Post core removal guiding guide plate and preparation method therefor
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A post core and guide plate technology, applied in the direction of manufacturing auxiliary devices, dental nerve needles, and protective layers, can solve the problems of large tooth damage, insufficient accuracy, and deviation from the long axis, so as to avoid excessive wear and easy operation , The effect of reducing the time of clinical operation
Inactive Publication Date: 2021-04-23
SICHUAN UNIV
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[0005] The purpose of the present invention is to provide a guiding guide plate for post core removal and its preparation method. Using the guide plate of the present invention for post core removal can solve the problems of insufficient accuracy of traditional pile removal technology, deviation from the long axis and great damage to teeth. Achieved the purpose of quickly and accurately removing the pile while protecting the tooth tissue
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Embodiment 1
[0039]Such asfigure 1 As shown, the pile core removing the preparation method of the guide guide, including the following steps:
[0040]S1, by shooting CBCT to obtain DICOM data of the patient's oral and broken pile, and use dental scanning equipment to obtain preoperative model, such asfigure 2 As shown, the dental scanning device includes 3Shape, shining3d Dentalscan;
[0041]S2, the DICOM data acquired by step S1, and the preoperative model is selected based on the fixing data, according to the repair principle, the target pile core diameter and length, and determine the three-dimensional position in DICOM data and preoperative model;
[0042]S3, based on the selected pile core size and three-dimensional position, generate a pile core dismantling guide, the virtual pile nuclear dismantling scheme designed by the generated pile core dismantling guideimage 3 Indicated;
[0043]The specific design process of the pile core removal guide is as follows:
[0044]Based on the target pile core and the ...
Embodiment 2
[0049]Such asfigure 1 As shown, the present embodiment is based on the first embodiment, and further includes heat treatment and post-processing on the 3D printed guide; the specific process of the heat treatment is as follows:
[0050]Insulation at 80 ° C for 20-30 minutes, then cool with the chain;
[0051]The specific process of the post-treatment is as follows:
[0052]The guide plate is immersed in 80 ° C corn oil ultrasound to clean 10-15 min, then alcohol wipe.
[0053]In the present embodiment, the performance of the guide can be improved by sequential heat treatment and post-treatment of the guide plate.
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Abstract
The invention discloses a post core removal guiding guide plate and a preparation method therefor. The preparation method comprises the following steps: S1. carrying out CBCT photographing so as to acquire DICOM data on an oral cavity and a broken post of a sufferer, and acquiring a preoperative cast by dental scanning equipment; S2. subjecting the DICOM data and the preoperative cast acquired in the step S1 to fitting, selecting a target post core diameter and length according to a repair principle based on fitting data, and determining a three-dimensional position of the target post core in the DICOM data and the preoperative cast; S3. generating a post core removal guide plate based on the selected post core size and the three-dimensional position; and S4. subjecting the post core removal guide plate generated in the step S3 to 3D printing molding, thereby obtaining the post core removal guiding guide plate. By applying the guide plate disclosed by the invention to post core removal, the problems of the traditional post removal technology that the accuracy is insufficient, deviation from major axis is present, and injury to a tooth body is large can be solved, and the aim of protecting tooth body tissue while rapidly and accurately removing a post is achieved.
Description
Technical field[0001]The present invention relates to the field of dental technology, and more particularly to a pile-core removal guiding guide and its preparation method thereof.Background technique[0002]When the dental tissue is large, in particular, in the case where the residual tooth tissue is insufficient or the strength of the residual tooth tissue is insufficient after root canal treatment, the pile verified is the main repair method for retaining the residual crown and restores its appearance morphology and function. The pile roll crown is firmly combined into an organic whole through an adhesive, relying on the residual root and artificial crown of the root canal and intramedullary cavity, thereby achieving the purpose of repairing the restoration.[0003]However, we often see patients who have re-treated the treatment of the pile nucleus due to the reasons of the reasons such as rooted disease, secondary, solid loss, nuclear break, pile break or looseness.[0004]At present,...
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