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Harris AM, Joseph VP, Rossouw PE. Shear peel bond strengths of esthetic orthodontic brackets. Am J Orthod Dentofacial Orthop. 1992;102(3):215-9doi: 10.1016/S0889-5406(05)81055-8.
Harris, A. M., Joseph, V. P., & Rossouw, P. E. (1992). Shear peel bond strengths of esthetic orthodontic brackets. American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics, 102(3), 215-9. https://doi.org/10.1016/S0889-5406(05)81055-8
Harris, A M, et al. "Shear peel bond strengths of esthetic orthodontic brackets." American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics vol. 102,3 (1992): 215-9. doi: https://doi.org/10.1016/S0889-5406(05)81055-8
Harris AM, Joseph VP, Rossouw PE. Shear peel bond strengths of esthetic orthodontic brackets. Am J Orthod Dentofacial Orthop. 1992 Sep;102(3):215-9. doi: 10.1016/S0889-5406(05)81055-8. PMID: 1510045.
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Am J Orthod Dentofacial Orthop. 1992 Sep;102(3):215-9. doi: 10.1016/S0889-5406(05)81055-8.

Shear peel bond strengths of esthetic orthodontic brackets.

American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics

A M Harris, V P Joseph, P E Rossouw

Affiliations

  1. Department of Orthodontics, University of Stellenbosch, Tygerberg, Republic of South Africa.

PMID: 1510045 DOI: 10.1016/S0889-5406(05)81055-8

Abstract

Anecdotal reports of bracket fracture and tooth damage associated with the use of certain esthetic orthodontic brackets have been reported in the literature. With the advent of new esthetic orthodontic brackets, the need has arisen to test the claims of the manufacturers. The objectives of this study were to determine: (1) shear peel bond strengths (SPBS) of various debonded orthodontic brackets, (2) SPBS of these rebonded esthetic brackets with and without use of silane, and (3) fracture sites of all groups examined. Seventy-five noncarious human premolar teeth were randomly divided into five groups (A through E). The teeth were cleaned, stored in 70% ethyl alcohol, and mounted for testing in the Instron machine. The following brackets were bonded to the teeth with Ortho-Concise bonding resin: (A) metal brackets, (B) Silkon brackets, (C) Transcend 2000 brackets, (D) debonded Transcend 2000 brackets, and (E) debonded silanized Transcend 2000 brackets. After wet storage at 37 degrees C for 7 days, the SPBS of brackets were recorded, and fracture sites observed. There were statistically significant differences between the SPBS of metal brackets when compared with the Transcend 2000 and the Silkon brackets. These groups exhibited clinically acceptable SPBS. Debonded silanized Transcend 2000 brackets showed clinically unacceptable SPBS. Fracture sites of metal and Transcend 2000 brackets were resin-bracket, whereas Silkon brackets fracture sites were predominantly resin-enamel.

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