Biomechanical analysis in the internal structure of jaw bone for prevention of dental implant failure

2009 Fiscal Year Final Research Report

• Project/Area Number: 19592259
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: 補綴理工系歯学
• Research Institution: Tokyo Dental College
• Principal Investigator: IDE Yoshinobu Tokyo Dental College, 歯学部, 教授 (20103377)
• Co-Investigator(Kenkyū-buntansha): YAJIMA Yasutomo 東京歯科大学, 歯学部, 教授 (10183667)
• Project Period (FY): 2007 – 2009
• Keywords: 歯科インプラント学

Research Abstract

To evaluate the sites for dental implant placement and prevent several implant failure, we used micro-CT for 3D measurement and biomechanical analysis to observe anatomical constructions and to clarify the influence of functional pressure on the internal structure of the jaw bone through implant. The 3D-reconstructed images revealed that jaw bone had a complex structure, and care must be exercised when inserting dental implants. In the finite element analysis, we visualized load transfer paths, and the results suggested that trabecular bone realignment around an implant is thought to play an important role in supporting the pressure. And examination of the structural properties of cancellous bone including stress analysis would be useful in predicting acceptable loads of endosseous implants.

Research Products

• [Journal Article] Three-dimensional analysis of pulp chambers in mandibular first deciduous molars. (2010)
  • Author(s): Agematsu, H., Ohnishi, M., Matsunaga, S., Saka, H., Nakahara, K., Ide, Y.
  • Journal Title: Pediatric Dental Journal 20(1) Pages: 1-6
  • Peer Reviewed
• [Journal Article] Age estimation based on three-dimensional measurement of mandibular central incisors in Japanese. (2009)
  • Author(s): Someda, H., Saka, H., Matsunaga, S., Ide, Y., Nakahara, K., Hirata, S., Hashimoto, M.
  • Journal Title: Forensic Science International 185(1-3) Pages: 110-114
  • Peer Reviewed
• [Journal Article] Three-dimensional analysis of the internal structure of the mandibular condyle in dentulous and edentulous jaws using micro-CT. (2009)
  • Author(s): Sugisaki, M., Agematsu, H., Matsunaga, S., Saka, H., Ide, Y.
  • Journal Title: Cranio 27(2) Pages: 78-87
  • Peer Reviewed
• [Journal Article] Biomechanical role of peri-implant trabecular structures during vertical loading. (2009)
  • Author(s): Ohashi, T., Matsunaga, S., Nakahara, K., Abe, S., Ide, Y., Tamatsu, Y., Takano, N.
  • Journal Title: Clinical Oral Investigations (in press)
  • Peer Reviewed
• [Journal Article] Biomechanical role of peri-implant cancellous bone architecture. (2009)
  • Author(s): Matsunaga, S., Shirakura, Y., Ohashi, T., Nakahara, K., Tamatsu, Y., Takano, N., Ide, Y.
  • Journal Title: The International Journal of Prosthodontics (in press)
  • Peer Reviewed
• [Journal Article] The morphological analysis of root resorption of mandibular primary canines and their relationship with the position of successive permanent teeth using Micro-CT. (2009)
  • Author(s): Lu, WY., Saka, H., Tamatsu, Y., Nakahara, K., Agematsu, H., Ide, Y.
  • Journal Title: Pediatric Dental Journal 19(2) Pages: 187-195
  • Peer Reviewed
• [Journal Article] The influence of bite force on the internal structure of the mandible through implant. (2008)
  • Author(s): Matsunaga, S., Okudera, H., Abe, S., Tamatsu, Y., Hashimoto, M., Ide, Y.
  • Journal Title: Journal of Oral Biosciences 50(3) Pages: 194-199
  • Peer Reviewed
• [Journal Article] Root resorption of maxillary primary incisors in relation to position of successive permanent incisors by Micro-CT. (2008)
  • Author(s): Hiraide, Y., Saka, H., Tamatsu, Y., Usami, A., Yanagisawa, N., Ide, Y.
  • Journal Title: Pediatric Dental Journal 18(1) Pages: 15-23
  • Peer Reviewed
• [Presentation] インプラント治療に必要な顎骨の構造 (2009)
  • Author(s): 井出吉信
  • Organizer: 第39回日本口腔インプラント学会総会・学術大会, 日本口腔インプラント学会誌
  • Year and Date: 20090000