Promotion of adhesive penetration and resin bond strength to dentin using non-thermal atmospheric pressure plasma
- Authors
- Kim, Jae-Hoon; Han, Geum-Jun; Kim, Chang-Keun; Oh, Kyu-Hwan; Chung, Sung-No; Chun, Bae-Hyeock; Cho, Byeong-Hoon
- Issue Date
- Feb-2016
- Publisher
- WILEY-BLACKWELL
- Keywords
- adhesives; bond strength; micro-Raman spectroscopy; scanning electron microscopy
- Citation
- EUROPEAN JOURNAL OF ORAL SCIENCES, v.124, no.1, pp 89 - 95
- Pages
- 7
- Journal Title
- EUROPEAN JOURNAL OF ORAL SCIENCES
- Volume
- 124
- Number
- 1
- Start Page
- 89
- End Page
- 95
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/7298
- DOI
- 10.1111/eos.12246
- ISSN
- 0909-8836
1600-0722
- Abstract
- Non-thermal atmospheric pressure plasmas (NT-APPs) have been shown to improve the bond strength of resin composites to demineralized dentin surfaces. Based on a wet-bonding philosophy, it is believed that a rewetting procedure is necessary after treatment with NT-APP because of its air-drying effect. This study investigated the effect of plasma-drying' on the bond strength of an etch-and-rinse adhesive to dentin by comparison with the wet-bonding technique. Dentin surfaces of human third molars were acid-etched and divided into four groups according to the adhesion procedure: wet bonding, plasma-drying, plasma-drying/rewetting, and dry bonding. In plasma treatment groups, the demineralized dentin surfaces were treated with a plasma plume generated using a pencil-type low-power plasma torch. After the adhesion procedures, resin composite/dentin-bonded specimens were subjected to a microtensile bond-strength test. The hybrid layer formation was characterized by micro-Raman spectroscopy and scanning electron microscopy. The plasma-drying group presented significantly higher bond strength than the wet-bonding and dry-bonding groups. Micro-Raman spectral analysis indicated that plasma-drying improved the penetration and polymerization efficacy of the adhesive. Plasma-drying could be a promising method to control the moisture of demineralized dentin surfaces and improve the penetration of adhesive and the mechanical property of the adhesive/dentin interface.
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