Journal of Dentistry
Volume 36, Issue 2 , Pages 125-129, February 2008

Bonding of brackets using a caries-protective adhesive patch

  • Patrick R. Schmidlin

      Affiliations

    • Clinic of Preventive Dentistry, Periodontology and Cariology, University of Zurich, Center of Dental Medicine, Plattenstrasse 11, 8032 Zürich, Switzerland
    • Corresponding Author InformationCorresponding author. Tel.: +41 44 634 3284; fax: +41 44 634 4308.
    • ,
  • M. Schätzle

      Affiliations

    • Clinic of Department of Orthodontics and Pediatric Dentistry, University of Zürich, Center of Dental Medicine, Zürich, Switzerland
    • ,
  • J. Fischer

      Affiliations

    • Clinic of Fixed and Removable Prosthodontics and Dental Material Science, University of Zurich, Center of Dental Medicine, Zurich, Switzerland
    • ,
  • T. Attin

      Affiliations

    • Clinic of Preventive Dentistry, Periodontology and Cariology, University of Zurich, Center of Dental Medicine, Plattenstrasse 11, 8032 Zürich, Switzerland

Received 22 August 2007; received in revised form 26 October 2007; accepted 3 November 2007.

Abstract 

Objectives

The purpose of this study was to assess the shear bond strength (SBS) of metal brackets when placed with a caries protective adhesive patch.

Methods

Forty stainless steel brackets (Ormco) were bonded to 40 bovine enamel samples according to the following conditioning/bonding procedures using a resin-based orthodontic luting material (Heliosit Orthodontic, N=10 per group): (A) 35% phosphoric acid (30s), rinse and dry; (B) as in A but additional placement of a prototype adhesive patch (Ivoclar Vivadent) using a bonding agent (Heliobond); (C) application of a two-step self-etch adhesive (AdheSE); (D) as in C but additional patch placement. Samples were stored at 37°C for 24h. SBS was measured with a universal testing machine with a crosshead speed of 0.5mm/min and the adhesive remnant index (ARI) was determined under a stereomicroscope (16×).

Results

Mean SBS (standard deviation) values were as follows: (A) 16.6 (6.4)MPa; (B) 12.2 (5.8); (C) 12.9 (5.0); and (D) 10.5 (4.7). Analysis of variance followed by Bonferroni correction revealed no statistically significant differences. In 2 (B) and 4 (D) specimens, complete retention of the adhesive patch was observed.

Conclusions

All treatment groups showed adequate bond strength values. The adhesive patch could therefore be applied in combination with orthodontic brackets and seal the enamel adjacent to the bracket.

Keywords: Shear bond strength, Bracket bonding, Orthodontic, Adhesion, In vitro

To access this article, please choose from the options below

Login to an existing account or Register a new account.

  • Purchase this article for 31.50 USD (You must login/register to purchase this article)

    Online access for 24 hours. The PDF version can be downloaded as your permanent record.

  • Subscribe to this title

    Get unlimited online access to this article and all other articles in this title 24/7 for one year.

  • Claim access now

    For current subscribers with Society Membership or Account Number.

  • Visit SciVerse ScienceDirect to see if you have access via your institution.
 

PII: S0300-5712(07)00237-0

doi:10.1016/j.jdent.2007.11.005

Journal of Dentistry
Volume 36, Issue 2 , Pages 125-129, February 2008

Article Tools

* Image Usage & Resolution