Application of trabecular bone references in diagnostic imaging of dental implant treatment

• Project/Area Number: 15K11231
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Dental engineering/Regenerative dentistry
• Research Institution: Aichi Gakuin University
• Principal Investigator: NAITOH Munetaka 愛知学院大学, 歯学部, 准教授 (20167539)
• Co-Investigator(Kenkyū-buntansha): 有地 榮一郎 愛知学院大学, 歯学部, 教授 (00150459)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 歯科インプラント治療 / 歯科用コーンビームCT / 骨密度 / 顎骨

Outline of Final Research Achievements

In this investigation it was evaluated three kinds of trabecular bone references to assess a cancellous bone density of the jaws for cone-beam computed tomography (CT) for dental use.
Black and white binary images were produced in trabecular bone references fabricated using micro-streolithography and used hydroxyapatite (HA) block with 4 levels of porosity. The mean rate of white pixels to ROI pixels was differed with a substance rate of their references. So, their references were difficult to apply assessment of a cancellous bone density in the jaws.The acrylic resin with radiopaque fillers developed on a basis of CT values (350 H.U.) might be assessed a cancellous bone density of the jaws in preoperative diagnostic imaging using cone-beam CT of dental implant treatment.

Research Products

• [Journal Article] Ｘ線造影性レジン「ボーンシェードレジン CT350」 (2015)
  • Author(s): 内藤宗孝，川澄勝久，宮前真，有地榮一郎，他
  • Journal Title: DENTAL DIAMOND Volume: 40 Pages: 152-155
• [Presentation] 画像診断における顎骨の評価 (2017)
  • Author(s): 内藤宗孝
  • Organizer: 第46回日本口腔インプラント学会学術大会
  • Place of Presentation: 名古屋国際会議場（愛知県、名古屋市）
  • Year and Date: 2017-09-18
  • Invited
• [Presentation] 術前画像診断におけるエックス線造影性レジンを用いた診断用ステントの応用 (2015)
  • Author(s): 内藤宗孝，西山航，大橋靖史，泉雅浩，有地榮一郎
  • Organizer: 第36回本口腔インプラント学会中部支部学術大会
  • Place of Presentation: ウィンクあいち（名古屋）
  • Year and Date: 2015-11-15