Shear bond strength evaluation of chemically-cured and light-cured orthodontic adhesives after enamel deproteinization with 5.25% sodium hypochlorite

1st Physics and Technologies in Medicine and Dentistry Symposium

物理学;医药卫生

Salim, J.C.^1 ; Krisnawati^1 ; Purbiati, M.^1

Department of Orthodontics, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia^1

关键词: Acid etching;    Deproteinization;    Four-group;    Orthodontic adhesive;    Shear bond strengths;    Sodium hypochlorites;    Statistically significant difference;    Universal testing machines;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/884/1/012082/pdf
DOI  :  10.1088/1742-6596/884/1/012082

学科分类：卫生学

来源: IOP

【 摘 要 】

This study aimed to assess the effect of enamel deproteinization with 5.25% sodium hypochlorite (NaOCl) before etching on the shear bond strength (SBS) of Unite (UN; 3M Unitek) and Xihu-BIOM adhesive (XB). Fifty-two maxillary first premolars were divided into four groups: (1) UN and (2) XB according to manufacturer's recommendation and (3) UN and (4) XB deproteinized with 5.25% NaOCl. Brackets were bonded, and a mechanical test was performed using a universal testing machine. The mean SBS value for groups A1, A2, B1, and B2 was 13.51 ±2.552, 14.36 ± 2.902, 16.43 ± 2.615, and 13.05 ± 2.348 MPa, respectively. A statistically significant difference in SBSs was observed between chemically cured groups and between group B (p0.05). NaOCl enamel deproteinization before acid etching has a significant effect on the SBS of Unite adhesive, but not on that of the Xihu-BIOM adhesive. Furthermore, a significant difference in the SBS of Unite and Xihu-BIOM adhesives within the enamel deproteinization group was observed in this study.