| 摘要 |
The device has five movable plates 1 5 and is an attachment for a dental articulator 9. It is situated between the articulator arm 10 and a cast dental model 12 for use in the production of intermediate and final wafers for orthognathic surgery. The top plate 1 is fixed to the articulator and has an interlocking engagement with plate 2 permitting relative motion along the anterior posterior axis. Plate 2 similarly interlocks with plate 3 but provides left and right lateral movements. Plate 3 provides left and right rotational movements which are measured on a scale 8. Plate 4 is connected to plate 5 using three equidistant screws 6. The screws vary the spacing between plates 4 and 5 for impaction and distraction movements. All five plates can be secured in place by tightening a lock washer (14, figure 2) on a locking bolt (13) which extends through the centre of the plates.
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