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Method for making dental model mold through 3D printing

A 3D printing and 3D printer technology, which is applied in dentistry, dental prosthesis, teaching models, etc., can solve the problems of actual plaster model errors, denture or orthodontic restoration results, serious oral impressions, etc., and is easy to promote , Strong clinical practicability, and the effect of avoiding discomfort

Inactive Publication Date: 2016-11-09
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During this process, the patient's position, occlusal strength, tray size and shape, etc. will all affect the oral impression, and the subsequent procedures such as filling the mold and correcting the model are often due to the proficiency of professional technicians or improper operation. There are errors between the plaster model and the actual situation, which will have a serious impact on the final denture or orthodontic restoration results; at the same time, patients often experience severe vomiting when making oral impressions, which makes the operation fail

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 3D printing to make a full-mouth dental mold mold is used to make a plaster model of the upper and lower dentition.

[0024] The steps of 3D printing dental mold are as follows: 1) Use CT machine to conduct continuous tomographic scanning of the patient's oral cavity. Scanning parameters: scanning layer thickness is 0.25mm, exposure time is 14.7s, voltage is 120kV, and the standard data of Dicom medical digital images are obtained; 2) Export the tomographic data of the CT scan in Dicom format, input it into the Mimics10.01 software, first locate the tooth part, select the target tooth through threshold segmentation, delete the connection between the tooth and other bones, and grow the region, and then, each layer of the image After selective editing, removal of artifacts, smoothing, and filling of holes, redundant data was removed, valid data was retained, and finally a 3D model including upper and lower jaw structures was established through 3D processing and output in ...

Embodiment 2

[0027] 3D printing to make a full-mouth dental mold is used to make full-mouth resin dentures.

[0028] The steps of 3D printing dental mold are as follows: 1) Use CT machine to conduct continuous tomographic scanning of the patient's oral cavity. Scanning parameters: scanning layer thickness is 0.25mm, exposure time is 14.7s, voltage is 120kV, and the standard data of Dicom medical digital images are obtained; 2) Export the tomographic data of the CT scan in Dicom format, input it into Mimics10.01 software, first locate the dental part, select the target dental jaw through threshold segmentation, region growth and other methods, and then select the image of each layer through selective editing, Remove artifacts, smooth processing, and fill in holes, etc., remove redundant data, retain valid data, and finally establish a 3D model of the upper and lower jaws through 3D processing and output them in STL format; 3) Use Geomagic Studio 12.0 software to select the 3D model of the ja...

Embodiment 3

[0031] 3D printing makes a single tooth mold for making resin dentures.

[0032] The steps of 3D printing dental mold are as follows: 1) Use CT machine to conduct continuous tomographic scanning of the patient's oral cavity. Scanning parameters: scanning layer thickness is 0.25mm, exposure time is 14.7s, voltage is 120kV, and the standard data of Dicom medical digital images are obtained; 2) Export the tomographic data of the CT scan in Dicom format, input it into the Mimics10.01 software, first locate the tooth part, select the teeth on both sides of the target defect tooth through threshold segmentation, delete the connection between the tooth and other bones, grow the area, etc., and then , each layer of image undergoes selective editing, removal of artifacts, smoothing, and filling of holes, etc., to remove redundant data and retain valid data, and finally design and build a 3D model of damaged teeth through 3D processing to output in STL format; 3) use GeomagicStudio 12.0...

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Abstract

The invention discloses a method for making a dental model mold through 3D printing. The method comprises the steps that a three-dimensional tooth model is established through 3D calculation according to Dicom-format CT scanning fault data of patient's teeth, and then a three-dimensional model of the dental model mold is obtained through processing and output to a 3D printer in an appropriate format to obtain the dental model mold of a patient. The gypsum model of the patient's teeth and whole or single / multiple resin or ceramic false teeth and the like clinically used in oral medicine can be obtained by filling gypsum, tooth making resin, ceramic powder and other materials in the obtained mold. A traditional impression taking method is replaced by utilizing the dental model mold made through 3D printing, the discomfort of the patient is greatly decreased, and various failure phenomena in the traditional impression taking operation are decreased. In addition, the dependence on the operator's proficiency of the making quality of traditional dental products is effectively decreased while the designability of the dental model, false teeth and other dental products is enhanced through computer aided design, the clinic practicability is good, the cost is low, and the method is easy to popularize.

Description

technical field [0001] The invention relates to a method for making dental molds by 3D printing. Background technique [0002] Teeth are one of the indispensable organs of the human body, responsible for chewing, digestion, pronunciation and aesthetics. A pair of white and bright teeth is full of confidence, but modern people have premature tooth cracks, collapse, loss, deformity, etc. due to diseases, sports trauma, or congenital development. Clinically, the first step in tooth restoration is to make a model of the patient's dentition. The traditional method is to first utilize the dental model technology to make the patient's oral impression, and then make the plaster model by professional technicians. During this process, the patient's position, occlusal strength, tray size and shape, etc. will all affect the oral impression, and the subsequent procedures such as filling the mold and correcting the model are often due to the proficiency of professional technicians or im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C11/00
CPCA61C11/00
Inventor 王晓龙刘刚周峰
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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