Comparison of changes in occlusal state of implant and pressure displacement data in minority missing teeth

• Project/Area Number: 26462934
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Prosthodontics/ Dental materials science and
• Research Institution: Showa University
• Principal Investigator: Keiichiro Uchida 昭和大学, 歯学部, 助教 (30384332)
• Co-Investigator(Kenkyū-buntansha): 青柳 佳奈 昭和大学, 歯学部, 兼任講師 (10709760) ; 岡田 征彦 昭和大学, 歯学部, 兼任講師 (50756161) ; 佐藤 裕二 昭和大学, 歯学部, 教授 (70187251) ; 北川 昇 昭和大学, 歯学部, 准教授 (80177831) ; 今村 嘉希 昭和大学, 歯学部, 兼任講師 (80710186) ; 関谷 弥千 昭和大学, 歯学部, 助教 (40611968)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2016: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000); Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: インプラント / 咬合 / 被圧変位量 / 歯科補綴学一般

Outline of Final Research Achievements

In this study, changes of occlusion in the entire dentition before, after and after implant treatment of the mandibular first molar were examined using an electromyograph and an occlusal force measuring film, a newly developed dental occlusion By measuring the occlusion state using a contact analyzer, we compare the obtained data with the graph of pressure displacement characteristics to clarify the occlusion state of the implant. From the results of the study, even if the occlusal load of the implant part was smaller than that of the natural tooth, no significant difference was observed in the occlusal contact between the adjacent teeth. Immediately after wearing the implant part and 3 months after wearing, no significant difference was observed.

Research Products

• [Journal Article] Occlusal status of implant superstructures at mandibular first molar immediately after setting (2015)
  • Author(s): Okada, Y., Sato, Y., Kitagawa, N., Uchida, K., Osawa, T., Imamura, Y. and Terazawa, M.
  • Journal Title: International Journal of Implant Dentistry Volume: 1：16 Issue: 1 Pages: 1-9
  • DOI: 10.1186/s40729-015-0016-0
  • Peer Reviewed / Open Access
• [Presentation] 臼歯部における下顎第一大臼歯部インプラント補綴装置の咬合状態 (2017)
  • Author(s): 岡田征彦, 佐藤裕二, 北川 昇, 大澤淡紅子, 寺澤真祐美
  • Organizer: 日本口腔インプラント学会第36回関東・甲信越支部学術大会
  • Place of Presentation: 東京
  • Year and Date: 2017-02-12
• [Presentation] Time-dependent changes of occlusal status in implant-supported prosthesis (2016)
  • Author(s): 寺澤真祐美, 佐藤裕二, 北川 昇, 大澤淡紅子, 今村 嘉希, 岡田 征彦
  • Organizer: 40th Annual Meeting of the European Prosthodontic Association
  • Place of Presentation: Halle, Germany
  • Year and Date: 2016-09-15
  • Int'l Joint Research
• [Presentation] 装着直後から3カ月後の下顎第一大臼歯部インプラント補綴装置の咬合状態の変化 (2015)
  • Author(s): 寺澤真祐美，佐藤裕二，大澤淡紅子，今村嘉希，岡田征彦
  • Organizer: 日本口腔インプラント学会
  • Place of Presentation: 第45回日本口腔インプラント学会学術大会，岡山
  • Year and Date: 2015-09-23
• [Presentation] 下顎第一大臼歯部インプラント補綴装置装着直後の咬合状態 (2014)
  • Author(s): 岡田征彦, 佐藤裕二, 北川 昇, 内田圭一郎, 今村嘉希
  • Organizer: 日本口腔インプラント学会
  • Place of Presentation: 東京
  • Year and Date: 2014-09-14