Stress Analysis of Endodontically Treated Anterior Teeth Restored with Different Types of Post Material

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概要

• 論文の詳細を見る

• 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.

• 日本歯科理工学会の論文

著者

• Nakamura Takashi

  Department of Cardiology, Saiseikai Shigaken Hospital

• YATANI Hirofumi

  Department of Fixed Prosthodontics, Okayama University Graduate School of Medicine and Dentistry

• WAKABAYASHI Kazumichi

  Department of Fixed Prosthodontics and Occlusion, Faculty of Dentistry, Osaka University

• TAKANO Naoki

  Department of Manufacturing Science, Osaka University

• Yatani Hirofumi

  Division Of Oral Maxillofacial Regeneration Graduate School Of Dentistry Osaka University

• Yatani Hirofumi

  Department Of Fixed Prosthodontics

• Yatani Hirofumi

  Department Of Oral And Maxillofacial Rehabilitation Okayama University Graduate School Of Medicine A

• Takano Naoki

  Department Of Micro System Technology College Of Science And Engineering Ritsumeikan University

• Takano Naoki

  Department Of Manufacturing Science Osaka University

• WAKI Tomonori

  Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry

• KINUTA Soichiro

  Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry

• MUTOBE Yoshihiko

  Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry

• Kinuta Souichirou

  Division Of Oral Maxillofacial Regeneration Graduate School Of Dentistry Osaka University

• Nakamura T

  Division Of Oral Maxillofacial Regeneration Graduate School Of Dentistry Osaka University

• Ohtani Takafumi

  Osaka Univ. Graduate School Of Dentistry Osaka Jpn

• Wakabayashi K

  Division Of Oral Maxillofacial Regeneration Graduate School Of Dentistry Osaka University

• Waki Tomonori

  Department Of Fixed Prosthodontics Osaka University Graduate School Of Dentistry

• Kinuta Soichiro

  Department Of Fixed Prosthodontics Osaka University Graduate School Of Dentistry

• OHYAMA Tatsuo

  Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry

• Mutobe Yoshihiko

  Department Of Fixed Prosthodontics Osaka University Graduate School Of Dentistry

• Nakamura Takashi

  Department Of Cardiology Saiseikai Shiga Hospital

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