| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a measured object attaching tool used when preparing a three-dimensional shape data of a portion other than an engagement portion of a dental prosthesis wherein the engagement portion having a protruded and/or recessed engagement part with a cross-sectional shape forming a shape other than a rotor is projected to a jaw side, by a three-dimensional shape measuring instrument provided with a rotary table with an axis forming a Z-axis, an XY-table fixed with a mounting stand, and a measuring part for conducting measurement by one laser sensor, and a data preparation method using the same. <P>SOLUTION: The measured object attaching tool 2 is constituted of the mounting part 2b on an under face of a cylindrical part 2a, an inclined part 2c in a boundary part between a side face and an upper face of the cylindrical part 2a, and a cylindrical part 2d having an attaching part 2e on the upper face of the cylindrical part 2a, a model 3 of the dental prosthesis is engaged with the attaching part 2e of the measured object attaching tool 2 to be mounted on the mounting stand 1b, a portion where luminous energy gets low abruptly is detected thereafter by the laser sensor to specify a lower end of the inclined part 2c, and an upper end of an engagement portion 3a of the model 3 is calculated thereby to prepare three-dimensional coordinates other than the engagement portion 3a of the model 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
