CN111572025A - Preparation method of 3D guide plate for MSE maxillary bone arch expansion - Google Patents
Preparation method of 3D guide plate for MSE maxillary bone arch expansion Download PDFInfo
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- CN111572025A CN111572025A CN202010359461.3A CN202010359461A CN111572025A CN 111572025 A CN111572025 A CN 111572025A CN 202010359461 A CN202010359461 A CN 202010359461A CN 111572025 A CN111572025 A CN 111572025A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
- A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
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- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Dentistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The invention discloses a preparation method of a 3D guide plate for MSE maxillary bone arch expansion, which comprises the steps of establishing a three-dimensional integrated digital model comprising a maxillary bone, a nasal floor and teeth by a three-dimensional digital model building technology, carrying out type selection and position design on an MSE arch expander, an anchorage nail and a lantern ring on the three-dimensional integrated digital model, assembling other MSE kits on an entity model of the three-dimensional integrated MSE digital model comprising the MSE arch expander, generating a three-dimensional digital model comprising all the MSE kits by 3D scanning, designing a guide plate on the three-dimensional digital model, and producing a digital guide plate entity by using a three-dimensional printing technology; the guide plate preparation method is applied to clinic, not only can the existing clinical technology be developed, but also the clinical quality and the treatment accuracy can be improved, and effective help is provided for the primary hospital to develop the technology; the problem of how to accurately guide MSE installation is effectively solved.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a preparation method of a 3D guide plate for MSE maxillary bone arch expansion.
Background
In the known technology, transverse maxillary hypoplasia (MTD) is a common malocclusion in clinic, and may occur in patients of all age groups, and MTD mainly represents palatine vault, retrozygosis or contra-edging of posterior teeth on one side or both sides, crowding of dentition, too wide buccal corridor gap, etc., which may affect chewing, pronunciation and periodontal health of patients, and cause respiratory system disorders, while serious patients may affect maxillofacial growth and development of patients, affect oromandibular system and facial aesthetics, and even cause psychological disorders of patients. The defect of transverse width of the maxilla in treatment can seriously affect the control of orthodontics in the vertical direction and the sagittal direction, and is the problem to be solved firstly, so whether the bony expansion of the maxilla can be effectively realized or not is the key point for successful treatment of the cases.
The current common bone arch expansion modes in clinic include a tooth supporting mode and a bone supporting mode. Patients with small age and peak growth and development are usually selected to be teeth-supporting, have small trauma and have high acceptability. While the use of a dental support method for patients with advanced growth and development and adults is less effective. Therefore, the arch expansion mode is clinically proved to be an effective treatment method for correcting transverse underdevelopment of the upper jaw, breaks through the age limit of the traditional tooth-supported upper jaw quick arch expansion, can still obtain better bony arch expansion curative effect for patients in late growth and development and young adults, has smaller side effects on teeth and periodontium such as tooth cheek inclination, alveolar bone height reduction and the like, and has better long-term stability of arch expansion curative effect.
At present, MSE (dental implant screw assisted maxillary rapid arch expansion) is clinically used for palatal arch expansion of patients with insufficient dental arch width in the later growth and development stage. However, the technical difficulty is that a doctor designs the position of the implant nail auxiliary maxillary rapid arch expansion device on a solid model only according to the personal clinical experience, and a technician processes according to the position. In actual clinical practice, doctors also need to implant 4 implant anchorage pins into the palate by the experience of the supervisor. If the 4 implants have deviation in positioning path, the implants become cohesive, which greatly affects the later bone expansion effect and even causes the bone expansion failure.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to overcome the problems, the preparation method of the 3D guide plate for MSE maxillary bone arch expansion is provided, the existing clinical technology is expanded, the clinical quality and the treatment accuracy can be improved, effective help is provided for a primary hospital to develop the technology, and the problem of how to accurately guide MSE installation is effectively solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a preparation method of a 3D guide plate for MSE maxillary bone arch expansion comprises the following steps:
1) obtaining a three-dimensional digital model of the maxilla and the nasal floor of a patient through CBCT scanning, and exporting a standard DICOM format file;
2) directly obtaining a three-dimensional digital dentition model of a patient through an Itero intraoral scanner, partially occluding an unstable case, obtaining a dentition entity model and an occlusion relation through a silicon rubber model taking method, installing the dentition entity model on a jaw frame, converting an entity gypsum model into a three-dimensional digital model through 3D scanning, and exporting the dentition three-dimensional digital model into a data file in a DCM or STL format;
3) importing the data file obtained in the steps 1) and 2) into an exocad2018 version (containing smile design module);
4) fitting the three-dimensional digital models of the maxilla and the nasal floor and the dentition three-dimensional digital model by exocad software to obtain a three-dimensional integrated digital model M1 containing the maxilla, the nasal floor and the teeth;
5) referring to CBCT and dentition information in exocad, selecting a proper MSE arch expander model and anchorage pin model, importing the MSE arch expander three-dimensional digital model M2 and anchorage pin three-dimensional digital model M3 of the selected models, and placing the MSE arch expander three-dimensional digital model M2 and the anchorage pin three-dimensional digital model M3 at proper positions on a three-dimensional integrated digital model M1;
6) printing a three-dimensional entity model formed by combining an MSE arch expander three-dimensional model M2 and a three-dimensional integrated digital model M1;
7) combining an MSE arch expander three-dimensional digital model M2 and a three-dimensional integrated digital model M1 in exocad, and designing a lantern ring for the MSE arch expander;
8) manufacturing a metal lantern ring through 3D printing, or firstly printing a wax pattern of the metal lantern ring through 3D printing, and then casting the metal lantern ring through a lost wax method;
9) assembling a required MSE suite except the MSE arch expander on the three-dimensional solid model obtained in the step 6), and obtaining a three-dimensional digital model through 3D scanning after the installation is finished;
10) carrying out three-dimensional digital positioning design on the three-dimensional digital model obtained in the step 9) through exocad software, and designing and generating a guide structure on the guide plate;
11) and transferring to a module design module of the exocad software to generate an effect digital model of the guide plate, transferring to a 3D printing module of the exocad software to generate a guide plate entity digital model, and manufacturing the guide plate entity through 3D printing equipment.
Further, the CBCT scanning parameters in step 1) are: the layer thickness is 200-.
Further, the CBCT image feature points in step 1) are selected as follows: crown morphology.
Further, when the MSE arch expander is selected by exocad software in the step 5), the standard model parameters of the MSE arch expander are as follows: and (4) a finished product bow-expanding device generated by reverse engineering.
Further, when the anchorage nail is selected by the exocad software in the step 5), the standard model parameters of the anchorage nail are as follows: finished product anchorage nail device that reverse engineering produced.
The invention has the beneficial effects that: a MSE maxillofacial bone expands 3D guide plate preparation method for bow, build the three-dimensional integrated digital model including maxilla, nasal floor, tooth through the technology of three-dimensional digital model building, carry on MSE expand bow machine and anchorage nail (also known as planting the nail) model selection and position design on the three-dimensional integrated digital model, combine MSE expand bow machine three-dimensional digital model and three-dimensional integrated digital model, design the lantern ring that MSE expands bow machine to use, then print the entity model comprising MSE expand bow machine three-dimensional integrated digital model, carry on the assembly of other MSE external members on the entity model, produce new three-dimensional digital model through 3D scanning after finishing assembling, carry on three-dimensional digital positioning design through exocad software on new three-dimensional digital model, design and produce the guide structure on the guide plate, utilize the three-dimensional printing technology to produce the digital guide plate; the guide plate preparation method is applied to clinic, not only can the existing clinical technology be developed, but also the clinical quality and the treatment accuracy can be improved, and effective help is provided for the primary hospital to develop the technology; the problem of how to accurately guide MSE installation is effectively solved.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
A preparation method of a 3D guide plate for MSE maxillary bone arch expansion comprises the following steps:
1) and obtaining the three-dimensional digital model of the maxilla and the nasal floor of the patient through CBCT scanning, wherein the CBCT scanning is the layer thickness of 200-.
2) Directly obtaining a three-dimensional digital dentition model of a patient through an Itero intraoral scanner, partially occluding an unstable case, obtaining a dentition entity model and an occlusion relation through a silicon rubber model taking method, installing the dentition entity model on a jaw frame, converting an entity gypsum model into a three-dimensional digital model through 3D scanning, and exporting the dentition three-dimensional digital model into a data file in a DCM or STL format for storage;
3) importing the data files obtained in the steps 1) and 2) into an exocad2018 version (containing smile design module), wherein other exocad versions containing smile design module modules are also available;
4) fitting the three-dimensional digital models of the maxilla and the nasal floor and the dentition three-dimensional digital model by exocad software to obtain a three-dimensional integrated digital model M1 containing the maxilla, the nasal floor and the teeth;
5) referring to CBCT and dentition information in exocad, selecting a proper MSE arch expander model and anchorage nail model, and when the MSE arch expander is selected from the exocad, the standard model parameters of the MSE arch expander are as follows: when the finished product that reverse engineering generated expands bow device selects the anchorage nail in exocad, the standard model parameter of anchorage nail is: a finished product anchorage nail device generated by reverse engineering;
importing an MSE arch expander three-dimensional digital model M2 and an anchorage nail three-dimensional digital model M3 of a selected model, and placing the MSE arch expander three-dimensional digital model M2 and the anchorage nail three-dimensional digital model M3 at proper positions on a three-dimensional integrated digital model M1;
6) printing a three-dimensional entity model formed by combining an MSE arch expander three-dimensional model M2 and a three-dimensional integrated digital model M1;
7) combining an MSE arch expander three-dimensional digital model M2 and a three-dimensional integrated digital model M1 in exocad, and designing a lantern ring for the MSE arch expander;
8) manufacturing a metal lantern ring through 3D printing, or firstly printing a wax pattern of the metal lantern ring through 3D printing, and then casting the metal lantern ring through a lost wax method;
9) assembling MSE kits required except the MSE arch expander on the three-dimensional solid model obtained in the step 6), wherein the MSE kits comprise lantern rings, anchorage nails and connecting brackets, and can be connected and pulled for use before possible, and obtaining a three-dimensional digital model thereof through 3D scanning after the installation is finished;
10) carrying out three-dimensional digital positioning design on the three-dimensional digital model obtained in the step 9) through exocad software, and designing and generating a guide structure on the guide plate;
specifically, a base plate is generated according to the tooth row and the upper jaw bone structure information on the three-dimensional digital model obtained in the step 9), the surface structure of the base plate is respectively matched with the shapes of the upper jaw and the teeth, so that the mutual positions of the base plate, the upper jaw and the teeth are ensured to be determined, and then according to the three-dimensional installation positions of all MSE components, corresponding installation guide structures, such as a sleeve for guiding the installation position and angle of the anchorage nail and a positioning groove for positioning the MSE arch expander, are arranged on the guide plate;
11) and transferring to a module design module of the exocad software to generate an effect digital model of the guide plate, transferring to a 3D printing module of the exocad software to generate a guide plate entity digital model, and manufacturing the guide plate entity through 3D printing equipment.
When the guide plate is used, the MSE device is firstly positioned and arranged in the patient mouth one by one through the guide structure on the guide plate according to the arrangement sequence.
The invention relates to a preparation method of a 3D guide plate for MSE maxillary bone arch expansion, which comprises the steps of establishing a three-dimensional integrated digital model comprising a maxillary bone, a nasal bottom and teeth by a three-dimensional digital model building technology, carrying out model selection and position design on an MSE arch expander and anchorage nails (also called planting nails) on the three-dimensional integrated digital model, designing a lantern ring used by the MSE arch expander by combining the three-dimensional digital model of the MSE arch expander and the three-dimensional integrated digital model, then printing an entity model of the three-dimensional integrated digital model comprising the MSE arch expander, carrying out assembly of other MSE kits on the entity model, generating a new three-dimensional digital model by 3D scanning after completing the assembly, carrying out three-dimensional digital positioning design on the new three-dimensional digital model by exocad software, designing and generating a guide structure on the guide plate, and producing a digital guide plate entity by using a three-dimensional printing technology; the guide plate preparation method is applied to clinic, not only can the existing clinical technology be developed, but also the clinical quality and the treatment accuracy can be improved, and effective help is provided for the primary hospital to develop the technology; the problem of how to accurately guide MSE installation is effectively solved.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. A preparation method of a 3D guide plate for MSE maxillary bone arch expansion is characterized by comprising the following steps:
1) obtaining a three-dimensional digital model of the maxilla and the nasal floor of a patient through CBCT scanning, and exporting a standard DICOM format file;
2) directly obtaining a three-dimensional digital dentition model of a patient through an Itero intraoral scanner, partially occluding an unstable case, obtaining a dentition entity model and an occlusion relation through a silicon rubber model taking method, installing the dentition entity model on a jaw frame, converting an entity gypsum model into a three-dimensional digital model through 3D scanning, and exporting the dentition three-dimensional digital model into a data file in a DCM or STL format;
3) importing the data files obtained in the steps 1) and 2) into an exocad2018 version (containing smile design module);
4) fitting the three-dimensional digital models of the maxilla and the nasal floor and the dentition three-dimensional digital model by exocad software to obtain a three-dimensional integrated digital model M1 containing the maxilla, the nasal floor and the teeth;
5) referring to CBCT and dentition information in exocad, selecting a proper MSE arch expander model and anchorage pin model, importing the MSE arch expander three-dimensional digital model M2 and anchorage pin three-dimensional digital model M3 of the selected models, and placing the MSE arch expander three-dimensional digital model M2 and the anchorage pin three-dimensional digital model M3 at proper positions on a three-dimensional integrated digital model M1;
6) printing a three-dimensional entity model formed by combining an MSE arch expander three-dimensional model M2 and a three-dimensional integrated digital model M1;
7) combining an MSE arch expander three-dimensional digital model M2 and a three-dimensional integrated digital model M1 in exocad, and designing a lantern ring for the MSE arch expander;
8) manufacturing a metal lantern ring through 3D printing, or firstly printing a wax pattern of the metal lantern ring through 3D printing, and then casting the metal lantern ring through a lost wax method;
9) assembling a required MSE suite except the MSE arch expander on the three-dimensional solid model obtained in the step 6), and obtaining a three-dimensional digital model through 3D scanning after the installation is finished;
10) carrying out three-dimensional digital positioning design on the three-dimensional digital model obtained in the step 9) through exocad software, and designing and generating a guide structure on the guide plate;
11) and transferring to a modulesign module of the exocad software to generate an effect digital model of the guide plate, transferring to a 3D printing module of the exocad software to generate a guide plate entity digital model, and manufacturing the guide plate entity through 3D printing equipment.
2. The method for preparing an MSE 3D guide plate for maxillary bone arch expansion according to claim 1, wherein the method comprises the following steps: the CBCT scanning parameters in the step 1) are as follows: the layer thickness is 200-.
3. The method for preparing an MSE 3D guide plate for maxillary bone arch expansion according to claim 1, wherein the method comprises the following steps: the CBCT image characteristic points in the step 1) are selected as follows: crown morphology.
4. The method for preparing an MSE 3D guide plate for maxillary bone arch expansion according to claim 1, wherein the method comprises the following steps: when the MSE arch expander is selected through exocad software in the step 5), the standard model parameters of the MSE arch expander are as follows: and (4) a finished product bow-expanding device generated by reverse engineering.
5. The method for preparing an MSE 3D guide plate for maxillary bone arch expansion according to claim 1, wherein the method comprises the following steps: when the anchorage nail is selected by exocad software in the step 5), the standard model parameters of the anchorage nail are as follows: finished product anchorage nail device that reverse engineering produced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010359461.3A CN111572025A (en) | 2020-04-30 | 2020-04-30 | Preparation method of 3D guide plate for MSE maxillary bone arch expansion |
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| CN202010359461.3A CN111572025A (en) | 2020-04-30 | 2020-04-30 | Preparation method of 3D guide plate for MSE maxillary bone arch expansion |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822723A (en) * | 2017-12-13 | 2018-03-23 | 福建省齿峰口腔颌面矫治研究所 | A kind of oral appliance preparation method |
| CN109044542A (en) * | 2018-08-06 | 2018-12-21 | 上海精功齿科技术有限公司 | One kind being used for the insufficient sagittal of maxillary development to expansion begg appliance device and manufacturing method |
| CN111166513A (en) * | 2020-03-06 | 2020-05-19 | 北京大学口腔医学院 | Front draft intraoral device and method of making same |
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2020
- 2020-04-30 CN CN202010359461.3A patent/CN111572025A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107822723A (en) * | 2017-12-13 | 2018-03-23 | 福建省齿峰口腔颌面矫治研究所 | A kind of oral appliance preparation method |
| CN109044542A (en) * | 2018-08-06 | 2018-12-21 | 上海精功齿科技术有限公司 | One kind being used for the insufficient sagittal of maxillary development to expansion begg appliance device and manufacturing method |
| CN111166513A (en) * | 2020-03-06 | 2020-05-19 | 北京大学口腔医学院 | Front draft intraoral device and method of making same |
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Application publication date: 20200825 |