| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable easily and accurately positioning of the center line of an impression sampled. SOLUTION: An upper arcus 5 is pivoted on a lower arcus 4 at a pivoting part 6 and an upper jaw side dentition model 28 and a lower jaw side dentition model 29 respectively retained by gypsum 26 and 27 are held between the upper and lower arcus 4 and 5. An incisor leading rod 9 is provided with a vertical linear member 12 at the center of a frame body 11. The linear member 12 is aligned with the center line CL being viewed from the direct front. Thus, the center line is visible from the direct front thereby facilitating the aligning of the dentition models.</p> |
