Computed Tomographic Evaluation of Bone Quality of the Mandible Reconstructed by Particular Cellular Bone and Marrow Combined with Platelet Rich Plasma

• Iwamoto Muneharu

  Department of Oral and Maxillofacial Surgery, School of Medicine, Tokyo Medical University

• Matsuo Akira

  Department of Oral and Maxillofacial Surgery, School of Medicine, Tokyo Medical University

• Kato Noriko

  Department of Oral and Maxillofacial Surgery, School of Medicine, Tokyo Medical University

• Takeuchi Sawako

  Department of Oral and Maxillofacial Surgery, School of Medicine, Tokyo Medical University

• Takahashi Hidetoshi

  Department of Oral and Maxillofacial Surgery, School of Medicine, Tokyo Medical University

• Hojo Satoru

  Department of Maxillofacial Rehabilitation, Kanagawa Dental College

• Chiba Hiroshige

  Department of Oral and Maxillofacial Surgery, School of Medicine, Tokyo Medical University

抄録

Concerning the bone structures of the mandible reconstructed by particular cellular bone and marrow (PCBM), platelet rich plasma (PRP) and tray, we have examined the possibility of implant insertion by clarifying the morphological conditions in each compact and cancellous bone on computed tomography (CT), and by observing the differences in their CT values.<br>Using the computer software program Sim Plant (Materialize Dental, Leuven, Belgium), we morphologically observed 6 cases of implant inserted area after mandibular reconstruction and 11 cases of native bone, and examined the differences in their CT values. The osseointegration rate of each inserted implant was also evaluated.<br>Compared with the native bone group, the PCBM reconstruction group had generally thin compact bone. In the over-3cm-length PCBM reconstruction group, the average CT value was 259.7 ± 94.4 HU (n = 3) in the cancellous bone, whereas in the native bone group, the average CT value was 528.9 ± 140.1 HU (n = 10). Therefore, the PCBM reconstruction group showed significantly lower CT value than the native bone group. However, in the under-3cm-length group, the PCBM reconstruction group showed no significant difference compared with the native bone group. The osseointegration rate of the inserted implants almost 6 months after insertion was 100% in the PCBM reconstruction group and 94.1% in the native bone group.<br>Although the PCBM reconstructed bone had thinner cortical bone and showed lower CT value compared with the native bone, implant insertion was possible.

収録刊行物

• Oral Science International

  Oral Science International 6 (2), 63-72, 2009

  特定非営利活動法人　日本口腔科学会

キーワード

• mandibular reconstruction
• platelet rich plasma (PRP)
• particulate cancellous bone and marrow (PCBM)
• bone quality
• Hounsfield unit (HU)

詳細情報

• CRID: 1390001205223968768
• NII論文ID: 130004503860
• NII論文ID: 10027107547
• NII書誌ID: AA1196972X
• DOI: 10.11277/osi.6.63
• ISSN: 18814204
• ISSN: 13488643
• Web Site: https://search.jamas.or.jp/link/ui/2010179234
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可