| 摘要 |
Sectional or modular impression composed by a "U" shaped plain base with a handle (1), an oval hole (3) set in each of the two final distal points of the "U" shaped base, and a vestibular arch (23) with a rectangular shaped hole (6), located centrally below the bisecting plane of the arch (23), for insertion of the handle (1), two located just above the hole (6) for receiving pliers, and to obtain the final impression tray handle (1) of the base is fitted through the hole (6) for the handle (1) of the base is fitted through the hole (6) for the handle in the vestibular arch (23). |
