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Randomized Controlled Trial
. 2011 May;139(5):650-6.
doi: 10.1016/j.ajodo.2009.06.038.

Effect of antibacterial monomer-containing adhesive on enamel demineralization around orthodontic brackets: an in-vivo study

Tancan Uysal  1 , Mihri Amasyali, Suat Ozcan, Alp Erdin Koyuturk, Deniz Sagdic
Affiliations
Randomized Controlled Trial

Effect of antibacterial monomer-containing adhesive on enamel demineralization around orthodontic brackets: an in-vivo study

Tancan Uysal et al. Am J Orthod Dentofacial Orthop. 2011 May.

Abstract

Introduction: The aims of this study were to evaluate the effect of an antibacterial monomer-containing self-etching adhesive in reducing enamel demineralization around orthodontic brackets in vivo and to compare it with the conventional adhesive system quantitatively.

Methods: Fourteen orthodontic patients were randomly divided into 2 equal groups; they received brackets fitted to all their teeth, bonded with either Clearfil Protect Bond (Kuraray Medical, Okayama, Japan) (experimental group) or Transbond XT (3M Unitek, Monrovia, Calif) (control group). Block randomization to obtain equal numbers in each group was used. After 30 days, all first premolars were extracted with orthodontic indications and longitudinally sectioned. Demineralization was assessed by cross-sectional microhardness. Determinations were made at the bracket edge cementing limits and at occlusal and cervical points 100 and 200 μm away from the edge. In all of these positions, 6 indentations were made at depths of 10 to 90 μm from the enamel surface. Analysis of variance (ANOVA) and the Tukey post-hoc test were used. The statistical significance level was set at P <0.05.

Results: ANOVA showed statistically significant differences for adhesive type, position, depth, and their interactions (P <0.05). The multiple comparison test showed that the antibacterial monomer-containing adhesive was significantly more efficient than the conventional adhesive system, reducing enamel demineralization in almost all evaluations (P <0.05).

Conclusions: The results indicated that using antibacterial monomer-containing adhesive for bonding orthodontic brackets successfully inhibited caries in vivo. This cariostatic effect was localized at the area around the brackets and was significant after 30 days.

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