WO2018112724A1

WO2018112724A1 - Method and device for manufacturing complete denture based on data mining

Info

Publication number: WO2018112724A1
Application number: PCT/CN2016/110957
Authority: WO
Inventors: 孙玉春; 王勇; 钟伟秋; 陈虎; 周永胜; 邓珂慧
Original assignee: 北京大学口腔医学院
Priority date: 2016-12-20
Filing date: 2016-12-20
Publication date: 2018-06-28
Also published as: CN106687068A; CN106687068B

Abstract

A method and a device for manufacturing a complete denture based on data mining, which relates to the field of oral medicine. The method for manufacturing a complete denture comprises: acquiring alveolar ridge data of an edentulous patient (101); selecting, according to the alveolar ridge data, a target denture template in a complete denture template database (102); and acquiring complete denture design data according to the target denture template and the alveolar ridge data (103). By means of this method, alveolar ridge data of a patient can be matched with standard denture template data in a template database so as to obtain a standard denture template suitable for the patient. Based on this template, the complete denture design is further performed so as to omit the step of a technician performing detailed manual design and manufacturing, thereby improving the degree of automation of the complete denture design and improving the efficiency of the complete denture manufacturing.

Description

Method and device for making full denture based on data mining

Technical field

The invention relates to the field of stomatology, in particular to a method and a device for manufacturing full denture based on data mining.

Background technique

According to the third national oral health epidemiological survey, there are more than 10 million edentulous patients in China. Although implant restoration is a more desirable method of repairing dentition, conventional full denture remains the preferred treatment for most edentulous patients due to local anatomical conditions, general health and economic conditions. At the same time, conventional full denture is also an important diagnostic tool for edentulous implant restoration and one of the transitional repair methods.

CAD/CAM (Computer Aided Design/Computer Aided Manufacture) technology has been applied in the field of oral prosthetics since the 1980s, using high-precision digital impressions and intelligent restoration-specific auxiliary design. Software and multi-axis CNC cutting or 3D printing technology can produce more stable and more reliable prostheses, and have more and more in-depth and wide-ranging applications in fixed repair. However, the development of digital technology in the field of complete denture restoration has been slow. One of the important reasons is that it is difficult to record the functional pressure impression and jaw position required for full denture restoration, and to balance the teeth and dentures. The clinical concept of key steps such as high-efficiency digital processing requires complete and accurate interpretation through three-dimensional digital quantitative methods.

In recent years, more and more scholars have begun to focus on digital solutions for complete dentures. More and more research has been done on digital denture digital restoration technology, and a number of practical full denture digital restoration systems have been formed. At present, the complete denture digital repair system available at home and abroad includes the AvaDent system in the United States, the Dentca system in the United States, the FSD system of the Peking University Stomatological Hospital in China, the Ceramill FDS system in Germany, the Dentalwings system in Canada, and the 3shape system in Denmark. However, the above-mentioned systems use the manual forward construction method to design the artificial dentition and polished surface shape of the complete denture. The personalized balance occlusion relationship and the aesthetic shape design effect are still difficult to accurately and quickly realize, and the 3D digitization is not fully utilized. The advantages of precision, automation and efficiency of technology.

Summary of the invention

It is an object of the present invention to improve the efficiency of full denture manufacture.

According to an aspect of the present invention, a method for manufacturing a full denture comprises: obtaining alveolar ridge data of a edentulous patient; selecting a target denture template in the complete denture template database according to alveolar ridge data; according to the target denture template And alveolar ridge data to obtain full denture design data.

Optionally, obtaining alveolar ridge data of the edentulous patient includes: obtaining alveolar ridge data according to intraoral three-dimensional scan data, impression scan data, and/or model scan data of the edentulous patient, wherein the alveolar ridge data includes : jaw curve data, base margin line data, and/or alveolar ridge data; according to alveolar ridge data, selecting a target denture template based on the complete denture template database includes: based on jaw curve data, base edge line data, and/or Or alveolar ridge data Select the target denture template in the full denture template database.

Optionally, the method further includes: determining a combination manner of the artificial front and rear tooth models according to the patient's alveolar ridge data; selecting the denture template in the full denture template database according to the alveolar ridge data includes: screening all according to the combination of the artificial front and rear tooth models The standard denture template in the denture template database is used to obtain the initial denture template; the alveolar ridge data is matched in the initial screening denture template to obtain the target denture template.

Optionally, matching the alveolar ridge data in the initial screening denture template, obtaining the target denture template comprises: screening the initial screening denture template according to the jaw curve data, obtaining the secondary screening denture template; screening the secondary screening according to the base edge line data The denture template was used to obtain three screening denture templates; the denture template was screened three times according to the alveolar ridge data to obtain the target denture template.

Optionally, obtaining the complete denture design data according to the target denture template and the alveolar ridge data includes: registering the target denture template according to the patient's jaw curve data; and manually registering the single artificial tooth scan data to the target denture template On the dentition, the dental denture template data is obtained; the spatial position and/or posture of the single artificial tooth in the dental denture template data is finely adjusted according to the aesthetic function requirement, and the optimized denture template is obtained; the denture template is optimized and the alveolar surface of the patient is optimized. Data fusion to obtain full denture design data.

Optionally, the method further includes: adding the full denture design data to the full denture template database.

Optionally, the method further comprises: scanning a plurality of full dentures, obtaining standard denture template data; analyzing and classifying the standard denture template data, and generating a full denture template database.

Optionally, the method further comprises: making a full denture according to the full denture design data.

By such a method, the patient's alveolar ridge data can be matched with the standard denture template data in the template library, thereby obtaining a standard denture template suitable for the patient and having a good balance occlusion relationship, based on which the template is further full-mouthed. The denture design eliminates the technician's manual detailed design and manufacturing steps, improves the automation of the full denture design, and improves the efficiency of full denture production.

According to another aspect of the present invention, a full denture manufacturing apparatus is provided, comprising: an alveolar ridge data acquisition module for acquiring alveolar ridge data of a patient; and a target denture template acquisition module for arranging data according to alveolar ridge The target denture template is selected in the full denture template database; the full denture design module is used to obtain the complete denture design data according to the target denture template and the alveolar ridge data.

Optionally, the alveolar ridge data acquisition module is specifically configured to acquire alveolar ridge data according to intraoral three-dimensional scan data, impression scan data, and/or model scan data of the edentulous jaw patient, wherein the alveolar ridge data includes: a jaw arch Curve data, base edge line data, and/or alveolar ridge data; the target denture template acquisition module is specifically configured to select in the full denture template database based on the jaw curve data, the base edge line data, and/or the alveolar ridge data. Target denture template.

Optionally, the method further includes: an artificial tooth combination determining module, configured to determine a combination manner of the artificial front and rear tooth models according to the patient's alveolar ridge data; the target denture template obtaining module includes: an initial screening unit, configured to be based on the artificial front and rear tooth models The combination method selects the standard denture template in the complete denture template database to obtain the initial screening denture template; the target template screening unit is used to match the alveolar ridge data in the initial screening denture template to obtain the target denture template.

Optionally, the target template screening unit comprises: a secondary screening subunit, configured to screen the primary screening denture template according to the jaw curve data, and obtain a secondary screening denture template; and three screening subunits for screening according to the base edge line data. The denture template was screened twice, and the denture template was obtained three times. The sub-unit was screened four times to screen the denture template three times according to the alveolar ridge data to obtain the target denture template.

Optionally, the full denture design module includes: a primary registration unit for registering the target denture template according to the patient's jaw curve data; and a dental unit for registering the single artificial tooth scan data one by one to the target denture The artificial tooth dentition of the template is used to obtain the dental denture template data; the pose optimization unit is used for finely adjusting the spatial position and/or posture of the single artificial tooth in the dental denture template data according to the aesthetic function requirement, and obtaining the optimized denture template; The fusion unit is configured to fuse the optimized denture template with the patient's alveolar ridge surface data to obtain full denture design data.

Optionally, the method further includes: a data update module, configured to add the full denture design data to the full denture template database.

Optionally, the method further includes: a template library generating module, configured to scan multiple dentures of multiple models, obtain standard denture template data; analyze and classify the standard denture template data, and generate a full denture template database.

Optionally, the method further includes: a making module for making a full denture according to the full denture design data.

Such a device is capable of matching the patient's alveolar ridge data with standard denture template data in a template library to obtain a standard denture template suitable for the patient, based on which a further full denture design is performed The steps of manual detailed design and fabrication by the technician are omitted, the automation degree of the complete denture design is improved, and the efficiency of full denture production is improved.

According to still another aspect of the present invention, a full denture manufacturing apparatus is provided, comprising: a memory; and a processor coupled to the memory, the processor being configured to perform any one of the above mentioned based on an instruction stored in the memory Full denture manufacturing method.

Such a device is capable of matching the patient's alveolar ridge data with standard denture template data in a template library to obtain a standard denture template suitable for the patient, based on which a further full denture design is omitted, thereby omitting the technician's manual The detailed design and manufacturing steps improve the automation of the complete denture design and improve the efficiency of full denture production.

According to still another aspect of the present invention, a computer readable storage medium is provided having stored thereon computer program instructions that, when executed by a processor, implement the steps of any of the full denture manufacturing methods mentioned above.

Such a computer readable storage medium is capable of matching the patient's alveolar ridge data with standard denture template data in the template library during instruction execution to obtain a standard denture template suitable for the patient, based on which further full denture is performed The design eliminates the technician's manual detailed design and manufacturing steps, improves the automation of the full denture design, and improves the efficiency of full denture production.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flow chart of one embodiment of a method for making a full denture of the present invention.

2 is a flow chart of another embodiment of a full denture manufacturing method of the present invention.

3 is a flow chart of one embodiment of alveolar ridge data matching in the full denture manufacturing method of the present invention.

4 is a flow chart of one embodiment of a full denture design according to a target denture template in the full denture manufacturing method of the present invention.

Fig. 5 is a flow chart showing still another embodiment of the full denture manufacturing method of the present invention.

Figure 6 is a schematic illustration of one embodiment of a full denture manufacturing apparatus of the present invention.

Figure 7 is a schematic illustration of another embodiment of a full denture manufacturing apparatus of the present invention.

8 is a schematic view of an embodiment of a target denture template acquisition module in a full denture manufacturing device of the present invention; Figure.

Figure 9 is a schematic illustration of one embodiment of a full denture design module in a full denture manufacturing device of the present invention.

Fig. 10 is a schematic view showing still another embodiment of the full denture manufacturing apparatus of the present invention.

Figure 11 is a schematic view of still another embodiment of the full denture manufacturing apparatus of the present invention.

Figure 12 is a schematic illustration of another embodiment of a full denture manufacturing apparatus of the present invention.

detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

A flow chart of one embodiment of a full denture manufacturing method of the present invention is shown in FIG.

In step 101, the patient's alveolar ridge data is acquired. In one embodiment, the alveolar ridge data can be obtained by scanning the patient's alveolar ridge or alveolar ridge model.

In step 102, the target denture template is selected in the full denture template database based on the alveolar ridge data. The full denture template database includes multiple standard denture templates, which can be full denture scan data or full denture design data. In one embodiment, the alveolar ridge data can be fuzzy matched to the data in the full denture template database to obtain a standard denture template that best matches the patient's alveolar ridge data as the target denture template.

In step 103, full denture design data is obtained from the target denture template and alveolar ridge data. In one embodiment, the teething, adjustment, and fusion with the patient's alveolar ridge surface data can be performed on a template basis to obtain full denture design data. In one embodiment, since the target denture template and the patient's alveolar ridge data may not be perfectly matched, fine tuning may be performed on the basis of the target denture template to improve the accuracy of the full denture design data.

In the practice of denture making practice, the inventors have found that the shape of the complete denture which can be designed and manufactured for different patients according to the individual condition of the patient is roughly divided into several types, and the difference of the complete denture of the same type is small. In this way, the patient's alveolar ridge data can be matched with the standard denture template data in the template library to obtain a standard denture template suitable for the patient, based on which the template performs further full denture design instead of the traditional The cumbersome and complicated manual steps of hand-made full dentures improve the automation of full denture design and the efficiency of full denture production.

In one embodiment, the acquired patient's alveolar ridge data may include one or more of jaw curve data, base edge line data, and alveolar ridge data. In one embodiment, the patient's alveolar ridge can be impression molded or The alveolar ridge model scan data is used for feature extraction to obtain the jaw curve data, the base edge line data, and the alveolar ridge data. The alveolar ridge data can also be obtained by intraoral three-dimensional scanning. The target denture template is obtained by matching one or more of the jaw curve data, the base edge line data, and the alveolar ridge data with the standard denture template.

Through such a method, explicit feature data can be used for matching to obtain the target denture template, thereby reducing the amount of calculation, reducing the performance requirements for implementing the device, and further improving the efficiency and facilitating the extended application.

A flow chart of another embodiment of the full denture manufacturing method of the present invention is shown in FIG.

In step 201, the patient's alveolar ridge data is acquired. In one embodiment, the alveolar ridge data can be obtained by scanning the patient's alveolar ridge or alveolar ridge model. In one embodiment, a scanning operation can be performed using a scanner of the Smart Optics 880 Dental Scanner model of the company Smart Optics.

In step 202, a combination of the patient's artificial front and rear tooth models is determined. The determination of the tooth model may include selecting the upper anterior teeth, the lower anterior teeth, and the posterior teeth.

In the process of selecting the upper anterior teeth model, if the standard wax levee with the jaw plane and the fullness, the midline and the horn line is clinically provided, the upper anterior teeth model can be determined based on the standard wax dam, which may specifically include:

(1) The type of the artificial tooth is selected according to the facial contour of the patient, and the type of the artificial tooth may include three types of S (Square, square circle), T (Tapering, pointed circle), and O (Ovoid, oval).

(2) Measure the curve distance of the cut-to-edge line between the double-sided corner lines on the patient's occlusal levee. After subtracting 4-5mm, compare with the same-dental artificial teeth of various widths to select the appropriate width of the upper anterior teeth, and select the standard width. The closest model.

In the case where the standard wax embankment is not provided in the clinic, the top line of the bilateral alveolar ridge should be drawn first and then extended forward and backward, and then the bisector of the incisor nipple (half of the labial side) is drawn and extended to the left and right and the alveolar ridge. The top extension lines intersect. The distance between the two intersections is taken to determine the width of the anterior teeth (the two intersections are the central axis points of the bilateral canines).

According to the model of the selected upper front teeth, the model of the lower front teeth can be determined one by one.

When selecting the posterior teeth, choose the distance according to the distal direction of the maxillary canine (the projection point of the intersection of the angle line and the cutting edge line on the mandibular alveolar ridge, moving about 1.5mm to the far side) and the distance of 2-5 mm before the back pad of the mandibular molar. To confirm the length of the posterior teeth 4-7, it is possible to selectively discharge 4 or 7 teeth according to the absorption of the alveolar ridge and the steep condition, thereby obtaining the model of the artificial back teeth of the edentulous patient.

In one embodiment, after the combination of the artificial front and rear tooth models is completed, the data can be entered to perform the next screening operation.

In step 203, the standard denture template in the complete denture template database is selected according to the obtained combination of the artificial front and rear tooth models, and the initial screening denture template is obtained; and the alveolar ridge data is matched in the initial screening denture template. Take the target denture template. In one embodiment, the full denture template database includes manual front and rear tooth model information of each standard denture template, and the standard denture templates can be classified and stored according to the combination of the artificial front and rear tooth models, so as to select the corresponding classification in the matching process. Standard denture templates for further screening matches.

In step 204, full denture design data is obtained from the target denture template and alveolar ridge data.

Through such a method, the patient's artificial front and rear tooth models can be obtained first, and preliminary screening is performed on the basis, thereby greatly reducing the amount of matching data, further improving the efficiency of the full denture manufacturing, and reducing the operation of the device. Level requirements.

A flowchart of one embodiment of alveolar ridge data matching in the full denture manufacturing method of the present invention is shown in FIG.

In step 301, the standard denture template in the complete denture template database is screened according to the obtained combination of the artificial front and rear tooth models, and the initial screening denture template is obtained. In one embodiment, the full denture template database includes manual front and rear tooth model information of each standard denture template, and the standard denture templates can be classified and stored according to the combination of the artificial front and rear tooth models.

In step 302, the primary screening denture template is screened according to the jaw curve data to obtain a secondary screening denture template. In one embodiment, the full denture template database includes jaw curve data for each standard denture template. In one embodiment, a standard denture template with a threshold of difference within a predetermined range can be screened as a secondary screening denture template. In one embodiment, the jaw curve data includes the jaw relationship data; in the screening process of the jaw curve, the positional relationship of the upper and lower jaw arch curves and the width of the upper and lower jaw arches can be matched to achieve accuracy. Matching effect.

In step 303, the secondary screening denture template is screened according to the base edge line data, and the three screening denture templates are obtained. In one embodiment, the full denture template database includes base edge line data in accordance with each standard denture template. In one embodiment, a standard denture template with a threshold of difference within a predetermined range can be screened as a tertiary screening denture template.

In step 304, the denture template is screened three times according to the alveolar ridge data to obtain the target denture template. In one embodiment, the full denture template database includes alveolar data in accordance with each standard denture template. In one embodiment, a template having the smallest difference from the alveolar ridge data in the patient's alveolar ridge data may be selected as the target denture template in the three screening denture templates.

Through such a method, the standard denture template in the full denture template database can be matched by the combination of artificial front and rear tooth models, jaw curve, base edge line and alveolar ridge data. Using enough eigenvalues can improve the accuracy of the matching and obtain the target denture template that is most suitable for the patient. On the other hand, compared with the fuzzy matching method, the method of layer-by-layer filtering and narrowing the range can reduce the calculation amount and reduce the pair. The performance requirements of the device improve the efficiency of full denture production.

A flowchart of one embodiment of a full denture design in accordance with a target denture template in the full denture manufacturing method of the present invention is shown in FIG.

In step 401, the target denture template is registered based on the patient's jaw curve data. In one embodiment, registration can be performed in three-dimensional reverse engineering software with the jaw curve as a registration basis. In one embodiment, the three-dimensional reverse engineering software may employ Geomagic Studio software from Raindrop Geomagic, USA. In one embodiment, the spatial position and posture of the target denture template can be adjusted until appropriate.

In step 402, a single artificial tooth scan data is registered one by one to the artificial dentition of the target denture template to obtain the dental denture template data. In one embodiment, the individual tooth scan data of each model can be used to perform one-to-one row operation.

In step 403, the spatial position and posture of the single artificial tooth in the dental denture template data are finely adjusted according to the aesthetic function requirement, and the optimized denture template is obtained.

In step 404, the optimized denture template is fused with the patient's alveolar ridge surface data to obtain full denture design data.

Through such a method, further fine adjustment can be performed on the basis of the obtained standard denture template which is most suitable for the patient, so that the obtained full denture design data is more in line with the user's needs, and the data similarity of the patient's alveolar ridge is fully utilized. On the basis of further consideration of the differences between individuals, make up for the lack of aesthetic design effects in the full denture positive modeling, improve the aesthetics of the full denture and patient comfort.

A flow chart of still another embodiment of the full denture manufacturing method of the present invention is shown in FIG.

In step 501, a full denture template database is created. In one embodiment, multiple dentures of multiple models can be scanned, standard denture template data can be acquired, and standard denture template data can be analyzed and classified to generate a full denture template database. In one embodiment, various models and types of finished full dentures can be prepared to obtain their scan data. In another embodiment, in order to improve the quality of the standard denture template, a full-length denture prepared by a senior technician or an expert can be used as a template to scan and generate a complete denture template database. To ensure the comprehensiveness of the full denture template database, at least one of each type of full denture can be scanned. In one embodiment, three-dimensional scan data of the denture dentition and the base polishing surface can be acquired, and one or more of the denture curve data, the base edge line data, and the alveolar ridge data of the denture are extracted.

In step 502, the patient's alveolar ridge data is acquired. In one embodiment, the alveolar ridge data can be obtained by scanning the patient's alveolar ridge or alveolar ridge model.

In step 503, the target denture template is selected in the full denture template database based on the alveolar ridge data.

In step 504, full denture design data is obtained from the target denture template and alveolar ridge data.

In step 505, the full denture design data is added to the full denture template database to enrich the full denture template database. In an embodiment, the feature information of the full denture design data may also be extracted to facilitate the feature matching operation.

In step 506, a complete denture is made from the full denture design data. In one embodiment, the full denture can be made from the full denture design data using the prosthetic-specific assisted design software and the multi-axis CNC cutting technique; the full denture can also be printed using the three-dimensional printing technique.

Through such a method, the full denture template database can be generated as the basis of data matching, and the target denture template can be obtained conveniently; the full denture template database can be continuously updated and enriched, and the self-learning effect can be achieved, and the performance of the device is gradually improved in use. Further improve the accuracy of the matching; the full denture can be made by digital production technology, which further improves the accuracy and production efficiency of the complete denture.

A schematic view of one embodiment of a full denture manufacturing apparatus of the present invention is shown in FIG. The alveolar ridge data acquisition module 601 is capable of acquiring the alveolar ridge data of the patient. In one embodiment, the alveolar ridge data can be obtained by scanning the patient's alveolar ridge or alveolar ridge model. The target denture template acquisition module 602 can select the target denture template in the full denture template database based on the alveolar ridge data. The full denture template database includes multiple standard denture templates, which can be full denture scan data or full denture design data. In one embodiment, the alveolar ridge data can be fuzzy matched to the data in the full denture template database to obtain a standard denture template that best matches the patient's alveolar ridge data as the target denture template. The full denture design module 603 obtains full denture design data based on the target denture template and alveolar ridge data. In one embodiment, the teething, adjustment, and fusion with the patient's alveolar ridge surface data can be performed on a template basis to obtain full denture design data. In one embodiment, since the target denture template and the patient's alveolar ridge data may not be perfectly matched, fine tuning may be performed on the basis of the target denture template to improve the accuracy of the full denture design data.

Such a device is capable of matching the patient's alveolar ridge data with standard denture template data in a template library to obtain a standard denture template suitable for the patient, based on which a further full denture design is omitted, thereby omitting the technician's manual Detailed design and manufacturing steps improve the automation of full denture design and improve The efficiency of full denture production.

In one embodiment, the acquired patient's alveolar ridge data may include one or more of jaw curve data, base edge line data, and alveolar ridge data. In one embodiment, the alveolar ridge data acquisition module 601 can perform feature extraction on the alveolar ridge impression or the alveolar ridge model scan data of the patient, and obtain the jaw curve data, the base edge line data, and the alveolar ridge data. The alveolar ridge data can also be obtained by three-dimensional scanning in the mouth. The target denture template acquisition module 602 matches one or more of the jaw curve data, the base edge line data, and the alveolar ridge data with the standard denture template to obtain a target denture template.

Such a device can use the explicit feature data to match to obtain the target denture template, thereby reducing the amount of calculation, reducing the performance requirements for implementing the device, further improving the efficiency, and facilitating the expansion of the application.

A schematic view of another embodiment of the full denture manufacturing apparatus of the present invention is shown in FIG. The structure and function of the alveolar ridge data acquisition module 701 and the artificial tooth combination determination module 704 are similar to those in the embodiment of FIG. 6. The full denture preparation device further includes a target denture template acquisition module 702, which is capable of determining a combination of artificial front and rear tooth models based on the patient's alveolar ridge data. In one embodiment, data entry can be performed by the physician based on the alveolar ridge data to determine the artificial front and rear tooth models. The full denture design module 703 can filter the standard denture template in the complete denture template database according to the obtained combination of the artificial front and rear tooth models, obtain the initial screening denture template, and match the alveolar ridge data in the initial screening denture template to obtain the target. Denture template.

Such a device can first acquire the patient's artificial front and rear tooth models, and perform preliminary screening on the basis of the device, thereby greatly reducing the amount of matching data, further improving the efficiency of the complete denture production, and reducing the level of operation of the device. Claim.

A schematic diagram of one embodiment of a target denture template acquisition module in the full denture preparation device of the present invention is shown in FIG. The primary screening unit 81 can filter the standard denture template in the complete denture template database according to the obtained combination of the artificial front and rear tooth models, and obtain the primary screening denture template. In one embodiment, the full denture template database includes various standards. The artificial front and rear tooth model information of the denture template can be classified and stored according to the combination of the artificial front and rear tooth models, so as to select the corresponding standard denture template for further screening and matching in the matching process; the target template screening unit 82 can Match the alveolar ridge data in the initial screening denture template to obtain the target denture template. The target template screening unit 82 includes a secondary screening subunit 821, a tertiary screening subunit 822, and a quadratic screening subunit 823, wherein the secondary screening subunit 821 is capable of screening the primary screening denture template according to the jaw arch curve data to obtain a secondary screening. Denture template. In one embodiment, the full denture template database includes jaw curve data for each standard denture template. In one embodiment, it can be filtered out A standard denture template with a threshold of difference within a predetermined range is used as a secondary screening denture template. The three-time screening sub-unit 822 is capable of screening the secondary screening denture template according to the base edge line data to obtain three screening denture templates. In one embodiment, the full denture template database includes base edge line data in accordance with each standard denture template. In one embodiment, a standard denture template with a threshold of difference within a predetermined range can be screened as a tertiary screening denture template. The quadruple screening subunit 823 is capable of screening the denture template three times according to the alveolar ridge data to obtain the target denture template. In one embodiment, the full denture template database includes alveolar data in accordance with each standard denture template. In one embodiment, a template having the smallest difference from the alveolar ridge data in the patient's alveolar ridge data may be selected as the target denture template in the three screening denture templates.

Such a device can match the standard denture template in the full denture template database by means of a combination of artificial front and rear tooth models, jaw curve, base edge line and alveolar ridge data. The eigenvalue can improve the accuracy of the matching and obtain the target denture template that is most suitable for the patient. On the other hand, compared with the fuzzy matching method, the method of layer-by-layer filtering and narrowing the range can reduce the calculation amount and reduce the computing performance requirement of the device. Improve the efficiency of full denture production.

A schematic view of one embodiment of a full denture design module in a full denture manufacturing device of the present invention is shown in FIG. Wherein, the initial registration unit 901 is capable of registering the target denture template according to the curve curve data of the patient. In one embodiment, registration can be performed in three-dimensional reverse engineering software with the jaw curve as a registration basis. In one embodiment, the spatial position and posture of the target denture template can be adjusted until appropriate. The tooth unit 902 can register a single artificial tooth scan data one by one to the artificial dentition of the target denture template to obtain the dental denture template data. In one embodiment, the individual tooth scan data of each model can be used to perform one-to-one row operation. The posture optimization unit 903 can finely adjust the spatial position, posture, and the like of the single artificial tooth in the dental denture template data according to the aesthetic function requirement, and obtain the optimized denture template. The data fusion unit 904 can fuse the optimized denture template with the alveolar ridge surface data of the patient to obtain full denture design data.

Such a device can further fine-tune the obtained standard denture template which is most suitable for the patient, so that the full denture design data can be more in line with the user's needs, and the data similarity of the patient's alveolar ridge is fully utilized. Further considering the differences between individuals, the aesthetics of the complete denture and the comfort of the patient are improved.

A schematic view of still another embodiment of the full denture manufacturing apparatus of the present invention is shown in FIG. The structure and function of the alveolar ridge data acquisition module 1001, the target denture template acquisition module 1002, and the full denture design module 1003 are similar to those in the embodiment of FIG. 6. The full denture making device may further include a template library generating module 1004. The template library generation module 1004 is capable of creating a full denture template database. In one embodiment, multiple dentures of multiple models can be scanned, standard denture template data can be acquired, and standard denture template data can be analyzed and classified to generate a full denture template database. In one embodiment, various models and types of finished full dentures can be prepared to obtain their scan data. In another embodiment, in order to improve the quality of the standard denture template, a full-length denture prepared by a senior technician or an expert can be used as a template to scan and generate a complete denture template database. To ensure the comprehensiveness of the full denture template database, at least one of each type of full denture can be scanned. In one embodiment, three-dimensional scan data of the denture dentition and the base polishing surface can be acquired, and one or more of the denture curve data, the base edge line data, and the alveolar ridge data of the denture are extracted.

Such a device can generate a relatively complete full denture template database, improve the reliability of template matching, reduce the need for technician design, production experience and level, and improve the precision of full denture production.

In one embodiment, the full denture preparation device can further include a data update module 1005 that can incorporate full denture design data into the full denture template database to enrich the full denture template database. In one embodiment, the feature information of the full denture based on the full denture design data can also be extracted to facilitate the feature matching operation.

Such a device can continuously update and enrich the full denture template database to achieve self-learning effects, and gradually improve the performance of the device during use.

In one embodiment, the full denture preparation device can further include a fabrication module 1006 that can be used to make a full denture based on the full denture design data. In one embodiment, the full denture can be made from the full denture design data using the prosthetic-specific assisted design software and the multi-axis CNC cutting technique; the full denture can also be printed using the three-dimensional printing technique.

Such a device can produce a full denture using digital manufacturing technology, further improving the accuracy and production efficiency of the complete denture.

A schematic structural view of still another embodiment of the full denture manufacturing apparatus of the present invention is shown in FIG. The full denture making device includes a memory 1110 and a processor 1120. Wherein: the memory 1110 can be a magnetic disk, a flash memory or any other non-volatile storage medium. The memory is used to store instructions in a corresponding embodiment of the full denture manufacturing method. The processor 1120 is coupled to the memory 1110 and can be implemented as one or more integrated circuits, such as a microprocessor or a microcontroller. The processor 920 is configured to execute instructions stored in the memory, and is capable of full denture template matching and full denture design.

In an embodiment, as shown in FIG. 12, the full denture manufacturing device 1200 includes a memory 1210. And processor 1220. Processor 1220 is coupled to memory 1210 via BUS bus 1230. The full denture making device 1200 can also be connected to the external storage device 1250 via the storage interface 1240 to invoke external data, and can also be connected to the network or another computer system (not shown) via the network interface 1260. It will not be described in detail here.

In this embodiment, the full denture template matching and the full denture design can be realized by storing the data instruction through the memory and processing the above instruction by the processor.

In another embodiment, a computer readable storage medium having stored thereon computer program instructions that, when executed by a processor, implement the steps of a method in a corresponding embodiment of a full denture manufacturing method. Those skilled in the art will appreciate that embodiments of the invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code. .

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

So far, the present invention has been described in detail. In order to avoid obscuring the concept of the present invention, the description in the art is not described. Some details are known. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

The method and apparatus of the present invention may be implemented in a number of ways. For example, the methods and apparatus of the present invention can be implemented in software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described sequence of steps for the method is for illustrative purposes only, and the steps of the method of the present invention are not limited to the order specifically described above unless otherwise specifically stated. Moreover, in some embodiments, the invention may also be embodied as a program recorded in a recording medium, the program comprising machine readable instructions for implementing the method according to the invention. Thus, the invention also covers a recording medium storing a program for performing the method according to the invention.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to be limiting; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that The invention is not limited to the spirit of the technical solutions of the present invention, and should be included in the scope of the technical solutions claimed in the present invention.

Claims

A full denture manufacturing method, comprising:

Obtaining alveolar ridge data for edentulous patients;

Selecting a target denture template in the complete denture template database according to the alveolar ridge data;

Full denture design data is obtained from the target denture template and the alveolar ridge data.
The method of claim 1 wherein

The data of obtaining alveolar ridges of a edentulous patient include:

Obtaining the alveolar ridge data according to intra-oral three-dimensional scan data, impression scan data, and/or model scan data of the edentulous patient, wherein the alveolar ridge data includes: jaw curve data, base edge line data, and / or alveolar data;

According to the alveolar ridge data, selecting a target denture template based on the full denture template database includes:

The target denture template is selected in the full denture template database based on the jaw curve data, the base edge line data, and/or the alveolar ridge data.
The method according to claim 1 or 2, further comprising: determining a combination of artificial front and rear tooth models of the edentulous patient;

The selecting a denture template in the full denture template database according to the alveolar ridge data includes:

Screening the standard denture template in the complete denture template database according to the combination of the artificial front and rear tooth models, and obtaining the initial screening denture template;

Matching the alveolar ridge data in the primary screening denture template to obtain the target denture template.
The method of claim 3 wherein:

Matching the alveolar ridge data in the primary screening denture template, and acquiring the target denture template comprises:

The primary screening denture template is screened according to the curve of the jaw curve, and the secondary screening denture template is obtained;

The secondary screening denture template is screened according to the base edge line data, and the three screening denture templates are obtained;

The three screening denture templates are screened according to alveolar ridge data to obtain the target denture template.
Method according to claim 1, 2 or 4, characterized in that

The obtaining complete denture design data according to the target denture template and the alveolar ridge data includes:

Registering the target denture template according to the patient's jaw curve data;

Locating a single artificial tooth scan data one by one to the artificial dentition of the target denture template to obtain the dental denture template data;

Optimizing the spatial position and/or posture of the single artificial tooth in the dental denture template data according to the aesthetic function requirement, and obtaining an optimized denture template;

The optimized denture template is fused with the alveolar ridge surface data of the patient to obtain the full denture design data.
The method of claim 1, 2 or 4, further comprising:

Adding the complete denture design data to the full denture template database;

and / or,

Scanning multiple dentures of multiple models to obtain standard denture template data; analyzing and classifying the standard denture template data to generate the full denture template database.
The method of claim 1, 2 or 4, further comprising:

A full denture is made according to the full denture design data.
A full denture manufacturing device, comprising:

An alveolar ridge data acquisition module for acquiring alveolar ridge data of a edentulous patient;

a target denture template obtaining module, configured to select a target denture template in the full denture template database according to the alveolar ridge data;

A full denture design module for acquiring full denture design data based on the target denture template and the alveolar ridge data.
The device of claim 8 wherein:

The alveolar ridge data acquisition module is specifically configured to acquire the alveolar ridge data according to intraoral three-dimensional scan data, impression scan data, and/or model scan data of the edentulous jaw patient, wherein the alveolar ridge data includes: Jaw arch Line data, base edge line data, and/or alveolar data;

The target denture template acquisition module is specifically configured to select the target denture template in the full denture template database according to the jaw curve data, the base edge line data, and/or the alveolar ridge data.
Device according to claim 8 or 9, characterized in that

The method further includes: an artificial tooth combination determining module, configured to determine a combination manner of the artificial front and rear tooth models of the edentulous jaw patient;

The target denture template acquisition module includes:

An initial screening unit, configured to screen a standard denture template in the complete denture template database according to the combination of the artificial front and rear tooth models, and obtain an initial screening denture template;

And a target template screening unit, configured to match the alveolar ridge data in the primary screening denture template to obtain the target denture template.
The device of claim 10 wherein:

The target template screening unit includes:

a secondary screening subunit for screening the primary screening denture template according to the curve of the jaw curve to obtain a secondary screening denture template;

And three screening subunits for screening the secondary screening denture template according to the base edge line data, and obtaining three screening denture templates;

Four screening subunits for screening the three screening denture templates according to alveolar ridge data to obtain the target denture template.
A device according to claim 8, 9 or 11, wherein

The full denture design module includes:

a primary registration unit for registering the target denture template according to the jaw curve data of the edentulous jaw patient;

a dental unit for registering a single artificial tooth scan data one by one to an artificial dentition of the target denture template to obtain dental denture template data;

a posture optimization unit, configured to finely adjust a spatial position and/or posture of the single artificial tooth in the dental denture template data according to an aesthetic function requirement, and obtain an optimized denture template;

And a data fusion unit configured to fuse the optimized denture template with the alveolar ridge surface data of the edentulous patient to obtain the complete denture design data.
The device according to claim 8, 9 or 11, further comprising:

a data update module, configured to add the full denture design data to the full denture template database; and/or,

The template library generating module is configured to scan the full dentures of the plurality of models, obtain standard denture template data, analyze and classify the standard denture template data, and generate the full denture template database.
The device according to claim 8, 9 or 11, further comprising:

a making module for making a full denture according to the full denture design data.
A full denture manufacturing device, comprising:

Memory;

A processor coupled to the memory, the processor being configured to perform the method of any one of claims 1 to 7 based on instructions stored in the memory.
A computer readable storage medium having stored thereon computer program instructions, wherein the instructions are executed by a processor to perform the steps of the method of any one of claims 1 to 7.