P-6 光触媒技術によるセルフクリーニングデンチャーの特性(研究奨励賞応募ポスター発表,第60回日本歯科理工学会学術講演会(創立30周年記念大会))

概要

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Fluoridated apatite-coated titanium dioxide (FAp-TiO_2) is known to act photocatalysis in response to ultraviolet A (UVA) irradiation. This specific materials used for the manufacture of dentures can enhance removal of microorganisms. In this study, we investigated the antifungal effects, methylene blue (MB)-decomposition tests, and mechanical property tests. FAp-TiO_2-containing acrylic resin demonstrated superior effectiveness antifungal effects as well as decomposing methylene blue. In the 3-point bending test, it showed a smaller decrease in flexural strength compared with TiO_2- or HAp-TiO_2-containing acrylic resin; furthermore, UVA irradiation did not significantly influence its flexural strength compared with control; this fulfilled the ISO 1567 requirements. These results indicate that FAp-TiO_2-containing acrylic resin is a clinically suitable material to maintain proper denture hygiene.
2012-09-25