealant) was applied followed by a premolar bracket (Ormco meshed mini-twin) with adhesive (Ormco light cured adhesive) placed on the back. Shear bond strengths were measured using an INSTRON machine and the site of bond failure was determined under 3X magnification. RESULTS: The shear bond strength obtained with a traditional acid-etch, in vitro, was not improved significantly by the use of a dentin bonding agent. Air abraded surfaces showed very low bond strengths with all treatments. CONCLUSIONS: Tested in vitro, air-abraded surfaces provide clinically unacceptable bond strength when compared to acid-etched enamel surfaces. SN - 0164-1263 UR - https://www.unboundmedicine.com/medline/citation/10436484/In_vitro_bracket_bond_strength_to_acid_etched_or_air_abraded_enamel_ DB - PRIME DP - Unbound Medicine ER -