Digitalized assessment method and system for in-vitro root canal preparation quality

Abstract

The invention relates to a digitalized assessment method and system for in-vitro root canal preparation quality. The method comprises the following steps: firstly, producing a 3D (Three Dimensional) printing simulation resin tooth model based on an isolated tooth digitalized image; then carrying out CBCT (Cone Beam Computed Tomography) or microscopic CT (Computed Tomography) scanning on resin tooth models before and after root canal preparation; recording an apparatus model, steps and conditions of apical foramen expansion and fragments outside a root canal hole before and after the use of root canal preparation operation; extracting the shape of each cross section of a root canal wall, a geometric center point of each cross section of a root canal and the minimum distance between each part on the root canal wall and the surface of a tooth body by adopting image processing software; and then overlapping and comparing corresponding images before and after the preparation to obtain the cleanliness and deviation degree of the resin tooth root canal and residual minimum root canal wall thickness after the preparation. According to the digitalized assessment method and system involved in the invention, the in-vitro root canal preparation operation of a resin tooth is subjected to digitalized assessment, so that the accuracy and objectiveness of assessing the root canal preparation effect can be improved.

Description

technical field [0001] The invention relates to the technical field of stomatology, in particular to a method and system for digitally evaluating the quality of root canal preparation in vitro. Background technique [0002] Root canal preparation refers to the use of mechanical and chemical methods to remove the infectious substances in the root canal system as much as possible to achieve the purpose of cleaning and shaping the root canal. one of the factors. The quality of root canal preparation is closely related to the doctor's training level, root canal preparation technique and instrument use. Therefore, the comprehensive evaluation of the quality of root canal preparation is helpful to the improvement of doctors' operation level, the evaluation and selection of root canal preparation methods and instruments, etc. [0003] For decades, in vitro evaluation of root canal preparations has mainly included the following: [0004] 1. The cleanliness of the root canal wall....

AI Technical Summary

Problems solved by technology

However, the dentin of natural teeth is an opaque substance, and the effect of root canal preparation cannot be directly observed, which is not conducive to the operator's feedback on his own operation effect, and it is also not conducive to the experimenter's evaluation of the preparation effect

At the same time, it is worth noting that in the past, the evaluation of root canal preparation quality was only based on visual observation and empirical judgment, which could not avoid errors caused by different judging standards among different individuals, making it difficult to ensure the accuracy of root canal preparation evaluation for each operator. sex and objectivity

Images