バイオセラミックを応用した3種類のシーラーにおけるせん断接着強さの研究

DOI オープンアクセス
  • 田渕 康允
    神奈川県 (ブレーメン通りのたぶち歯科)
  • 牛窪 敏博
    大阪府 (医療法人晴和会U'zデンタルクリニック)
  • 赤堀 裕樹
    朝日大学歯学部口腔機能修復学講座歯科保存学分野
  • 長谷川 智哉
    朝日大学歯学部口腔機能修復学講座歯科保存学分野
  • 河野 哲
    朝日大学歯学部口腔機能修復学講座歯科保存学分野
  • 石井 宏
    東京都 (石井歯科医院)

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タイトル別名
  • A comparative study of the push-out bond strength of three types of bio-ceramic sealer

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<p>Abstract : Purpose : The aim of this study was to evaluate the push-out bond strength of three types of bio-ceramic sealer : Nishika Canal Sealer® BG, iRoot SP® and Well-Pulp ST®.</p><p> Materials and Methods : Forty human single-rooted teeth were prepared using NiTi-rotary instruments and divided into four groups (N=10) according to the root canal sealer used : Nishika Canal Sealer® BG, iRoot SP®, Well-Pulp ST® and Nishika Canal Sealer® (control). Then the roots were obturated with each sealer, and the obturated teeth were stored in an incubator for one week. One-mm-thick slices were obtained from each root sample (n=10). The bond strength of each group was measured using a push-out test. The data were analyzed statistically by one-way analysis of variance, followed by Tukey-Kramer multiple tests.</p><p> Results : The Well-Pulp ST® group showed the highest bond strength and the Nishika Canal Sealer® BG group showed the lowest. Significant differences of bond strength were found between the iRoot SP® group and each test group except the Well-Pulp ST® group (p<0.01).</p><p> Conclusion : Nishika Canal Sealer® BG showed a significantly lower push-out bond strength than iRoot SP® and Well-Pulp ST®.</p>

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