| 摘要 |
A dental articulator has upper and lower cast models of a patient's upper and lower teeth in shells (13a, 13b) linked by an articulation joint (14). The models are formed in the shells (13a, 13b) by locating a bite tray (1, 25) having impressions on opposite sides between the shells (13a, 13b) in fixed positional relationship thereto. The lowermost shell (13a) is filled with casting material in contact with the lowermost impression and this is allowed to set to form one model. The bite tray (1, 25) and shells (13a, 13b) are then turned over to enable the other model to be formed in the other shell (13b). The bite tray (1, 25) has a projecting handle (6, 28) which is clamped with a clamping device (19) which can be detachably mounted on a base (10) both ways up. The shells (13a, 13b) can also be detachably mounted on the base (10) both ways up. Locating devices (11, 12) are provided so that the clamping devices (19) and the shells (13a, 13b) retain their positional interrelationship both ways up. |
