Guide plate for orthodontic microscrew implantation and manufacturing method thereof

Abstract

The invention discloses a guide plate for implanting orthodontic microscrews and a manufacturing method thereof. The method comprises: acquiring tooth and jaw data from a patient's CBCT image, and reconstructing a three-dimensional image of the jaw and teeth in the area to be implanted; Acquire the three-dimensional image of the microscrew to be used in the microscrew three-dimensional image database, and adjust the three-dimensional image of the microscrew to be used to a predetermined position; establish the first cylinder, whose direction is the same as that of the microscrew to be used, and whose diameter is larger than the end of the screwdriver head The diameter of the cuff; the establishment of the guide: a second cylinder is formed around the first cylinder along its axial direction, its diameter is larger than that of the first cylinder, the two cylinders are coaxial and equal in height, and the cylinder faces the alveolar mucosa There is a buffer distance between one end and the alveolar mucosa; establish a retention part: draw a coating with a predetermined thickness of the extension crown on the occlusal side and the occlusal surface of the high point of the axial surface of an adjacent tooth at the implantation site; the establishment of a connection part will guide The part is connected with the retaining part, and the three-dimensional image of the guide plate is obtained and printed.

Description

technical field [0001] The invention relates to the field of orthodontics, in particular to a guide plate for orthodontic microscrew implantation and a manufacturing method thereof. Background technique [0002] Temporary Anchorage Devices (TADs for short) are absolute anchorage devices placed in or on the bone surface for orthodontic treatment. Compared with traditional anchorage devices, TADs have the advantages of not requiring patient compliance. Compared with other bone implant anchorages, microscrew implants are smaller in size, have the advantages of easy operation, less damage, and lower price, and are currently the most commonly used type of anchorage implants. Using it can assist in the correction of difficult orthodontic cases and expand the indications for orthodontic treatment. However, in the implantation of microscrews, problems such as root damage and implant stability reduction caused by contact between the implant and the root have been found frequently. ...

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