阅读说明：本技术 一种制作冠牙体预备调整引导板的方法 (Method for manufacturing crown tooth preparation adjustment guide plate ) 是由 龚语林 沈丽丽 许晓波 余翻翻 马山 姜迎春 于 2020-05-17 设计创作，主要内容包括：本发明涉及临床治疗附属装置的技术领域,特别是涉及一种制作冠牙体预备调整引导板的方法；可对冠预备体调整部位精准定位、辅助调整；包括以下步骤：(1)、将肩台修整完成的石膏代型通过光学仓扫描仪获得冠预备体全口模型数字化三维模型；(2)、将数字化模型导入口腔计算机辅助设计软件分析基牙预备质量,发现有预备问题者；(3)、将有问题的预备体数字模型,在义齿设计软件的模型制备工具栏中调整基牙磨除量,设计完成预备导板；(4)、将方案传输到3D打印机器进行加材或者减材制备；(5)、将冠牙体预备调整引导板安装到原石膏模型基牙上,检查导板的可靠性；(6)、将修复后的数字化模型和冠牙体预备调整引导板一起发给临床医生。(The invention relates to the technical field of clinical treatment auxiliary devices, in particular to a method for manufacturing a crown tooth preparation adjustment guide plate; the adjustment part of the coronary artery preparation body can be accurately positioned and assisted in adjustment; the method comprises the following steps: (1) obtaining a crown preparation body full-mouth model digital three-dimensional model by the gypsum model after shoulder trimming through an optical bin scanner; (2) guiding the digital model into oral cavity computer aided design software to analyze the preparation quality of the abutment, and finding out the person with the preparation problem; (3) adjusting the grinding amount of the abutment in a model preparation toolbar of false tooth design software for the digital model of the preparation body with the problem, and designing a preparation guide plate; (4) the scheme is transmitted to a 3D printing machine for material adding or material reducing preparation; (5) installing the crown tooth body preparation adjustment guide plate on the original plaster model abutment, and checking the reliability of the guide plate; (6) and sending the repaired digital model and the crown tooth preparation adjustment guide plate to a clinician together.)

1. A method of making a guide plate for preparation adjustment of a crown tooth, comprising the steps of:

(1) obtaining a digitalized three-dimensional model of the whole opening model of the crown preparation body by the gypsum model after the shoulder trimming through an optical bin scanner;

(2) guiding the digital model into oral cavity Computer Aided Design (CAD) software to analyze the preparation quality of the abutment, and finding the person with the preparation problem;

(3) after the preparation digital model with the problem is subjected to abutment space adjustment in a model preparation working column of denture design software, a preparation adjustment guide plate scheme is designed;

(4) the scheme is transmitted to a 3D printing machine for material adding or material reducing preparation;

(5) installing the crown tooth preparation adjustment guide plate on the original plaster model abutment preparation body, and checking the reliability of the guide plate;

(6) after the abutment with the preparation problem is adjusted, prosthesis manufacturing is completed in false tooth design and manufacturing software, and the modified digital model and the crown tooth preparation adjustment guide plate are sent to a clinician;

(7) the clinician firstly puts the prepared adjustment guide plate of the crown teeth on the base beside the chair, compares the occlusal surface space of the prepared adjustment body with the modified digital model to complete the guide, and then removes the guide plate to complete the try-on and cementation of the prosthesis.

2. The method of manufacturing a guide plate for adjustment of crown tooth preparation according to claim 1, wherein in the step (2), the preparation quality is checked by a denture design software.

3. The method of manufacturing a guide plate for dental crown preparation adjustment according to claim 2, wherein in the step (3), the model preparation work of the denture design software is performed.

4. A method of producing a guide plate for crown tooth preparation adjustment according to claim 3, wherein in the step (4), 3D printing is performed by an additive or subtractive producing device.

5. The method of manufacturing a guide plate for preliminary adjustment of crown teeth according to claim 4, wherein the adjustment guide plate is made of resin.

Technical Field

The invention relates to the technical field of clinical treatment auxiliary devices, in particular to a method for manufacturing a crown tooth preparation adjustment guide plate.

Background

In the clinical fixed restoration treatment of oral cavity, the tooth preparation technology is one of the treatment methods widely developed in clinic, the dental restoration doctor is engaged in the tooth preparation work in most of the daily work, however, because the oral space of the patient is limited, the operating visual field of the doctor is narrow, the clinician pays much attention to the control of the shoulder and the polymerization angle of the preparation body, the insufficient preparation of the occlusal surface space of the full-crown preparation body often occurs, especially the insufficient preparation of the functional bevel space of the functional tip occurs, and the problem causes the insufficient manufacture space of the restoration body and directly influences the strength and the service life of the restoration body.

At present, the common solution of a technician is that after a prosthesis is manufactured conventionally, the grinding area is marked on a model for the cusp of the jaw, and a clinician adjusts the jaw teeth of a patient when wearing the prosthesis, so that the situation often occurs that the patient is sensitive to the jaw teeth and cannot adjust, the patient is unwilling to damage healthy teeth, and finally the doctor can only adjust the prosthesis, so that the local thickness of the prosthesis is insufficient, and finally the prosthesis is cracked or cracked; the other method is that the technician uses the self-hardening resin material to manufacture the adjusting guide crown, so that the clinician can often find that the precision of the guide crown is poor, the clinician can not accurately guide the physician to adjust the preparation body, the rework phenomenon occurs or the adjustment is too much to influence the internal suitability of the crown. At present, a technical scheme is urgently needed in clinic, which can completely and consistently adjust the abutment preparation body in the mouth of a patient and on a model and avoid the problem of poor crown suitability caused by inaccurate adjustment.

Disclosure of Invention

In order to solve the technical problems, the invention provides a method for manufacturing a crown tooth preparation adjustment guide plate, which can realize accurate positioning and auxiliary adjustment of a crown preparation adjustment part.

The invention discloses a method for manufacturing a crown tooth preparation adjustment guide plate, which comprises the following steps of:

(1) obtaining a digitalized three-dimensional model of the whole opening model of the crown preparation body by the gypsum model after the shoulder trimming through an optical bin scanner;

(2) introducing the digital model into oral Computer Aided Design (CAD) software to analyze the preparation quality of the abutment and find the occlusal surface preparation problem;

(3) carrying out abutment form adjustment on the preparation digital model with the problem in a model preparation working column of denture design software, and designing a preparation adjustment guide plate scheme;

(4) the scheme is transmitted to a 3D printing machine for material adding or material reducing preparation;

(5) installing the crown tooth preparation adjustment guide plate on the original plaster model preparation, and checking the reliability of the guide plate;

(6) completing the manufacture of a prosthesis in denture design and manufacture software by using the adjusted abutment digital model, and sending the modified digital model and the crown tooth preparation adjustment guide plate to a clinician;

(7) the clinician firstly puts the prepared adjustment guide plate of the crown tooth body on the base beside the chair, adjusts the occlusal surface space of the prepared body, compares the modified digital model to complete the guide, and then removes the guide plate to complete the try-on and cementation of the prosthesis.

The invention relates to a method for manufacturing a crown tooth preparation adjustment guide plate, which is characterized in that in the step (2), the preparation quality of a preparation body is checked through denture design software.

The invention relates to a method for manufacturing a crown tooth preparation adjustment guide plate, which comprises the following steps of (3) carrying out model preparation work columns of denture design software;

in the method for manufacturing the crown tooth preparation adjustment guide plate, in the step (4), 3D printing is performed through an adding or subtracting device.

The invention relates to a method for manufacturing a preliminary adjustment guide plate for a crown tooth body.

Compared with the prior art, the invention has the beneficial effects that: the invention is based on the dental technician three-dimensional scanner and the denture design software and utilizes the crown tooth body prepared adjustment guide plate prepared by the 3D printing technology, the technology fits the digital and three-dimensional printing technology, the printed guide plate guides the doctor to adjust the part with insufficient preparation by accurately positioning on the preparation body of the affected tooth, compared with the traditional operation scheme, the invention can accurately position the part with insufficient preparation functional surface of the tooth body clinically, and reduce the restoration reworking caused by the damage to healthy teeth and inaccurate positioning due to the conventional operation; through the preparation of craftsman's three-dimensional scanner individuation scanning patient dentition and combination denture analysis design software, 3D printing technique, obtain the adjustment baffle scheme of laminating location on preparing the body, realized quick, the accurate preparation of adjustment baffle, more traditional self-hardening resin guide crown preparation, improved the speed of preparation, convenience, the fastness of installation in the mouth, accuracy.

Drawings

FIG. 1 is a flow chart of a manufacturing method for manufacturing a guide plate for the preparation adjustment of a crown tooth according to the present invention;

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.