adaptive bone remodeling on micro-structurally optimized titanium implant

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K11222
• 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: Showa University
• Principal Investigator: Shibata Yo 昭和大学, 歯学部, 講師 (30327936)
• Co-Investigator(Kenkyū-buntansha): 鈴木 大 昭和大学, 歯学部, 講師 (00585797) ; 宮崎 隆 昭和大学, 歯学部, 教授 (40175617) ; 谷本 安浩 日本大学, 松戸歯学部, 准教授 (40312045) ; 美島 健二 昭和大学, 歯学部, 教授 (50275343) ; 山田 篤 昭和大学, 歯学部, 講師 (50407558)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: チタン / インプラント / リモデリング / ナノインデンテーション / 表面分析

Outline of Final Research Achievements

The purpose of this study is to investigate the mechanical requirements of tissue- implant interface. The interface of spark anodized titanium- bone ingrowth likely enables a functionally graded Young’s modulus, thereby allowing reduction of stress shielding. The understanding of complex mechanical bone behavior and size-dependent properties ranging from nano- to a mesoscopic level are essential in the biomechanical optimization of implants. The requirements of regenerated tissue at the interface include high strength, fracture toughness related to ductility, and time-dependent energy dissipation and/or elastic-plastic stress distribution. Moreover, a strong relationship between strain signals and peri-implant tissue turnover could be expected, so that ideal implant biomechanics allows longevity via adaptive bone remodeling.

Free Research Field

歯科理工学