Laser positioning device of bite plane

Abstract

The invention discloses a laser positioning device of a bite plane, which comprises a translational support, a first laser used as a positioning datum, and a second laser used for positioning the bite plane, wherein the first laser and the second laser are arranged on the translational support; and the second laser can parallelly move relative to the first laser so as to determine the bite plane.The laser positioning device can directly position and bite the plane by using laser, can effectively improve the working efficiency only through finishing primary wax rim. Because the space positions of the lasers and the relative position between the lasers are easy to adjust and determine, and the laser has good direction, thus the positioning accuracy of the bite plane can be improved.

Description

technical field [0001] The invention relates to a positioning device, in particular to an occlusal plane laser positioning device used for locating the occlusal plane in oral restoration. Background technique [0002] Accurate determination of the occlusal plane position of the total denture in prosthodontics is one of the important steps in restoration. There are many discussions and researches on the method of determining the occlusal plane in the literature. Usually, a beautiful facial appearance requires that the front of the occlusal plane be located about 2 mm below the lower edge of the upper lip, which is the position of the occlusal plane of the anterior teeth, and that the occlusal plane should be parallel to the line connecting the alar-tragus line and the pupil. [0003] The traditional tool and method for determining the occlusal plane is to repeatedly modify the maxillary wax embankment with the help of the occlusal plane plate, so that the occlusal plane is pa...

AI Technical Summary

Problems solved by technology

The first deficiency of the occlusal plane method is that it only has a qualitative effect, that is, it can point out the position of the wax embankment that needs to be repaired in the case of non-parallel, but it cannot clearly indicate the amount of repair, that is, it cannot quantitatively guide the repair of the wax embankment. The amount needs to be estimated by the doctor, and it is often "trimming-occlusal plane board calibration" repeated several times to meet the requirements. The time for experienced doctors to complete is relatively short, but it is not easy for beginners to master

The second shortcoming of the occlusal plane method is that the degree of parallelism between the occlusal plane and the ala-tragus line and the line connecting the pupils is estimated visually by doctors, and there is no objective standard. Therefore, only experienced doctors can guarantee a certain degree of accuracy. Scholars are not easy to master

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