期刊
DENTAL MATERIALS JOURNAL
卷 28, 期 6, 页码 686-692出版社
JAPANESE SOC DENTAL MATERIALS DEVICES
DOI: 10.4012/dmj.28.686
关键词
Fiber-reinforced composite post; Plasma treatment; Tensile-shear bond strength
The aim of this Study was to evaluate the effects of plasma treatment on adhesion between fiber-reinforced posts and a composite core material. Two types of posts, niethacrylate-based (FRC Postee) and epoxy resin-based (DT Light-Post), were treated with oxygen plasma (O-2), argon plasma (Ar), nitrogen plasma (N-2), or helium mixed with nitrogen plasma (He+N-2) using a radio-frequency generator before bonding to a methacrylate-based composite. Pull-out tests were performed using a universal testing machine. Surface roughness of each group was evaluated using a profilometer. On tensile-shear bond strength, statistical analysis revealed that the type of post, type of plasma treatment, and their interaction significantly influenced the results (p<0.05). Tukey's test revealed significant differences in tensile-shear bond strength between the control and other plasma treatment groups (p<0.05). On surface roughness, Tukey's test revealed significant differences between the control group and the Ar group (p<0.05) with DT Light Post. Plasma treatment appeared to increase the tensile-shear bond strength between post and composite.
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