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
› Author Affiliations


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.

Publication History

Article published online:
01 November 2021

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