論文

査読有り
2018年

Effects of three drying methods of post space dentin bonding used in a direct resin composite core build-up method

Journal of Prosthodontic Research
  • Taichi Iwashita
  • Atsushi Mine
  • Mariko Matsumoto
  • Hayaki Nakatani
  • Mami Higashi
  • Asuka Kawaguchi-Uemura
  • Tomoshige Kabetani
  • Yuko Tajiri
  • Dai Imai
  • Ryosuke Hagino
  • Jiro Miura
  • Takuya Minamino
  • Hirofumi Yatani
  • 全て表示

62
4
開始ページ
449
終了ページ
455
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.jpor.2018.04.006
出版者・発行元
Elsevier Ltd

Purpose: The purpose of this study was to evaluate drying methods for post space dentin bonding in a direct resin composite core build-up method. Methods: Experiment 1: Four root canal plastic models, having diameters of 1.0 or 1.8 mm and parallel or tapered shapes, were prepared. After drying each post space using three drying methods (air drying, paper-point drying, or ethanol drying, which involves filling the space with 99.5 vol% ethanol followed by air drying), the residual liquid in the models was weighed. Experiment 2: Thirty endodontically treated single-root teeth were dried using the above-described drying methods and filled with dual-cure resin composite. The bonded specimens were sectioned into square beams of approximately 1 mm2 for microtensile bond strength (μTBS) testing. Nine teeth were observed through transmission electron microscopy (TEM) and micro computed tomography (μCT). The weight of residual liquid and μTBS were analyzed using Scheffé multiple comparison. Results: Experiment 1: The results of air drying were significantly different from those of paper-point drying (p &lt
0.001) and ethanol drying (p &lt
0.001), and no significant difference was observed between paper-point drying and ethanol drying. Experiment 2: The μTBS significantly decreased in the order of ethanol drying, paper-point drying, and air drying (air drying/ethanol drying: p &lt
0.001, air drying/paper-point drying: p = 0.048, ethanol drying/paper-point drying: p = 0.032). TEM and μCT observation revealed a sufficient dentin/adhesive interface in the ethanol drying group. Conclusions: Ethanol drying was found to be more effective for post space dentin bonding, as compared with air drying and paper-point drying.

リンク情報
DOI
https://doi.org/10.1016/j.jpor.2018.04.006
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/29910001
ID情報
  • DOI : 10.1016/j.jpor.2018.04.006
  • ISSN : 1883-1958
  • PubMed ID : 29910001
  • SCOPUS ID : 85048448748

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