TW201345491A - Method of digital filing and fabrication for dental prosthodontics and prosthesis and teaching and training thereof - Google Patents

Abstract

This invention relates to a method of digital filing and fabrication for dental prosthodontics and prosthesis, mainly comprising the steps of: scanning and establishing a first digital model file, optical positioning, and performing cutting treatment before surgery, and establishing a second digital model file for the cutting process; using the calculation of the physical model to reversely establish an autologous crown model file of a patient; and processing and fabricating a fixed prosthesis meeting the requirement of the patient combined with the second digital model file and the autologous crown model file, so as to make the inner layer structure of the fixed prosthesis crown tightly combined with an abutment and determine whether to keep the appearance of the original crown according to the needs. The digital model file of the tooth model according to the aforementioned method can be used for the teaching and training of the trainees.

Description

Dental patching and sputum complex digital file creation and production methods and teaching training

The invention relates to a dental patching and smashing complex digital documenting and manufacturing method, and a dental teaching and squat compounding teaching training.

In the treatment of dental caries, when the permanent tooth is damaged, it will not be able to grow new teeth after the removal. Therefore, there is a treatment called 赝 complex patch, which is used through fixed dentures (generally called crown and bridge). Turning and grinding the natural teeth as abutment teeth, and then attaching a metal or metal combined ceramic denture-crown or bridge to the abutment teeth.

When the crown is suitable for severe tooth decay or trauma and can not be repaired by the traditional filling method, the tooth is protected by the crown after a proper amount of turning, so that it can be used continuously without being removed. The root canal treated tooth has a severe tooth defect. In addition to making the crown, an additional tooth (commonly known as a nail) is made in the root canal to support the crown.

The bridge is suitable for the removal of a tooth. After the teeth in the edentulous area have been modified by turning, the edentulous area is restored like a bridge. After the tooth is removed, the edentulous area is formed. If it is empty for a long time, the teeth will be excessively erupted, and the teeth before and after will also tilt toward the missing tooth area to cause occlusion interference. After the right and left teeth have been properly shaped, a three-unit bridge is made (the front and rear teeth can be seen as a bridge to form a bridge).

The focus of the above-mentioned 赝 complex patch is that the crown of the denture and the tooth (the abutment tooth) that can be turned in the patient's mouth can be brought into close contact. The traditional method is to use the gypsum to turn the patient's dental mold after the turning treatment, and then manually punch the crown with the articulator, and then manually adjust the bite, and finally hand-turn the denture crown. Traditional methods of construction are not only time consuming but labor intensive.

At present, the trend of dentistry is to introduce CAD/CAM system, CAD (Computer-Aided Design) is computer-aided design, and CAM (Computer-Aided Manufacturing) is computer-aided manufacturing. This concept is transformed from mechanical manufacturing. It is mainly through intraoral scanning, which can provide internal anatomical information, such as teeth, humerus, alveolar bone and upper sinus, through oral scanning in the oral cavity of patients after turning treatment. Through the digital 3D environment to generate the patient's oral data, and then select the digital crown, through the virtual adjustment bite, this process is similar to CAD, complete the digital file of the crown, automatically turn the denture directly into the processing machine, import this The process accelerates the production of dentures.

Because the dental CAD/CAM system is in a state of development, there are some immature or cost reasons, and it has not been fully imported. Therefore, there is often a third traditional combination of CAD/CAM, mainly for the treatment after turning. After the gypsum is turned into a dental mold, the dental mold is scanned, and the dental model data of the patient is generated in a digital 3D environment, and then the digital crown is selected, and the digital position of the crown is completed by virtual adjustment, and the digital file of the crown is completed. Automatically turning the dentures directly into the machine, and introducing this process can speed up the production of the dentures.

However, the aforementioned fixed denture-crown or bridge method is based on the abutment teeth after turning treatment as the basis for revolving the patient's dental model or intraoral scan, whether it is traditional practice or through dental CAD/CAM. The system will have the problem of close connection between the abutment and the crown; while the bridge does not use the appearance of the original patient's original teeth, but uses the crown of the technician's hand or the crown of the database. The physician or patient cannot decide, as needed, to retain the original crown or use the crown model built into the database.

Therefore, in order to solve the above-mentioned deficiencies, the object of the present invention is to provide a dental patching and 赝 complex digital positioning and manufacturing method, using the establishment of a digital model and the optical space 3D positioning method to record the entire process of turning a patient's teeth. Record all the teeth that have been turned off and the remaining support body. You can use this information directly to make the crown, so that the crown and the abutment body are closely combined.

Another object of the present invention is to provide a method for documenting and manufacturing a dental patch and a sputum complex, which allows a physician or a patient to decide whether to maintain the appearance of the original crown or use the crown appearance built into the database.

A further object of the present invention is to provide a teaching training for dental patching and 赝 complex digital positioning and production, recording the entire process of turning a dental mold, recording all the teeth that have been turned off and the remaining abutments, and The use history is stored so that it can be practiced and improved in the future.

In order to achieve the above purpose, the present invention discloses a dental patching and sputum complex digital documenting and manufacturing method, which mainly comprises the following steps: pre-operative scanning to establish a first digital model, which mainly comprises the following steps: pre-operative scanning, through The scanning device performs a pre-operative shape scan of the patient's treated teeth to establish a first digital model file; optical positioning and turning treatment, tracking the medical device through the optical positioning system, and optically positioning the turning tool with the first A digital model file combines to turn the treated tooth into abutment tooth and establish a second digital model file for the turning process; the solid model calculus will be treated through the second digital model file previously established by the turning process. The process of turning the teeth into abutment teeth reverses the establishment of a self-crown model file of the patient; and processing the fixed denture, through computer-aided design and manufacturing, combined with the second digital model file and the self-crown model The file is made in a fixed denture that meets the patient's needs. The fixed denture includes the crown and bridge.

The pre-operative scan includes first using a plaster to reproduce the dental model of the patient, and then feeding the dental mold into the dental model scanner to obtain the first digital model file. The dental model scanner includes laser scanning and projection optical scanning. Device.

Wherein, the scanning device scanned before the operation comprises an intraoral scanning device, which is directly photographed through the sensor into the patient's mouth, and the shape of the tooth is obtained, and the first digital model file is established.

Among them, the pre-operative scan is the application of computed tomography (CT) photography, directly photographing the patient's intraoral fault data, including the shape of the teeth, bone, neural tube and other information to establish the first digital model file.

Wherein, the processed fixed denture system is combined with the second digital model file and the self-crown model file to determine the inner and outer structures of the crown, and the fixed denture is automatically turned by a tool.

Wherein, the processed fixed denture further comprises a crown selection, and a number of crown model files conforming to the patient are selected from a crown database through the software body; and the digital crown model file conforming to the patient is selected to perform a digital virtual The occlusion is adjusted; the digital virtual adjustment is combined with the digital crown model file and the self-crown model file to determine the inner and outer structures of the crown, and the fixed denture is automatically turned by a tool.

The method of the present invention can also be applied to the teaching training of dental patching and 赝 complex digital file creation and production, which mainly includes the following steps: the trained person obtains a tooth model that has established a teaching digital model file, and then tracks the medical device through the optical positioning system. The method comprises: combining the optical positioning of the turning tool with the teaching digital model file, turning the tooth model into abutment tooth, and establishing a second digital model file in the turning process; and transmitting the original crown profile through the tooth model, And the second digital model file converts the process entity model which is turned into abutment tooth to inversely establish a crown model file; processing and manufacturing the fixed denture, through the crown model file, through the computer aided manufacturing process to produce the fixed denture required for production And the aforementioned fixed denture is sleeved on the abutment teeth, and the preparation result of the trained person's turning and fixed denture is evaluated.

The advantage of this case is that the preoperative scan is used to establish the digital model of the patient's original teeth and the optical space 3D positioning method. The whole process of turning the teeth of the patient is recorded, and all the teeth that have been turned off and the remaining abutments are recorded. The data can be directly used for the production of the existing fixed denture preparation system, so that the inner structure of the crown can be closely combined with the abutment body. Moreover, because of the autogenous crown model file, the patient can directly use the appearance of the original tooth instead of using the crown of the technician's hand or the crown of the database, and there is no need to adjust the bite to allow the doctor or patient to have more One option is to decide if you want to retain the original crown or use the crown built into the database.

The detailed description of the present invention and the technical description of the present invention are further illustrated by the embodiments, but it should be understood that these embodiments are for illustrative purposes only and are not to be construed as limiting.

Referring to FIG. 1 and FIG. 2 , the present invention discloses a dental patching and sputum complex digital documenting and manufacturing method, which mainly comprises the following steps: pre-surgery scan 110, before the operation of the patient's treated tooth through the scanning device. The shape scan is used to create a first digital model file 121.

Wherein, the pre-operative scan 110 includes a conventional method of first using a plaster to reshape a patient's dental mold, and then feeding the dental mold into a dental model scanner to obtain the first digital model file 121. The known dental model scanner includes a mine. Optical scanning devices such as shooting and projection. The scanning device for the pre-surgery scan 110 also includes an intraoral scanning device. The intraoral scanning device is directly photographed through the sensor into the patient's mouth, and the first digital model file 121 is created after the shape of the tooth is obtained.

Alternatively, the pre-operative scan 110 is to apply computed tomography (CT) photography to directly capture the intra-orbital tomographic data of the patient, including the shape of the teeth, the bone, the neural tube, and the like for establishing the first digital model file 121. If you scan by computed tomography (CT), the appearance of the teeth will be scanned relative to the intraoral scanner, and the information on the structure of the teeth will be displayed. The information of the warning can be more abundant, and the safety warning can be achieved in the dental treatment. Effect. The above-mentioned dental model scanner, intraoral scanning device, and computed tomography (CT) imaging are known techniques, and are not the focus of this patent, and will not be further described herein.

After the pre-surgery scan 110, followed by optical positioning and turning treatment 130, the optical positioning system is used to track the medical device, the turning tool optical positioning is combined with the first digital model file 121, and the treated tooth is turned into abutment tooth. And the turning process creates a second digit model file 122. The optical positioning and turning treatment 130 mainly uses the space 3D positioning method to record the whole process of the user turning and grinding the teeth. When the turning is wrong, some warnings can be achieved during the turning process, and the safe and precise turning is also achieved, also because of the record. All the teeth that have been turned off and the remaining teeth (abutment teeth) can be used directly to make the fixed denture-crown for the patient.

The optical positioning system for tracking medical devices is a known technique, such as the "Optical Object Tracking System" of U.S. Patent No. 6,675,040, which discloses an optical detection system for recording optical connection. The location of the instrument in the space of the detected object, combined with the data processor, image scanning data, and computer and related graphic display, can be used to search for instruments in surgery, diagnosis, and treatment settings. , the subject, the patient, and the location of the device. The subsequent market also discloses related improved technologies, so the technology for tracking medical devices through optical positioning systems is a known technology, and is not the focus of this patent, and will not be further described herein.

After the optical positioning and turning treatment 130, a solid model calculation 140 is then performed to reverse the patient's autologous process by turning the treated tooth into abutment tooth through the second digital model file 122 previously established by the turning process. Crown model file 150. The autogenous crown model file 150 is produced from all of the turned teeth and the remaining teeth (support teeth) turning data, including the inner structure of the crown that engages the abutment teeth.

After the solid model calculation 140, since the autogenous crown model file 150 is generated by recording all the teeth that have been turned off and the remaining teeth (support teeth), the fixed denture 200 can be directly processed by using the data. Making a fixed denture 200 through Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) of the denture turning tool system, combining the second digital model file 122 and the self-crown model The file 150 determines the inner and outer structure 210 of the crown, and then automatically turns the prosthesis 220 through the tool to produce a fixed denture that meets the needs of the patient. The fixed denture includes a crown and a bridge.

Referring to FIG. 3 again, the processed fixed denture 200 further includes a crown selection 230, wherein the crown is selected 230 in the physician or the patient's patient does not use the appearance of the original tooth, or the original tooth appearance cannot be viewed. In use, a number of crown model files 232 conforming to the patient can be selected from a crown database 231 through the software; a digital crown adjustment file 232 corresponding to the patient is selected, and then a digital virtual adjustment bite 240 is performed, through the known The tooth occlusal surface simulates the crown method to virtually adjust the occlusion; the digital virtual adjustment occlusion 240 is combined with the digital crown model file 232 and the self-crown model file file 150 to determine the inner and outer structure 210 of the crown, and then the tool is automatically turned to produce the denture 220, making a fixed denture that meets the needs of the patient, the fixed denture including a crown and a bridge.

Referring to FIG. 4, the foregoing method can be applied to the teaching training of the preparation of the fixed denture, which mainly includes the following steps: the trainee obtains a tooth model in which the teaching digit model file 310 has been established, and the teaching digit model file 310 can be a standard tooth. The tooth model, or a tooth model that utilizes gypsum to reproduce the patient, can be formed in a manner that is established as described above for the first digital model file 121 or by a uniform standard of the instructor.

Next, optical positioning and turning practice 320 is performed. The optical positioning system is used to track the medical device through the optical positioning system, and the optical positioning of the turning tool is combined with the teaching digital model file 310 to turn the tooth model into abutment tooth shape 321 and The turning process creates a second digit model file 322.

After the optical positioning and turning practice 310, the physical model calculation 330 is performed, and the original crown profile 311 of the dental model in the teaching digital model file 310 and the second digital model file 322 are turned into the abutment teeth. A crown model file 340 is created in the reverse direction. The crown model file 340 is combined with the second digital model file 322 and the original crown profile 311 to determine the inner and outer structures of the crown.

Then, the fixed dentures 350 are processed according to the crown model file 340, and the fixed dentures required for manufacturing are produced by computer-assisted manufacturing, and the fixed dentures include one of a crown and a bridge.

Finally, the aforementioned fixed denture is sleeved on the abutment tooth 360. In this step, the preparation result of the trained person's turning and fixed denture can be evaluated, and the second digital model file 322 established in combination with the aforementioned turning process can perform digital and physical. Assessment.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

110. . . Preoperative scan

121. . . First digital model file

122. . . Second digit model file

130. . . Optical positioning and turning treatment

140. . . Entity model calculus

150. . . Autogenous crown model file

200. . . Making fixed dentures

210. . . Inner and outer structure of the crown

220. . . Automatic turning to produce dentures

230. . . Crown selection

231. . . Crown database

232. . . Digital crown model file

240. . . Digital virtual adjustment bite

310. . . Teaching digital model file

311. . . Crown profile

320. . . Optical positioning and turning practice

321. . . Abutment tooth profile

322. . . Second digit model file

330. . . Entity model calculus

340. . . Crown model file

350. . . Making fixed dentures

360. . . Fixed denture sleeve on the aforementioned abutment teeth

FIG. 1 is a schematic diagram 1 of an implementation flow of the present invention.

FIG. 2 is a schematic diagram 2 of an implementation flow of the present invention.

FIG. 3 is a schematic diagram 3 of an implementation flow of the present invention.

4 is a schematic diagram of a teaching training process of the present invention.

110. . . Preoperative scan

121. . . First digital model file

122. . . Second digit model file

130. . . Optical positioning and turning treatment

140. . . Entity model calculus

150. . . Autogenous crown model file

200. . . Making fixed dentures

Claims (13)

The invention relates to a dental patching and squatting complex digital documenting and manufacturing method, which mainly comprises the following steps: pre-operative scanning, scanning a shape scan of a patient's treated tooth through a scanning device to establish a first digital model. The optical positioning and turning treatment, the way of tracking the medical device through the optical positioning system, the optical positioning of the turning tool is combined with the first digital model file, the treated tooth is turned into abutment tooth, and the turning process is established. Two-digit model file; the solid model calculation, through the second digital model file previously established by the turning process, the process of turning the treated tooth into the abutment tooth reversely establishes an autogenous crown model file of the patient; and processing The fixed denture is made, and the fixed dentures required by the patient are made through computer-aided design and manufacturing processing, combined with the second digital model file and the self-crown model file. The method of claim 1, wherein the pre-operative scan comprises first using a plaster to reproduce the dental model of the patient, and then feeding the dental mold into the dental model scanner to obtain the first digital model file. The method of claim 2, wherein the dental model scanner comprises an optical scanning device such as a laser type or a projection type. The method of claim 1, wherein the scanning device before the operation comprises an intraoral scanning device, which is directly photographed through the sensor into the patient's mouth, and the shape of the tooth is obtained to establish the first digital model file. The method of claim 1, wherein the pre-operative scan is to apply computed tomography (CT) photography to establish the first digital model file. The method of claim 1, wherein the fixed denture comprises one of a crown and a bridge. The method of claim 1, wherein the processing of the fixed denture combined with the second digital model file and the self-crown model file determines the inner and outer structures of the crown, and then the tool is automatically turned by the tool. Fixed denture. The method of claim 1, wherein the processing the fixed denture further comprises selecting a crown, and selecting a number of crown model files conforming to the patient from the crown database through the soft body. For example, in the method of claim 8, wherein a digital virtual adjustment bite is performed after selecting a digital crown model file conforming to the patient. The method of claim 9, wherein the digital virtual adjustment is combined with the digital crown model file and the self-crown model file to determine the inner and outer structures of the crown, and then the tool is automatically turned to produce the fixing. Denture. A teaching training for dental patching and squatting complex digital documenting and production, which mainly comprises the following steps: the trained person obtains a tooth model that has established a teaching digital model file; optical positioning and turning internship, and tracks the medical device through the optical positioning system The method of combining the optical positioning of the turning tool with the teaching digital model file, turning the tooth model into abutment tooth, and establishing a second digital model file for the turning process; the solid model calculation, through the original tooth of the tooth model The crown profile and the second digit model file will be used to form a crown model file in the process of cutting into the abutment teeth; the fixed denture is machined, and the fixed fixture is processed through the computer aided manufacturing process through the crown model file. And the fixed denture is placed on the abutment teeth to evaluate the preparation result of the trained person's turning and fixed denture. The teaching training described in claim 11, wherein the fixed denture comprises one of a crown and a bridge. The teaching training according to claim 11, wherein the crown model file is combined with the second digital model file and the original crown profile to determine the inner and outer structures of the crown.