| 摘要 |
Dental apparatus for recording the interdental relationship of posterior teeth has spaced apart longitudinal supports ( 1, 2 ) between which longitudinal side members ( 7, 8 ) of a bite tray ( 5 ) are releasably engaged. The bite tray has supporting material ( 6 ) for supporting impression material, between the side members ( 7, 8 ). The side members ( 7, 8 ) may extend over inner faces of the longitudinal supports ( 1, 2 ) to protect against contact between the impression material and the supports ( 1, 2 ). The longitudinal members ( 7, 8 ) may be channel members which slide along or snap-fit over rail-shaped supports ( 1, 2 ). In an alternative embodiment the side members may engage slots ( 13, 14 or 18, 19 ) in the supports ( 11, 12 or 16, 17 ). |
