Korean J Orthod.  2011 Feb;41(1):16-24. 10.4041/kjod.2011.41.1.16.

Shear bond strength of ceramic brackets bonded with antimicrobial monomer-containing self-etching primer

• Kwon TH
• Kang JM
• Chang NY
• Kang KH

• KMID: 1762659
• DOI: http://doi.org/10.4041/kjod.2011.41.1.16

Abstract

OBJECTIVE
The purpose of this study was to determine (1) the shear bond strength (SBS) of an antimicrobial monomer-containing self-etching primer according to ceramic bracket types and (2) the bracket-adhesive failure mode using an adhesive remnant index (ARI).
METHODS
A total of 90 extracted human teeth were randomly divided into 6 groups. Each group consisted of one of two ceramic brackets (monocrystalline, polycrystalline) and one of three primers (Transbond XT primer, Transbond Plus SEP, Clearfil Protect Bond) with each group containing 15 specimens. The SBS was measured, and adhesive residues left on the tooth surface were assessed.
RESULTS
The SBS of polycrystalline ceramic bracket groups was significantly higher than that of the monocrystalline ceramic bracket groups (p < 0.001). The SBS of Transbond XT primer groups was significantly higher than those of Transbond Plus SEP groups and Clearfil Protect Bond groups (p < 0.001). All the groups showed bonding failures between the bracket base and adhesive.
CONCLUSIONS
The combination of a self-etching primer with a monocrystalline bracket is recommended for clinical use, considering its acceptable SBS and mode of failure.

Keyword

Shear bond strength; Antimicrobial monomer-containing self-etching primer; Ceramic bracket; Bracket-adhesive failure

MeSH Terms

Adhesives
Bisphenol A-Glycidyl Methacrylate
Ceramics
Dentin-Bonding Agents
Humans
Resin Cements
Tooth
Adhesives
Bisphenol A-Glycidyl Methacrylate
Ceramics
Dentin-Bonding Agents
Resin Cements

Figure

• 

  Fig. 1 Experimental set-up for shear bond strength measurement.

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