Shear bond strength of orthodontic brackets with 3 self-etch adhesives.
BACKGROUND
The purpose of this study was to compare shear bond strength and mode of failure of brackets bonded with 3 self-etching products.


METHODS
The products tested were (1) a recently developed, modified self-etching, 1-step adhesive system (Adper Prompt L-Pop Self Etch Adhesive, 3M, St Paul, Minn); (2) a new fluoride-releasing, antibacterial, self-etching adhesive system (Clearfil Protect Bond, Kuraray, Osaka, Japan); and (3) a fluoride-releasing, self-etching adhesive system (Transbond Plus Self Etching Primer, 3M). Thirty-six defect-free premolars were randomly divided into 3 groups (n = 12 each), and metal brackets were bonded according to the manufacturer's instructions. Brackets were debonded in shear on a universal testing machine with a crosshead speed of 1 mm per minute.


RESULTS
One-way ANOVA showed a statistically significant (P < .001) difference between groups. Group 2 had the highest shear bond strength. The difference between groups 1 and 3 was not statistically significant. The Kruskal-Wallis test showed no significant differences in the ARI scores (P = .595; P < .05).


CONCLUSIONS
The fluoride-releasing, antibacterial, self-etching adhesive system, Clearfil Protect Bond, produced greater shear bond strength than the other 2 products tested and could be considered for clinical use.
Arhun
Neslihan
N
Department of Conservative Dentistry, Faculty of Dentistry, Baskent University, Ankara, Turkey. neslihan@baskent.edu.tr
Arman
Ayça
A
Sesen
Cagla
C
Karabulut
Erdem
E
Korkmaz
Yonca
Y
Gokalp
Saadet
S
D000134:Acid Etching, Dental / Q000379:methods*; D000704:Analysis of Variance; D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate; D001840:Dental Bonding; D003799:Dental Stress Analysis; D017220:Dentin-Bonding Agents; D006801:Humans; D008422:Materials Testing; D010755:Organophosphates; D019279:Resin Cements; D033081:Shear Strength; D018709:Statistics, Nonparametric
C489661:Adper Prompt Self-Etch; C503075:Clearfil Protect Bond; D017220:Dentin-Bonding Agents; D010755:Organophosphates; C408584:Prompt L-Pop; D019279:Resin Cements; C429625:Transbond Plus Self-Etching Primer; C477790:Transbond XT; D017438:Bisphenol A-Glycidyl Methacrylate