Stress analysis of endodontically treated anterior teeth restored with different types of post material

Takashi Nakamura, Tatsuo Ohyama, Tomonori Waki, Soichiro Kinuta, Kazumichi Wakabayashi, Yoshihiko Mutobe, Naoki Takano, Hirofumi Yatani

研究成果: Article査読

62 被引用数 (Scopus)

抄録

Finite element analysis was performed to evaluate stress distribution in maxillary central incisors treated endodontically and restored with a post and an all-ceramic crown. Tensile stress at tooth root was analyzed using two-dimensional finite element models with different post diameters and lengths. One post length was 1/3 of the root (short), while the other was 2/3 of the root (long); one post diameter was 1/3 of the root (narrow), while the other was 2/3 of the root (wide). The following combinations were used for posts and cores: gold alloy cast post and core, commercial stainless steel post and resin core, and fiber post and resin core. Results showed that the fiber post produced less stress on the root dentin around the post tip than did the metal posts. This finding thus suggested that to reduce the stresses that cause root fracture, a long, thin fiber post should be used.

本文言語English
ページ(範囲)145-150
ページ数6
ジャーナルDental Materials Journal
25
1
DOI
出版ステータスPublished - 2006 3
外部発表はい

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 歯科学(全般)

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