| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a grinding device for dentistry, in which possibility of damaging a gingiva is low and a crowned formation section can be finely formed, and its production method. <P>SOLUTION: In the grinding device for the dentistry which has a chamfering section in the distal end of a columnar holder gold 10 and a grinding grain 2 is adhered to the apical surface 10a of holder gold 10, all the grinding grains 2 enter the inside 10d from the circumferential line of the apical surface 10a of the holder gold 10. Since grinding is carried out only by the apical surface 10a, when a boundary with the gingiva of a tooth is ground, although the chamfering section 10c touches the gingiva, the damage of the gingiva can be prevented since there is no grinding grain 2 here. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
