アブストラクト（39巻1号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Application of UV Light-induced Biofunctionalization to Titanium Implant Surface
Subtitle　： BKDC CLINICAL AND RESEARCH TOPICS: New Technology: TiO2 Photocatalyst and Dental Materials Applied Research
Authors　： Hideki Aita*1,*2, Norio Hori*2,*3, Miyuki Sakata*4, Yoshifumi Toyoshita*1, Hisashi Koshino*1, Takahiro Ogawa*2
Authors（kana）　：
Organization　： *1Division of Occlusion and Removable Prosthodontics, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido, *2Laboratory for Bone and Implant Sciences (LBIS), The Jane and Jerry Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, Biomaterials and Hospital Dentistry, UCLA School of Dentistry, *3Division of Fixed Prosthodontics, Department of Oral & Maxillofacial Rehabilitation, Kanagawa Dental College, *4Oral Rehabilitation, Division of Oral Functional Science, Graduate School of Dental Medicine, Hokkaido University
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 39
Number　： 1
Page　： 37-39
Year/Month　： 2011 / 3
Article　： Report
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] The topological and physicochemical properties of implant surfaces affect the osteoconductive capacity of implant materials. To assess the osteoconductive potentials of various titanium surfaces, considerable attention has been given to surface roughness, which is the most representative parameter for topographical evaluation. It is generally accepted that moderately roughened surfaces (average surface roughness of 1.0-2.0μm) are more osteoconductive than smooth surfaces. However, no currently available commercial implants with such optimal microtopographical features succeeded in attaining the ideal of a complete level of osseointegration (45-65% of bone-implant contact on average). In this document, we present a summary of recent publications that reveals that ultraviolet light-induced biofunctionalization has the promising capability of improving the physicochemical properties of titanium dioxide surfaces and maximizing the osseointegration capacity of titanium implants, resulting in what is virtually a complete level of peri-implant bone formation (near 100% bone-implant contact). Thus, this article introduces a novel and decisively advantageous surface modification technology that is partially based on the photocatalytic action of the titanium dioxide layer on titanium surfaces. Because of its unprecedented level of peri-implant bone formation as well as its distinct process and mechanisms of osseointegration, it is proposed that peri-implant osteogenesis induced around UV-treated implants be defined as superosseointegration.
Practice　： Dentistry
Keywords　： Osseointegration, Photocatalysis, Titanium implant, Hydrocarbon, Aging