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　： Characterization of Acrylic Resin Containing Fluoridated Apatite-Coated Titanium Dioxide Photocatalyst
Subtitle　： BKDC CLINICAL AND RESEARCH TOPICS: New Technology: TiO2 Photocatalyst and Dental Materials Applied Research
Authors　： Tomofumi Sawada*1, Tomoji Sawada*1, Masaichi Chang-il Lee*2, Nobushiro Hamada*3, Katsuhiko Kimoto*1
Authors（kana）　：
Organization　： *1Division of Fixed Prosthodontics, Department of Oral and Maxillofacial Rehabilitation, Kanagawa Dental College, *2Division of Pharmacology & ESR laboratories, Department of Clinical Care Medicine, Kanagawa Dental College, *3Division of Microbiology, Department of Infection Control, Kanagawa Dental College
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 39
Number　： 1
Page　： 33-35
Year/Month　： 2011 / 3
Article　： Report
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] It is possible that the use of specific materials in the manufacture of dentures may supply an improved microorganism removal function. To establish a novel denture-cleaning method that uses an acrylic denture base resin containing fluoridated apatite coated titanium dioxide (FAp-TiO2), we characterized FAp-TiO2 powder, and investigated the antifungal properties of acrylic resin containing FAp-TiO2. The solubility test showed an improvement in calcium solubility inhibition when FAp-TiO2 powder was used rather than hydroxyapatite-coated TiO2 (HAp-TiO2) powder. In addition, the FAp-TiO2 powder generated hydroxyl radicals via photocatalysis conducted using electron spin resonance, and showed greater photocatalytic activity and antifungal activities than HAp-TiO2 powder in the methylene blue decomposition test and the cell viability test for Candida albicans, respectively. Furthermore, the antifungal properties of acrylic resin containing FAp-TiO2 were superior to that of acrylic resin containing HAp-TiO2. Taken together, FAp-TiO2 featured remarkable photocatalytic properties, and these characteristics may aid in the development of novel denture-cleaning methods suitable for clinical application.
Practice　： Dentistry
Keywords　： Fluoridated apatite coated titanium dioxide (FAp-TiO2), Photocatalyst, Denture, Candida albicans