PROBLEM TO BE SOLVED: To provide a tool for tooth plane cleaning and intraoral cleaning, which has efficiency of stain removal performed by tooth plane coloration equal to a melamine foam and which enables checking of safety.SOLUTION: A microfiber sheet 3 (in which a three-dimensional mean size of a fiber piece for assembling a material is 2 μm or less) safe for the human body is used. Colored stains and the like derived from the outside of a living body and adhering to enamel between prisms and a prism sheath surface are efficiently removed. A tooth plane is hardly scratched because enamel hardness Hv is a numeric value equal to or lower than 40-60.COPYRIGHT: (C)2015,JPO&INPIT【課題】メラミンフォームと同等の歯面着色による汚れ除去効率を有し且つ、安全を確認できる歯面清掃及び口腔内清掃具を提供する。【解決手段】人体に安全なマイクロ繊維シート3(物資を組み立てる繊維片の三次元的平均寸法が2μm以下)を使用し、小柱間エナメル質及び小柱鞘面に付着した生体外由来の着色汚れ等を効率よく除去し且つ、エナメル質硬度Hv40~60と同等又は低い数値のため歯面を傷つけることが少ない構成とする。【選択図】図2
