Oral upper and lower jaw position relation determining device and application thereof

Abstract

The invention relates to an oral upper and lower jaw position relation determining device and application thereof. The oral upper and lower jaw position relation determining device comprises an upperjaw holding tray, an upper jaw tooth barrier, a lower jaw holding tray, a lower jaw barrier, marking screws and a fixing ring, wherein both sides of the upper jaw barrier or the lower jaw barrier areprovided with grooves in molar tooth areas, screw holes are formed inside the grooves, and the marking screws are threadedly connected inside the screw holes for adjusting the height to be in contactwith the opposite lower jaw barrier or upper jaw barrier to mark positions. By arranging the marking screws into the molar areas at the rear of an upper jaw and a lower jaw, the oral upper and lower jaw position relation determining device does not occupy tongue space, thereby improving the comfort level for a patient and ensuring the stability of the upper jaw holding tray and the lower jaw holding tray.

Description

technical field [0001] The invention relates to stomatology, in particular to a device for determining the relationship between the upper and lower jaws in the oral cavity and its application. Background technique [0002] When the natural dentition exists, the close contact of the upper and lower dentition determines the positional relationship of the upper and lower jaws, and the relationship between the upper and lower jaws is the most extensive contact position (also known as the centric jaw position). When the mandibular condyle is located in the posterior position of the articular fossa and the surrounding tissues are not restricted, it is called the median relational position. For normal occlusal persons with dentition, the median jaw position is within about 1mm in front of the median relationship position or the two positions are consistent. Loss of natural dentition means the loss of the central jaw position. Without the support of the dentition and the cusp locki...

AI Technical Summary

Problems solved by technology

This patent utilizes the tracing screw (5) to trace on the composite Gothic arch tracing board (2) to determine the position of the upper and lower jaws, but the tracing screw (5) is set at the middle position and contacts the tongue in the oral cavity. For those with enlarged tongue, The elderly, the disabled or those with sensitive mouth will feel uncomfortable, which can easily cause great discomfort and affect the results

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