Effect of different cleaning methods on bond strength and surface wettability of high translucency zirconia

doi:10.19439/j.sjos.2024.01.006

Abstract

Abstract: PURPOSE: To study the effect of different cleaning methods on the shear bond strength of self-adhesive resin cement to saliva-contaminated high translucency zirconia and surface wettability. METHODS: Eighty zirconia specimens were randomly divided into 5 groups (n=16), i.e., control group(not contaminated), 75% ethanol group,cleaning paste group,airborne-particle abrasion group, and atmospheric pressure cold plasma group. The contact angles was measured, shear bond strength were examined, and fracture types were determined. SPSS 26.0 software package was used for statistical analysis of the data. RESULTS: The atmospheric pressure cold plasma group produced the lowest contact angle(P<0.05). The shear bond strength of the airborne-particle abrasion group, the cleaning paste group and the atmospheric pressure cold plasma group respectively were similar to the control group without significant difference(P>0.05), while those were significantly higher than 75% ethanol group(P<0.05). The mixed fracture mode of the atmospheric pressure cold plasma group evidently increased. CONCLUSIONS: Airborne-particle abrasion, cleaning paste and atmospheric pressure cold plasma overcome the effects of saliva contamination, producing the shear bond strength to zirconia similar to the control group. The atmospheric pressure cold plasma improves hydrophilicity of high translucency zirconia significantly.

Key words: Zirconia, Saliva contamination, Atmospheric pressure cold plasma, Surface wettability, Shear bond strength

CLC Number:

R783.1

JIAO Ji-lan, YE Xin-yi, DENG Lu, JIANG Hui, LI Xiao-xia, ZENG Li-wei, TAN Jian-guo. Effect of different cleaning methods on bond strength and surface wettability of high translucency zirconia[J]. Shanghai Journal of Stomatology, 2024, 33(1): 36-39.

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