Application of extraoral dental radiography in disaster victim identification

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K11443
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Social dentistry
• Research Institution: Akita University
• Principal Investigator: OHTANI Maki 秋田大学, 医学(系)研究科(研究院), 助教 (30292379)
• Co-Investigator(Kenkyū-buntansha): 美作 宗太郎 秋田大学, 医学(系)研究科(研究院), 教授 (50284998)
• Co-Investigator(Renkei-kenkyūsha): OSHIMA Toru 秋田大学, 大学院医学系研究科, 講師 (70464427)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 口外撮影法 / 歯科エックス線 / 個人識別 / 大規模災害 / 開口困難 / 側斜位撮影法 / エックス線防護 / フラットパネル検出器

Outline of Final Research Achievements

Extraoral plain dental radiography with a portable and rechargeable flat panel detector (FPD) and an X-ray generator is used for personal identification in daily practice and at disaster scenes. These radiographs, taken extraorally, provide overall dental information for comparison with ante-mortem radiographs. This approach is less time-consuming; moreover, the amount of scattered radiation per case is less than that with intraoral periapical radiographs. It is possible to obtain almost all postmortem dental records of a victim through extraoral plain dental radiography by using an assistive device under the victim’s chest to prevent the teeth and jaws from touching the table and adjusting the position of the FPD to yield clear images.

Free Research Field

医歯薬学・歯学・社会系歯学・歯科法医学