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CC BY-NC-ND 4.0 · European Journal of General Dentistry 2014; 3(01): 34-38
DOI: 10.4103/2278-9626.126208
Original Article

Can dentin surfaces be bonded safely with total-etch and self-etch systems?

Mehmet Akin
Department of Orthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
,
Zeliha Muge Baka
Department of Orthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
,
Zehra Ileri
Department of Orthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
,
Faruk Ayhan Basciftci
Department of Orthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
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Abstract

Objective: To assess and compare the shear bond strengths (SBSs) of orthodontic brackets bonded to enamel and dentin surfaces by using total-etching and 3 different self-etching adhesives. Materials and Methods: A total of 160 extracted mandibular incisors were randomly divided into 4 groups. In Group I, the hard tissue was etched with 37% phosphoric acid; in Group II, Transbond Plus Self Etching Primer (TSEP) system was used; in Group III, Clearfil Tri-S Bond Plus was used; and, in Group IV, AdheSE was used. Each group was divided into 2 subgroups: The enamel surfaces were conditioned in subgroup-A, and the dentin surfaces were conditioned in subgroup-B. The samples were stored in water for 24 h at 37°C and then thermocycled. The SBS in megapascals (MPa) was determined by a shear test with 0.5 mm/min crosshead speed, and failure types were classified with modified adhesive remnant index (ARI) scores. The data were analyzed with two-way analyses of variance, Tukey′s, and Chi-square tests at the 0.05 level. Results: The mean SBS value of subgroup-A in Group I was significantly higher than the mean values in the other groups (P<0.05). There were no significant differences among the SBS values in the other groups (P>0.05). Significant differences were found in the ARI between subgroup-A in Group I and the other groups (P<0.001). Conclusions: When used on the enamel, the self-etch systems did not have bond strengths as high as that in the conventional method. However, the self-etch systems can be used as successfully as the conventional method on dentin surfaces.

Keywords

Adhesive - bonding - dentin surfaces - shear bond strength


Publication History

Article published online:
01 November 2021

© 2014. European Journal of General Dentistry. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/.)

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