Efficient method for manufacturing tooth preparation guide plates

Abstract

The invention relates to an efficient method for manufacturing tooth preparation guide plates. The method comprises the following steps that a tooth required to be subjected to tooth preparation and adjacent teeth are scanned; the three-dimensional shape of a tooth preparation body is designed by using three-dimensional reverse engineering software; the two sets of guide plates in the preparationprocess of the buccal and labial surface, the lingual and palatine surface and the occlusal surface of the tooth are designed by using the three-dimensional reverse engineering software; the dental crown data surfaces of the adjacent teeth are each thickened to be a thin wall with the thickness of 1-4 mm; the guide plates are machined into an entity through a three-dimensional printer or numericalcontrol machining equipment; a detachable drill limiter is designed and is matched with hemispherical grooves in the tops of the guide plates; firstly, the first set of guide plate is completely in place on a dentition model; then the second set of guide plate is replaced, and the tooth preparation of the rest part can be guided; and finally, the guide plates are removed, and areas which are notcovered by the two sets of guide plates are finely trimmed to be smooth and continuous. According to the method, the efficiency of tooth preparation of the key functional areas such as the axial surface, the edge, the guide plane (the tooth preparation guide plate is shown in the description) and a jaw support fossa of a base tooth in the fixed repair and removable repair process can be improved,and the precision of tooth preparation guided by the guide plates can be improved.

Description

technical field [0001] The invention relates to the production of a dental restoration, in particular to a production method of a high-efficiency dental preparation guide plate. Background technique [0002] At present, in tooth preparation, the axial surface, edge, guide plane, Tooth preparation in key functional areas such as restorative fossa has low work efficiency, and the accuracy of tooth preparation guided by the guide plate is difficult to control, which is not conducive to popularization and application. Contents of the invention [0003] In order to overcome the above deficiencies, the object of the present invention is to provide a high-efficiency tooth preparation guide plate manufacturing method, which can improve the axial surface, edge, guide plane, The efficiency of tooth preparation in key functional areas such as restorative sockets improves the accuracy of tooth preparation guided by the guide plate, which is conducive to popularization and applicati...

AI Technical Summary

Problems solved by technology

[0002] At present, in tooth preparation, the axial surface, edge, guide plane, Tooth preparation in key functional areas such as rest sockets has low work efficiency, and the accuracy of tooth preparation guided by guide plates is difficult to control, which is not conducive to popularization and application

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