2015年10月
Ultrasonic measurement of the effects of light irradiation and presence of water on the polymerization of self-adhesive resin cement
EUROPEAN JOURNAL OF ORAL SCIENCES
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- 巻
- 123
- 号
- 5
- 開始ページ
- 369
- 終了ページ
- 374
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1111/eos.12205
- 出版者・発行元
- WILEY-BLACKWELL
Self-adhesive resin cements are useful in restorations because they reduce the number of clinical steps involved in the restoration process. This study evaluated, using ultrasonic measurements, the influence of light irradiation and the presence of water on the polymerization behavior and elastic modulus of a self-adhesive resin cement. A self-adhesive resin cement (RelyX Unicem 2 Automix) or a resin cement (RelyX ARC) was inserted into a transparent mold on a sample stage, and the presence of water and effect of light-irradiation were evaluated. The transit time of a sonic wave through the cement disk was divided by the specimen thickness to obtain the sonic velocity, and longitudinal and shear waves were used to determine the elastic modulus. When the resin cements were light-irradiated, the sonic velocity rapidly increased and plateaued at 2,500-2,700ms(-1). When the cements were not irradiated, the rates of increase in the sonic velocity were reduced. When water was applied to the sample stage, the sonic velocity was reduced. The elastic modulus values of the specimens ranged from 9.9 to 15.9GPa after 24h. The polymerization behavior of self-adhesive resin cements is affected by the polymerization mode and the presence of water.
- リンク情報
- ID情報
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- DOI : 10.1111/eos.12205
- ISSN : 0909-8836
- eISSN : 1600-0722
- Web of Science ID : WOS:000361490800010