| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To manufacture a product to be comfortably used within the oral cavity by increasing the strength of a melamine resin foam in which a lot of bubbles are present because of the tissue structure and whose physical property is fragile and weak against the force such as pulling from outside; and to provide the melamine resin foam and a tooth surface cleaner matching a tooth surface shape and effective in removal of plaque in an interdental region. <P>SOLUTION: It is publicly known that the tensile strength is increased by compressing the melamine resin foam. The tooth surface cleaner having an excellent usability, capable of preventing the melamine resin foam from being broken from the mounted place and having a high plaque removing capability, is developed by changing the compression ratio of a place where the external force is applied according to the application by utilizing the physical property. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
