| 摘要 |
PURPOSE: An impression tray for a part is provided to prevent a hardened impression material from being exfoliated from the tray, thereby obtaining an impression with high resolution. CONSTITUTION: An impression tray for a part comprises an inner wall (3) and an exterior wall (2). The exterior wall is formed into a slow curve type, is installed from the outer side of a bottom (1) which includes a plane having a uniform width corresponding a length of the connected teeth of at least three and is gradually lowered at one end in order to have a height identical with the height of the bottom. The inner wall is inclinedly installed from the inner side of the bottom to a direction in which the upper end becomes distant from the bottom through an arc shape part (3a) and is gradually lowered at both ends in order to have a height identical with the height of the bottom. |
