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- Title
Effects of a modified cold atmospheric plasma jet treatment on resin-dentin bonding.
- Authors
Xiao-Ming ZHU; Jian-Feng ZHOU; Heng GUO; Xiao-Fei ZHANG; Xiao-Qiang LIU; He-Ping LI; Jian-Guo TAN
- Abstract
The radio-frequency atmospheric-pressure glow discharge (RF-APGD) plasma is a novel cold atmospheric plasma (CAP) source, which has low energy characteristic. This study investigated the effect of RF-APGD plasma on the mechanical properties of dentin collagen and resin-dentin bonding. The scanning electron microscopy analysis was performed before and after a novel RF-APGD plasma and a conventional CAP treatment and a tensile test was carried out for the stiffness of dentin collagen. The microtensile resin-dentin bond strength was tested either immediately or after a 50,000-cycle thermocycling process. Dentin collagen maintained an intact structure after a 45-s RF-APGD plasma treatment, whereas even a 10-s treatment with the conventional CAP collapsed the collagen scaffold. When compared with control groups, the RF-APGD plasma treatment showed: (i) an improved stiffness of dentin collagen; (ii) a significant improvement in the bonding strength before/after artificial aging. Thus, RF-APGD plasma treatment has excellent prospects as a resin-dentin bonding protocol.
- Subjects
PLASMA jets; DENTAL resins; DENTIN; DENTAL bonding; DENTAL materials
- Publication
Dental Materials Journal, 2018, Vol 37, Issue 5, p798
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2017-314