根管治療過程對牙齒之阻尼性質影響

Translated title of the contribution: Effects of Endodontic Treatment on Damping Properties of Teeth

張維仁, 彭伯宇, 黃豪銘, 張凱榮, 林哲堂, 李勝揚

Research output: Contribution to journalArticle

Abstract

In the past researches, it was found that there exists a high failure rate of an endodontic teeth subjected to a traumatic load. Traditionally, this phenomenon was contributed to the reduction of teeth strength due to endodontic treatment. From biomaterials viewpoint, a teeth is a composite with viscoelastic mechanical property. However, the viscosity properties on the stress responses of an impacted tooth was ignored in biomechanical studies. In this study, we hypothesized that damping ratio of teeth in the different endodontic treatment stages, such as cleaning & shaping, RCF+IRM filling, RCF+ resin filling, and post& crown treatment. The mean values of the tested samples are 14.42±2.17%, 8.50±0.53%, 10.84±1.70%, 13.41±1.92%, and 7.89±1.70% for intact group, cleaning& shaping group, RCF+IRM filling group, RCF+resin filling, and post+ crown, respectively. In addition, significant differences were found among the groups (p<0.05). These results indicated that the transduction and distribution of the stress in teeth may change when altering the damping ratio values of the teeth. In conclusion, for fracture resistance analysis, teeth viscosity is an important properties for stress distribution and should not be ignored.
Translated title of the contributionEffects of Endodontic Treatment on Damping Properties of Teeth
Original languageTraditional Chinese
Pages (from-to)31-36
Number of pages6
Journal中華民國家庭牙醫學雜誌
Volume3
Issue number4
DOIs
Publication statusPublished - 2009

Keywords

  • endodontic treatment
  • viscoelastic property
  • damping ratio
  • vibrationalanalysis

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