CN106580495B - Dental 3D printing system - Google Patents
Dental 3D printing system Download PDFInfo
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- CN106580495B CN106580495B CN201611208548.0A CN201611208548A CN106580495B CN 106580495 B CN106580495 B CN 106580495B CN 201611208548 A CN201611208548 A CN 201611208548A CN 106580495 B CN106580495 B CN 106580495B
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- 238000010146 3D printing Methods 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 59
- 210000000214 mouth Anatomy 0.000 claims abstract description 43
- 239000007943 implant Substances 0.000 claims abstract description 31
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000000547 structure data Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000004458 analytical method Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 12
- 210000004195 gingiva Anatomy 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000011505 plaster Substances 0.000 claims description 9
- 238000007639 printing Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000013075 data extraction Methods 0.000 claims description 3
- 230000006798 recombination Effects 0.000 claims description 3
- 238000005215 recombination Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 24
- 238000003745 diagnosis Methods 0.000 abstract description 8
- 230000008521 reorganization Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 10
- 210000001519 tissue Anatomy 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- 210000003484 anatomy Anatomy 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 210000001847 jaw Anatomy 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 206010002091 Anaesthesia Diseases 0.000 description 2
- 230000037005 anaesthesia Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 239000004053 dental implant Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 208000008312 Tooth Loss Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 210000001909 alveolar process Anatomy 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037182 bone density Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000004262 dental pulp cavity Anatomy 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 210000002698 mandibular nerve Anatomy 0.000 description 1
- 210000004086 maxillary sinus Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Epidemiology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses a dental 3D printing system, which is characterized by comprising: an oral cavity data acquisition unit capable of acquiring image data of a gum surface and a tooth surface and image data of a hard tooth tissue, respectively; an oral cavity data processing part for performing three-dimensional image reorganization analysis to obtain three-dimensional implant structure data; a 3D printing part which receives the three-dimensional implant structure data through a digital receipt transmission part and performs 3D printing operation based on the data; and a data transmission part for providing a data transmission channel for the system; according to the invention, the accuracy of the data acquisition process is improved by acquiring and adaptively comparing and correcting the three-dimensional data of the oral cavity of the patient; meanwhile, the oral scanning, the oral image processing and the 3D printing technology are effectively integrated, so that the standardized, efficient and accurate diagnosis and treatment technology is realized.
Description
Technical Field
The invention relates to a dental implant manufacturing technology, in particular to a dental 3D printing system based on a 3D printing technology.
Background
In the field of oral medicine, particularly in the aspects of implant restoration and the like, the traditional guide plate is more clinically applied, the traditional guide plate is simple to manufacture and low in cost, but the traditional guide plate only considers the effect after implant restoration and the anatomical structure of a jaw bone to a certain extent, and has certain limitation on the conditions of multi-tooth loss and insufficient jaw bone quantity. To achieve good implant restoration effect, the method mainly depends on carefully examining the height, width, bone density and surrounding important anatomical structures of the alveolar ridge of the edentulous part before operation, making correct diagnosis and treatment plan, and accurately transferring preoperative design to the operation, although experienced doctors can accurately master the position, direction and depth of an implant in the operation according to X-ray images, due to individual difference of the jaw anatomical structures, limitation of radiation conditions and limitation of body position and visual field in the operation, deviation between the actual implant position and the predicted implant position is easy to occur, and under the condition, bone perforation of an implant area and damage of adjacent important anatomical structures such as alveolar nerve tubes, maxillary sinuses, incisional holes and adjacent teeth are easy to cause. And improper implant position also affects the repair of the superstructure, thereby affecting the function and beauty after repair. It can be said that although the oral implant technology is developed and gradually broken through and applied to the core technology, physicians with high technical level and abundant operation experience are still required to perform careful work for several hours, and high-intensity work such as diagnosis, anesthesia, implant selection, dental cast perfusion, temporary crown design and fabrication, denture revision assembly and the like is required. This is the main reason for the "high price, high risk" of oral implantations at present. Therefore, more convenient and reliable dental implant manufacturing technology is required to be searched.
Meanwhile, 3D printing is a technology for constructing an object by using a digital model file as a base and using a bondable material such as powdered metal or plastic and the like in a layer-by-layer printing mode. After more than 20 years of development, the technology is more skillful and accurate. The 3D printing technique is more accurate and it allows for more rapid prototyping than conventional methods such as casting, stamping, etching, etc. Compared with numerical control technology, it saves more material, especially on the difficult model of complicated structure of making more advantage. Due to the advantages of 3D printing technology, coupled with the rapid price reduction of 3D printing devices, 3D printing technology has been applied to many disciplines in recent years, although the medical community is no exception. In the field of oral medicine, 3D printing technology can be applied to repair of bone defects in oral and maxillofacial surgery, reconstruction and printing of root canals in department of stomatology, manufacture of orthodontic invisible appliances and manufacture of planting guide plates in oral implantation. However, the existing dental 3D printing has the defects of low manufacturing precision, inaccurate data acquisition process and the like.
Disclosure of Invention
In view of the defects in the prior art, the present invention aims to provide a novel dental 3D printing system based on 3D printing technology, which effectively overcomes many defects of the existing dental 3D printing technology through accurate acquisition and processing of patient oral cavity data and convenient and efficient 3D printing technology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a dental 3D printing system, comprising:
an oral cavity data acquisition part which can respectively obtain gingiva and tooth surface image data corresponding to a plaster model molded by using an impression material to carry out oral cavity impression on a patient and tooth hard tissue image data corresponding to direct scan on the oral cavity of the patient;
the oral cavity data processing part receives the image data of the surfaces of the gingiva and the teeth and the image data of the hard tissues of the teeth through the data receiving and transmitting part and carries out three-dimensional image recombination analysis so as to obtain three-dimensional implant structure image data;
a 3D printing unit which receives the three-dimensional implant structure image data through a data receiving and transmitting unit and performs a 3D printing operation based on the data;
and a data transmission part for providing a data transmission channel for the system.
Further, as preferred
The oral cavity data acquisition part comprises: a three-dimensional scanner capable of obtaining image data of the surfaces of gingiva and teeth corresponding to a plaster model molded by oral cavity impression of a patient using an impression material;
and an oral cavity cone beam CT machine for directly scanning the oral cavity of the patient to obtain the corresponding dental hard tissue image data.
Further, as preferred
The oral cavity data processing unit includes:
an oral data extraction unit capable of extracting corresponding external tooth image data from the received gum and tooth surface image data and extracting corresponding external tooth image data and internal tooth image data from the received hard tooth tissue image data;
the oral data matching unit can carry out self-adaptive comparison on the external image data of the two teeth and judge whether the external image data exceeds a set comparison threshold value, and if so, the oral data matching unit controls the oral data acquisition part to carry out the data acquisition process again; otherwise, directly outputting the internal image data of the tooth and the external image data of the tooth obtained by self-adaptive comparison calculation;
an oral data restructuring unit which reconstructs and analyzes a three-dimensional implant structure image including internal tooth data and external tooth data, that is, surface texture structure data, based on the obtained internal tooth image data and external tooth image data;
and the oral cavity data storage unit is used for locally storing the three-dimensional implant structure image.
Further, as preferred
The 3D printing part comprises:
an integrated frame;
the three-axis transmission component is arranged on the integrated machine frame and is an X-axis transmission component, a Y-axis transmission component and a Z-axis transmission component, wherein the X-axis transmission component comprises an X-axis transmission mechanism and a 3D printing head capable of moving along the X-axis direction, the Y-axis transmission component is arranged on the X-axis transmission component and drives the X-axis transmission mechanism to move along the Y-axis direction through the Y-axis transmission mechanism, and the Z-axis transmission component is arranged on the Y-axis transmission component and comprises a Z-axis transmission mechanism and a printing workbench capable of moving along the Z-axis direction;
and a print control section.
Further, as preferred
The data transmission part can be a wired and/or wireless transmission form data transmission channel provided by the system.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the accuracy of the data acquisition process is improved by acquiring and adaptively comparing and correcting the three-dimensional data of the oral cavity of the patient; meanwhile, the oral scanning, the oral image processing and the 3D printing technology are effectively integrated, and the standardized, efficient and accurate diagnosis and treatment technology is realized, so that the problems that misjudgment of doctors is easily caused by overlapping of 2D scanning images and the like are effectively solved, the risk of the doctors due to insufficient skills and experiences is further reduced, the workload of the doctors is reduced, and the diagnosis and treatment safety is improved.
Drawings
Fig. 1 is a schematic block diagram of a circuit corresponding to the system of the present invention.
Fig. 2 is a schematic block diagram of a circuit corresponding to the oral data processing unit according to the present invention.
Fig. 3 is a flow chart of core steps corresponding to the system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In view of the current development of oral implantation technology, i.e. though the core technology is gradually broken through and applied, physicians with high technical level and rich operation experience still need to perform careful work for hours, and high-intensity work such as diagnosis, anesthesia, implant selection, dental cast perfusion, temporary crown design and fabrication, denture modification and assembly is needed.
Therefore, the present invention designs a dental 3D printing system integrating technologies such as image digital acquisition, data reconstruction, standardized 3D printing and manufacturing, and specifically, as shown in fig. 1 to 3, the dental 3D printing system has:
An oral cavity data acquisition part which can respectively obtain gingiva and tooth surface image data corresponding to a plaster model which is molded by using an impression material to perform oral cavity impression on a patient and tooth hard tissue image data corresponding to direct scan of the oral cavity of the patient;
an oral cavity data processing part which receives the image data of the surfaces of the gingiva and the teeth and the image data of the hard tissues of the teeth through a data receiving and transmitting part and carries out three-dimensional image reorganization analysis to obtain three-dimensional implant structure data;
a 3D printing unit which receives the three-dimensional implant structure data via a data receiving and transmitting unit and performs a 3D printing operation based on the data;
and a data transmission part for providing a data transmission channel for the system.
Further, as preferred
The oral cavity data acquisition part comprises: a three-dimensional scanner capable of obtaining image data of the surfaces of gingiva and teeth corresponding to a plaster model molded by oral cavity impression of a patient using an impression material; and an oral cavity cone beam CT machine for directly scanning the oral cavity of the patient to obtain the corresponding dental hard tissue image data. The accurate scanning data of the oral cavity condition of the patient can be obtained through the oral cavity data acquisition part, namely, firstly, the impression material is used for carrying out oral cavity impression taking on the patient, plaster is injected to mould a plaster model after impression taking, the moulded plaster model is scanned by using a three-dimensional scanner, and the image of the tooth surface, namely the image data of the gingiva and the tooth surface, is obtained; meanwhile, the oral cavity cone beam CT machine is used for shooting and scanning a patient to obtain a three-dimensional image in the oral cavity, namely tooth hard tissue image data, and the image can visually see the trend of the mandibular nerve, the structures of the teeth and the alveolar bone and the like.
Further, as preferred
The oral cavity data processing unit includes:
an oral data extraction unit capable of extracting corresponding external tooth image data from the received gum and tooth surface image data and extracting corresponding external tooth image data and internal tooth image data from the received hard tooth tissue image data;
the oral data matching unit can carry out self-adaptive comparison on the external image data of the two teeth and judge whether the external image data exceeds a set comparison threshold value, and if so, the oral data matching unit controls the oral data acquisition part to carry out the data acquisition process again; otherwise, directly outputting the internal image data of the tooth and the external image data of the tooth obtained by self-adaptive comparison calculation;
an oral data restructuring unit for restructuring and analyzing three-dimensional implant structure data including internal tooth data and external tooth data, that is, surface texture structure data, based on the obtained internal tooth image data and external tooth image data;
and the oral cavity data storage unit is used for locally storing the three-dimensional implant structure data.
The oral cavity data processing part can be realized by using three-dimensional image processing software, namely, two tooth external images and tooth internal images are respectively provided through model taking scanning, whether errors or misoperation exist in the acquisition process is judged after the two tooth external image data are subjected to self-adaptive comparison, if not, the corresponding tooth external image and tooth internal image can be further determined to carry out image recombination and data processing analysis, so that three-dimensional implant structure data required by a data image, namely a 3D printing model, is obtained, the three-dimensional implant structure data comprises the tooth internal condition and the surface texture structure, a doctor is used for selecting and designing an implant, and a proper operation scheme is drawn up.
Further, as preferred
The 3D printing portion has:
an integrated frame; the integrated machine frame is made of an aluminum alloy material or an engineering plastic material;
the three-axis transmission component is arranged on the integrated machine frame and is an X-axis transmission component, a Y-axis transmission component and a Z-axis transmission component, wherein the X-axis transmission component comprises an X-axis transmission mechanism and a 3D printing head capable of moving along the X-axis direction, the Y-axis transmission component is arranged on the X-axis transmission component and drives the X-axis transmission mechanism to move along the Y-axis direction through the Y-axis transmission mechanism, and the Z-axis transmission component is arranged on the Y-axis transmission component and comprises a Z-axis transmission mechanism and a printing workbench capable of moving along the Z-axis direction;
and the printing control part comprises a main control chip which controls the corresponding driving motors to act through an X-axis driving chip, a Y-axis driving chip and a Z-axis driving chip respectively so as to realize the accurate printing process of the 3D printed product. Preferably, the driving chip is an A4988 driving chip. The main control chip is also provided with various data interfaces such as a USB interface, an SPI interface and the like. Therefore, the invention fully utilizes the 3D printing advantages to automatically, quickly, directly and accurately convert the design in the computer into the printing model, thereby effectively improving the printing precision and being more convenient to operate.
Further, as preferred
The data transmission part can be a wired or wireless transmission form data transmission channel provided by the system. It CAN also include SPI bus, CAN bus, etc. many kinds of data transmission buses; it can also include various types of data transmission forms such as GSM, wifi, USB, infrared, Bluetooth, etc.
In conclusion, according to two types of collected data of the oral cavity of a patient, the three-dimensional image processing design developed by self is utilized, and the 3D printing technology is used for manufacturing the implanting operation guide plate; and the image digital data reconstruction technology is adopted, and the accurate data of the tomography of the oral cavity of the patient is input into the oral cavity data processing part before the operation, so that the data comparison and the establishment of the three-dimensional model can be carried out, and meanwhile, an environment simulation program is designed on the three-dimensional basis, for example, the establishment of the three-dimensional implant model can be added to carry out simulation in different preset oral cavity environments, for example, the implant implantation position is selected, the proper implant type is selected, then the operation is carried out according to a navigation template, the artificial tooth implant and the prosthesis are implanted, and the humanized modification is carried out according to the requirements of the patient. The technology can overcome the problems that the overlapping of 2D scanning images easily causes misjudgment of doctors and the like, reduces the risks of doctors due to insufficient skills and experiences, reduces the workload of the doctors, improves the diagnosis and treatment safety, and realizes economical diagnosis and treatment under the sharing of digital resources.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. A dental 3D printing system, comprising:
an oral cavity data acquisition part which can respectively obtain gingiva and tooth surface image data corresponding to a plaster model molded by using an impression material to carry out oral cavity impression on a patient and tooth hard tissue image data corresponding to direct scan on the oral cavity of the patient;
the oral cavity data acquisition part comprises: a three-dimensional scanner capable of obtaining image data of the surfaces of gingiva and teeth corresponding to a plaster model molded by oral cavity impression of a patient using an impression material;
and an oral cone-beam CT machine that directly scans the patient's oral cavity to obtain corresponding dental hard tissue image data;
the oral cavity data processing part receives the image data of the surfaces of the gingiva and the teeth and the image data of the hard tissues of the teeth through the data receiving and transmitting part and carries out three-dimensional image recombination analysis so as to obtain three-dimensional implant structure image data;
The oral cavity data processing unit includes:
an oral data extraction unit capable of extracting corresponding external tooth image data from the received gum and tooth surface image data and extracting corresponding external tooth image data and internal tooth image data from the received hard tooth tissue image data;
the oral data matching unit can carry out self-adaptive comparison on the external image data of the two teeth and judge whether the external image data exceeds a set comparison threshold value, and if so, the oral data matching unit controls the oral data acquisition part to carry out the data acquisition process again; otherwise, directly outputting the internal image data of the tooth and the external image data of the tooth obtained by self-adaptive comparison calculation;
an oral data restructuring unit which reconstructs and analyzes a three-dimensional implant structure image including internal tooth data and external tooth data, that is, surface texture structure data, based on the obtained internal tooth image data and external tooth image data;
a 3D printing unit which receives the three-dimensional implant structure image data through a data receiving and transmitting unit and performs a 3D printing operation based on the data;
The 3D printing portion has:
an integrated frame;
the three-axis transmission component is arranged on the integrated machine frame and is an X-axis transmission component, a Y-axis transmission component and a Z-axis transmission component, wherein the X-axis transmission component comprises an X-axis transmission mechanism and a 3D printing head capable of moving along the X-axis direction, the Y-axis transmission component is arranged on the X-axis transmission component and drives the X-axis transmission mechanism to move along the Y-axis direction through the Y-axis transmission mechanism, and the Z-axis transmission component is arranged on the Y-axis transmission component and comprises a Z-axis transmission mechanism and a printing workbench capable of moving along the Z-axis direction;
and a print control part;
and a data transmission part for providing a data transmission channel for the system;
the data transmission part can be a wired and/or wireless transmission form data transmission channel provided by the system.
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| CN201611208548.0A CN106580495B (en) | 2016-12-23 | 2016-12-23 | Dental 3D printing system |
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| CN201611208548.0A CN106580495B (en) | 2016-12-23 | 2016-12-23 | Dental 3D printing system |
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| CN106580495B true CN106580495B (en) | 2022-07-19 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107116730A (en) * | 2017-06-30 | 2017-09-01 | 深圳市倍康美医疗电子商务有限公司 | A kind of forming method of gum glue |
| CN107900332B (en) * | 2017-11-15 | 2018-10-26 | 成都优材科技有限公司 | Dentistry plants the 3D printing method of holder |
| CN108132024A (en) * | 2017-12-21 | 2018-06-08 | 苏州临点三维科技有限公司 | The method of 3-D scanning |
| CN108904083A (en) * | 2018-05-24 | 2018-11-30 | 北京缔佳医疗器械有限公司 | A kind of manufacturing method and manufacturing device of dental impression tray |
| CN109276332B (en) * | 2018-09-12 | 2020-12-18 | 深圳市康泰健牙科器材有限公司 | Oral cavity model manufacturing method and system |
| CN111434318B (en) * | 2019-01-15 | 2022-09-13 | 上海韩华牙科材料有限公司 | False tooth manufacturing method and device based on 3D printing |
| CN111292239B (en) * | 2020-01-21 | 2021-03-12 | 天目爱视（北京）科技有限公司 | Three-dimensional model splicing equipment and method |
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