Association of cortical shape of the mandible on panoramic radiographs with mandibular trabecular bone structure in Japanese adults

• Project/Area Number: 15K20394
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Pathobiological dentistry/Dental radiology
• Research Institution: Matsumoto Dental University
• Principal Investigator: SUGINO Noriyuki 松本歯科大学, 歯学部, 講師 (10460445)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 骨粗鬆症 / 顎骨海綿骨 / パノラマＸ線写真 / 歯科用コーンビームＣＴ / パノラマX線写真 / 歯科用コーンビームCT / コーンビームCT

Outline of Final Research Achievements

Number of teeth tended to be associated with cortical shape of the mandible on panoramic radiographs. There was no significant differences in the whole bone volume among 3 cortical shapes (P=0.093). Subjects with severely eroded cortex had significantly larger trabecular bone volume (P=0.115) and fractal dimension (P=0.09) than those with normal and moderately eroded cortices. Trabecular bone density tended to be larger in subject with eroded cortex than the others (P=0.085). However, trabecular bone density increased with age (r=0.26, P=0.042). In this study, trabecular bone of the basal portion of the mandible increased with age, although cortical bone decreased. These results suggested that trabecular bone density and complexity of the mandible may increase with the progression of cortical bone porosity in the elderly.

Research Products

• [Journal Article] 当科の日常臨床におけるパノラマX線写真を用いた骨粗鬆症スクリーニングのための下顎骨下縁皮質骨形態分類の有用性 (2017)
  • Author(s): 杉野紀幸，内田啓一，望月慎恭，黒岩博子，長内 秀，山田真一郎，藤木知一，北村 豊，田口 明
  • Journal Title: 歯科放射線 Volume: 57 Pages: 75-80
  • Peer Reviewed
• [Journal Article] Associations of self-reported height loss and kyphosis with vertebral fractures in Japanese women 60 years and older: a cross-sectional survey (2016)
  • Author(s): Kamimura M, Nakamura Y, Sugino N, Uchiyama S, Komatsu M, Ikegami S, Kato H, Taguchi A
  • Journal Title: Sci Rep Volume: - Issue: 1
  • DOI: 10.1038/srep29199
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Delayed wound healing after tooth extraction and self-reported kyphosis in Japanese men and women (2016)
  • Author(s): Taguchi A, Kamimura M, Nakamura Y, Sugino N, Ichise A, Maezumi H, Fukuzawa K, Ashizawa R, Takahara K, Gushiken S, Mukaiyama K, Ikegami S, Uchiyama S, Kato H
  • Journal Title: Sci Rep Volume: - Issue: 1
  • DOI: 10.1038/srep36309
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Association of self-reported height loss and kyphosis with loss of teeth in Japanese elderly. (2016)
  • Author(s): 2.Taguchi A, Kamimura M, Sugino N, Uchida K, Kitamura Y, Ikegami S, Nakamura Y, Uchiyama S, Kato H
  • Journal Title: ORAL HEALTH AND DENTAL MANAGEMENT Volume: 15 Pages: 69-74
  • NAID: 120005854474
  • Peer Reviewed / Open Access
• [Journal Article] Panoramic radiography measurements, osteoporosis diagnoses, and fractures in Japanese men and women (2015)
  • Author(s): Yamada S, Uchida K, Iwamoto Y, Sugino N, Yoshinari N, Kagami H, Taguchi A
  • Journal Title: Ｏｒａｌ Ｄｉｓｅａｓｅｓ Volume: 21 Issue: 3 Pages: 335-341
  • DOI: 10.1111/odi.12282
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] Panoramic radiography measure for identifying asymptomatic osteoporosis in radiology clinic (2017)
  • Author(s): N Sugino, K Uchida, N Mochizuki, S Yamada, H Osanai, H Kuroiwa, T Fujiki, Y Kitamura, A Taguchi
  • Organizer: 31st International Association for Dental Research, South-East Asia Division (IADR-SEA)
  • Int'l Joint Research
• [Presentation] 歯科治療患者が骨粗鬆症治療中であるリスクを歯科用パノラマエックス線写真により推測可能か？ (2017)
  • Author(s): 田口 明，山田真一郎，望月慎恭，長内 秀，杉野紀幸，黒岩博子，藤木知一，内田啓一
  • Organizer: 第19回日本骨粗鬆症学会
• [Presentation] 骨粗鬆症オートスクリーニング支援システムNEOOSTEOの概要 (2017)
  • Author(s): 内田啓一，杉野紀幸，富田美穂子，石原裕一，吉成伸夫，田口 明
  • Organizer: 第10回日本総合歯科学会 学術大会総会
• [Presentation] 閉経後骨粗鬆症患者スクリーニングにおけるパノラマエックス線写真上の視覚的歯槽骨骨梁分類の有用性 (2017)
  • Author(s): 田口 明，杉野紀幸，山田真一郎，長内 秀，黒岩博子，藤木知一，内田啓一
  • Organizer: 日本歯科放射線学会第22回臨床画像大会
• [Presentation] Association of cortical shape of the mandible on panoramic radiographs with mandibular trabecular bone structure in Japanese adults (2017)
  • Author(s): N Sugino, N Mochizuki, K Uchida, H Kuroiwa, Y kitamura, A Taguchi
  • Organizer: The 65th Annual Meeting of Japanese Association for Dental Research
  • Int'l Joint Research
• [Presentation] Associations of number of teeth present with dental panoramic radiography measure in Japanese men and women 40 years and older: a cross-sectional study. (2016)
  • Author(s): Tagcuhi A, Takahashi M, Uchida K, Yamada S, Sugino N, Higashi Y, Yamada K
  • Organizer: International Congress of Osteoporosis 2016
  • Place of Presentation: Grand Hilton（Seoul Korea）
  • Year and Date: 2016-11-12
• [Presentation] デジタルパノラマエックス線写真による骨粗鬆症スクリーニング：NEOOSTEOの有用性 (2016)
  • Author(s): 田口 明、杉野紀幸、内田啓一、服部政幸、中元 崇
  • Organizer: 日本歯科放射線学会 第21回臨床画像大会
  • Place of Presentation: 学術総合センター（東京都千代田区）
  • Year and Date: 2016-10-28
• [Presentation] 当科の日常臨床におけるパノラマエックス線写真の骨粗鬆症スクリーニングのための下顎骨皮質骨形態指標の有用性 (2015)
  • Author(s): 望月慎恭，内田啓一，山田真一郎，長内 秀，杉野紀幸，黒岩博子，藤木知一, 田口 明
  • Organizer: 日本歯科放射線学会 第20回臨床画像大会
  • Place of Presentation: 九州大学 大学院歯学研究院（福岡県福岡市）
  • Year and Date: 2015-10-23
• [Presentation] 自己申告による腰の曲がりと抜歯後治癒不全経験との関係 (2015)
  • Author(s): 田口 明，上村幹男，杉野紀幸，内田啓一，池上章太，中村幸男，内山茂晴，加藤博之
  • Organizer: 日本骨粗鬆症学会 第17回大会
  • Place of Presentation: 広島国際会議場（広島県広島市）
  • Year and Date: 2015-09-17