Evaluation of the micromotion for immediately loaded implant

• Project/Area Number: 25861893
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Dental engineering/Regenerative dentistry
• Research Institution: Nara Medical University
• Principal Investigator: HORITA Satoshi 奈良県立医科大学, 医学部, 助教 (60526713)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 歯科インプラント / 即時荷重 / 微小動揺 / 有限要素法 / オッセオインテグレーション / 骨結合

Outline of Final Research Achievements

The purpose of this study was to investigate the biomechanical behavior of immediately loaded implants in an edentulous mandible according to the All-on-Four concept.The results showed that mandibular fixed full-arch prostheses without cantilevers may result in a favorable reduction of the peri-implant bone strain during the healing period, compared with cantilevers.The maximum micromotion was within the acceptable limits for uneventful implant osseointegration according to the All-on-Four concept.Framework material did not play an important role in reducing the peri-implant bone strain and micromotion at the bone-implant interface.

Research Products

• [Journal Article] Biomechanical analysis of immediately loaded implants according to the “All-on-Four” concept (2017)
  • Author(s): Horita S, Sugiura T, Yamamoto K, Murakami K, ImaiY, Kirita T.
  • Journal Title: Journal of Prosthodontic Research Volume: 61 Issue: 2 Pages: 123-132
  • DOI: 10.1016/j.jpor.2016.08.002
  • NAID: 130005628590
  • ISSN: 1883-1958, 1883-9207
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] BIOMECHANICAL ANALYSIS OF IMMEDIATELY LOADED IMPLANTS ACCORDING TO THE “ALL-ON-FOUR” CONCEPT (2017)
  • Author(s): Satoshi Horita, Tsutomu Sugiura, Kazuhiko Yamamoto, Kazuhiro Murakami, Tadaaki Kirita
  • Organizer: 23rd International Conference on Oral & Maxillofacial Surgery (ICOMS) 2017
  • Place of Presentation: Hong Kong Convention and Exhibition Center.
  • Year and Date: 2017-03-31
  • Int'l Joint Research
• [Presentation] “All-on-Four”コンセプトに基づいて即時荷重を適用したインプラントの力学解析 (2016)
  • Author(s): 堀田 聡，杉浦 勉，山本一彦，村上和宏，中上佳寿彦、桐田忠昭
  • Organizer: 日本顎顔面インプラント学会
  • Place of Presentation: 東京医科歯科大学 M&Dタワー
  • Year and Date: 2016-12-03
• [Presentation] Strain distribution of immediately loaded implants with fixed prosthesis using the “All-on-Four” protocol in the edentulous mandible:nonlinear three-dimensional finite element analysis (2014)
  • Author(s): Satoshi Horita, Tsutomu Sugiura, Kazuhiko Yamamoto, Masayoshi Kawakami, Kazuhiro Murakami, Tadaaki Kirita
  • Organizer: 96th Annual Meeting, Scientific Sessions & Exhibition in conjunction with the Japanese Society and Korean Association of Oral and Maxilllofacial Surgeons
  • Place of Presentation: 米国 / ホノルル
  • Year and Date: 2014-09-08 – 2014-09-13
• [Presentation] 下顎無歯顎に”All-on-Four”コンセプトに基づいて即時荷重を適用したインプラントの有限要素解析 (2013)
  • Author(s): 堀田聡、杉浦勉、山本一彦、村上和宏、上田順宏、今井裕一郎、桐田忠昭
  • Organizer: 第17回 日本顎顔面インプラント学会総会
  • Place of Presentation: 日本歯科大学