Method for measuring craniojaw skeleton. relationship and dimension

Abstract

The invention relates to an orthodontics cephalometrics analysis which is a computer image measurement method that is designed according to the cephalometrics analysis work needed in the orthodontic clinical diagnosis, in particular to a method for measuring the structural relation and the size of craniofacial bones in a skull tablet. The invention is characterized in that the method at least comprises the steps as follows: the obtained skull tablet is displayed on a display; needed points and lines are sequentially set on the skull tablet on the display; the structural relation or the size of the craniofacial bones on the skull tablet is realized through obtaining the distances between the points and the lines, between the points and the points, and between the lines and the lines. The method has the advantages of easy adaptation by doctors, optional measurement without limit, convenient operation and good maintainability.

Description

technical field [0001] The invention relates to orthodontic cephalometric analysis, which is a computer image measurement method designed for the cephalometric analysis required for orthodontic clinical diagnosis, and is precisely a method for measuring cranio-mandibular structural relationship on a skull slice. , size method. Background technique [0002] The reason why cephalometric analysis technology is so important to orthodontists that it has become an indispensable means of diagnosis and analysis is mainly determined by its function. The study found that cephalometric analysis mainly has the following characteristics: [0003] a. Some mark points, lines, and planes on the measurement sheet are often constant after growth and development, and can be used as reference points and reference planes for measuring changes in the position of other structures. [0004] b. For individuals with normal tooth arrangement and craniofacial structure, the line distance and angle of...

AI Technical Summary

Problems solved by technology

But this method still has some problems that limit its popularization and use at present. These problems are mainly: 1. These methods generally adopt the mark points to be preset on the image first, and then the user drags the mark with the mouse to finally determine the mark. The method of inputting the position of the point, which makes the input operation process of the mark point relatively cumbersome compared with the method of directly calibrating the fixed point in the manual cephalometric operation, and does not conform to the fixed point method that the orthodontist has been used to in the long-term work

2. The package-type integrated measurement method widely implemented in the data measurement process makes it necessary to input a complete set of marker points to run its operating procedures, which is very cumbersome and inflexible when measuring individual items

3. Integrating the process of drawing lines and drawing edge curves and data processing in cephalometric analysis is also one of the reasons why the marker points must be input as a set. Sometimes the user only needs certain data to assist the diagnosis design. Based on the integration of the process of drawing edge curves and data processing, inputting a large number of marker points in sets is undoubtedly a futile and cumbersome operation for users.

Images