지르코니아의 다양한 표면처리방법에 따른 레진시멘트와 전단결합강도 비교 연구
Comparative study of shear bond strength of resin cements and zirconia surfaces using various pre-treatment method
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초록
This study was designed to evaluate the effect of hot-HF etching surface treatment on the shear bond strength between zirconia and resin cement. Zirconia surfaces was randomly divided into 4 groups(n=10) according to different treatments (blank control; Airborne-Particle-Abrasion(APA); hot-etching with 9% HF gel(HE); combine with Airborne-Particle-Abrasion and hot-etching with HF gel(APA+HE)). After surface treatment, painted with primer (Monobond N) previously, was applied and resin cement (Multilink N) cylinders (diameter: 2.0 mm) were bonded. All specimens were subjected to shear bond strength testing using a universal testing machine with a crosshead speed of 0.7mm/min. All data were statistically analyzed using one-way analysis of variance and multiple-comparison least significant difference tests (α = 0.05). The zirconia surface of different treatment produced higher bond strength than control without surface treatment. Otherwise, no significant difference was detected between different treatment groups (P< 0.05). The shear bond strength of APA following by Hot-HF etching treatment decreased. Surface treatment of zirconia with hot-HF etching gel enhanced the surface roughness and bond strength between the zirconia and the resin cement.
Abstract
This study was designed to evaluate the effect of hot-HF etching surface treatment on the shear bond strength between zirconia and resin cement. Zirconia surfaces was randomly divided into 4 groups(n=10) according to different treatments (blank control; Airborne-Particle-Abrasion(APA); hot-etching with 9% HF gel(HE); combine with Airborne-Particle-Abrasion and hot-etching with HF gel(APA+HE)). After surface treatment, painted with primer (Monobond N) previously, was applied and resin cement (Multilink N) cylinders (diameter: 2.0 mm) were bonded. All specimens were subjected to shear bond strength testing using a universal testing machine with a crosshead speed of 0.7mm/min. All data were statistically analyzed using one-way analysis of variance and multiple-comparison least significant difference tests (α = 0.05). The zirconia surface of different treatment produced higher bond strength than control without surface treatment. Otherwise, no significant difference was detected between different treatment groups (P< 0.05). The shear bond strength of APA following by Hot-HF etching treatment decreased. Surface treatment of zirconia with hot-HF etching gel enhanced the surface roughness and bond strength between the zirconia and the resin cement.
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