CN109589175A - Dental implantion analogy method based on virtual reality and 3D printing technique - Google Patents
Dental implantion analogy method based on virtual reality and 3D printing technique Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000010146 3D printing Methods 0.000 title claims abstract description 34
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 210000000214 mouth Anatomy 0.000 claims description 42
- 210000004204 blood vessel Anatomy 0.000 claims description 18
- 210000005036 nerve Anatomy 0.000 claims description 17
- 210000004400 mucous membrane Anatomy 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 210000000988 bone and bone Anatomy 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 230000003239 periodontal effect Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 4
- 230000008034 disappearance Effects 0.000 claims description 4
- 238000001356 surgical procedure Methods 0.000 abstract description 26
- 238000012549 training Methods 0.000 abstract description 23
- 239000004053 dental implant Substances 0.000 abstract description 13
- 238000004088 simulation Methods 0.000 abstract description 11
- 230000007812 deficiency Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 206010058046 Post procedural complication Diseases 0.000 description 4
- 208000035965 Postoperative Complications Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000003027 ear inner Anatomy 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/101—Computer-aided simulation of surgical operations
- A61B2034/102—Modelling of surgical devices, implants or prosthesis
- A61B2034/104—Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/10—Computer-aided planning, simulation or modelling of surgical operations
- A61B2034/101—Computer-aided simulation of surgical operations
- A61B2034/105—Modelling of the patient, e.g. for ligaments or bones
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Robotics (AREA)
- Epidemiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Instructional Devices (AREA)
Abstract
本发明涉及一种基于虚拟现实与3D打印技术的牙种植模拟方法。该方法，首先，通过虚拟现实技术为受训者模拟出近似真实的手术操作环境，运用该技术培训实习医生可以大大降低手术培训的时间及费用，提高初学者手术操作的熟练程度及精细水准，进而减少手术并发症，提高手术成功率，增加手术的安全性，并且不受标本、场地等的限制；在此基础上，再结合3D打印技术制作出的实体模型，供学生进一步的训练或考核，切合实际操作。本发明弥补了虚拟技术的不足；另外还可进行术前的手术模拟，并选取最佳方案以及对方案进行优化。The invention relates to a dental implant simulation method based on virtual reality and 3D printing technology. In this method, firstly, virtual reality technology is used to simulate a near-real surgical operation environment for trainees. Using this technology to train interns can greatly reduce the time and cost of surgical training, improve the proficiency and fineness of beginners' surgical operations, and then Reduce surgical complications, improve the success rate of surgery, increase the safety of surgery, and are not limited by specimens, venues, etc. Practical. The invention makes up for the deficiency of virtual technology; in addition, it can perform preoperative operation simulation, select the best plan and optimize the plan.
Description
Technical field
The Dental implantion analogy method based on virtual reality and 3D printing technique that the present invention relates to a kind of.
Background technique
Dental implantion refer to it is a kind of based on the substructure being implanted into bone tissue support, maintenance top dental case
Agomphosis repair mode.It includes the support planting body of lower part and the dental case two parts on top.It uses artificial material (such as
Metal, ceramics etc.) it is made planting body (general similar root form), (lower jaw is usually gone up) simultaneously in underwent operative method implanting tissue
It obtains the firm maintenance of bone tissue to support, connects the dental case for supporting top with mode by special device.
Since the implementation region of Dental implant surgery is complicated oral cavity, resulting high-fineness require with it is high at
This limitation, so that the operative training of Dental implantion doctor becomes a problem.It is given lessons by teacher's books, Mould operation and scene are seen
The modes such as rub carry out the traditional teaching method of medical teaching, be inevitably present theoretical knowledge be abstracted hard to understand, practice with it is clinical
The problems such as disconnection.
Summary of the invention
It is an object of the invention to various deficiencies for traditional Dental implant surgery training, using virtual reality technology and 3D
The method that printing technique combines provides a kind of Dental implantion analogy method based on virtual reality and 3D printing technique, is trained
Person simulates approximate true surgical procedure environment, with technical training intern can substantially reduce surgery training when
Between and expense, improve beginner's surgical procedure qualification and fine level, and then reduce postoperative complication, improve operation at
Power increases the safety of operation, and is not limited by sample, place etc.；On this basis, in conjunction with 3D printing technique system
The physical model made, for student's further training or examination, gear to actual circumstances operation, compensates for the deficiency of virtual technology；Separately
Preoperative surgical simulation can be also carried out outside, and chooses preferred plan and scheme is optimized.
To achieve the above object, the technical scheme is that a kind of tooth kind based on virtual reality and 3D printing technique
Implant analog method, includes the following steps:
Step S1, virtual reality technology application obscure portions:
S11, using oral cavity CT, oral cavity model is rebuild using Mimics software, which includes tooth model and bone
Model；One drill model of 3DS Max software development is used again；Then, oral cavity model, drill model are imported into Unity3D software,
Physical characteristic and correlation are assigned, when so that drill model touching tooth, taper hole occurs；Drill model uses VR
Handle operates, and in operating process, and drill model has vibrating effect；
S12, using Unity3D software programming so that pin VR handle key then drill model start to work, touch tooth
When, the partial disappearance that tooth is overlapped with drill model forms hole, and then drill model stops working release key, and hole is not
Expand again or deepens；When pinning VR handle key, drill model equally has vibrating effect；
S13, the distribution for carrying out periodontal nerve, blood vessel and mucous membrane: oral cavity CT is utilized, mouth is improved using Mimics software
Cavity mold type, carries out the distribution of nerve, blood vessel and mucous membrane, and nerve, blood vessel and mucous membrane are distinguish in different colors；
S14, drill model and plantation dolly set type using the various models of 3DS Max software development；The drill model that will be made
Unity3D software is imported with plantation dolly set type, is programmed in Unity3D software, the drill model of various models and plantation are followed closely
Model is shown in the right side of oral cavity model, and drill model or plantation dolly set type that VR handle chooses disposable type can be used
It is operated；
S15, perfect oral cavity model is imported into Unity3D software, is programmed in Unity3D software, so that drill model or kind
When plant dolly set type touches nerve or blood vessel, operator receives audio feedback, realizes reporting an error for surgical error；
Step S2,3D printing technique application obscure portions:
S21, data acquisition and acquisition: the perfect oral cavity model data that obtaining step S1 is established；
Three-dimensional reconstruction after S22, data import: perfect oral cavity model data are imported into 3D printing equipment and carry out three-dimensional reconstruction；
S23,3D print threedimensional model: the threedimensional model of perfect oral cavity model is printed by 3D printing equipment.
Compared to the prior art, the invention has the following advantages: the present invention is directed to traditional Dental implant surgery training
Various deficiencies, the method combined using virtual reality technology with 3D printing technique are provided one kind and are beaten based on virtual reality and 3D
The Dental implantion analogy method of print technology simulates approximate true surgical procedure environment for trainee, with technical training reality
The time and expense of surgery training, the qualification of raising beginner's surgical procedure and fine water can be substantially reduced by practising doctor
Standard, and then postoperative complication is reduced, success rate of operation is improved, increases the safety of operation, and not by the limit in sample, place etc.
System；On this basis, the physical model produced in conjunction with 3D printing technique suits for student's further training or examination
Practical operation compensates for the deficiency of virtual technology；In addition preoperative surgical simulation can be also carried out, and chooses preferred plan and right
Scheme optimizes.
Specific embodiment
Below with reference to technical solution of the present invention is specifically described.
The Dental implantion analogy method based on virtual reality and 3D printing technique that the present invention provides a kind of, including walk as follows
It is rapid:
Step S1, virtual reality technology application obscure portions:
S11, using oral cavity CT, oral cavity model is rebuild using Mimics software, which includes tooth model and bone
Model；One drill model of 3DS Max software development is used again；Then, oral cavity model, drill model are imported into Unity3D software,
Physical characteristic and correlation are assigned, when so that drill model touching tooth, taper hole occurs；Drill model uses VR
Handle operates, and in operating process, and drill model has vibrating effect；
S12, using Unity3D software programming so that pin VR handle key then drill model start to work, touch tooth
When, the partial disappearance that tooth is overlapped with drill model forms hole, and then drill model stops working release key, and hole is not
Expand again or deepens；When pinning VR handle key, drill model equally has vibrating effect；
S13, the distribution for carrying out periodontal nerve, blood vessel and mucous membrane: oral cavity CT is utilized, mouth is improved using Mimics software
Cavity mold type, carries out the distribution of nerve, blood vessel and mucous membrane, and nerve, blood vessel and mucous membrane are distinguish in different colors；
S14, drill model and plantation dolly set type using the various models of 3DS Max software development；The drill model that will be made
Unity3D software is imported with plantation dolly set type, is programmed in Unity3D software, the drill model of various models and plantation are followed closely
Model is shown in the right side of oral cavity model, and drill model or plantation dolly set type that VR handle chooses disposable type can be used
It is operated；
S15, perfect oral cavity model is imported into Unity3D software, is programmed in Unity3D software, so that drill model or kind
When plant dolly set type touches nerve or blood vessel, operator receives audio feedback, realizes reporting an error for surgical error；
Step S2,3D printing technique application obscure portions:
S21, data acquisition and acquisition: the perfect oral cavity model data that obtaining step S1 is established；
Three-dimensional reconstruction after S22, data import: perfect oral cavity model data are imported into 3D printing equipment and carry out three-dimensional reconstruction；
S23,3D print threedimensional model: the threedimensional model of perfect oral cavity model is printed by 3D printing equipment.
The following are specific implementation processes of the invention.
The present invention is directed to various deficiencies of traditional Dental implant surgery training, using virtual reality technology and 3D printing technique phase
In conjunction with method made up.First with virtual reality technology, approximate true surgical procedure environment is simulated for trainee,
The time and expense of surgery training can be substantially reduced with technical training intern, improve the ripe of beginner's surgical procedure
Practice degree and fine level, and then reduce postoperative complication, improves success rate of operation, increase the safety of operation.This is than using
The mode of textbook is much effective, and is not limited by sample, place etc..On this basis, in conjunction with 3D printing technique system
The physical model made, for student's further training or examination, gear to actual circumstances operation, compensates for the deficiency of virtual technology.Separately
Outside, this system can also carry out preoperative surgical simulation, and choose preferred plan and optimize to scheme.
Specifically, virtual reality can be divided into the present invention is based on the Dental implantion analogy method of virtual reality and 3D printing technique
Technical application part and 3D printing technique application obscure portions.
(1) virtual reality technology application: the virtual reality applications part of this project can generally be divided into the realization of two steps.It is first
First first with 3DS Max(3D Studio Max) etc. modeling softwares modeled, then by model import Unity3D software, assign
Virtual reality hardware interactive device experiencing virtual surgical procedure can be used in physical characteristic and correlation.It is answered the part
The software used mainly has: 3DS Max, Mimics(Materialise's interactive medical image
Control system) and Unity3D；The virtual reality hardware interactive device being applied to mainly has: HTV Vive aobvious and VR
Handle.
Whole process can be specifically divided into following five steps.One: the oral cavity CT provided using chain hospital uses Mimics
Software rebuilds oral cavity model, which only includes tooth and bone.One drill model of 3DS Max software development is used again.It will
Two kinds of models import Unity3D software, physical characteristic and correlation are assigned, when so that drill bit touching tooth, it may appear that
One taper hole with certain depth and size.But the formation of this hole can not be such that its midway stops, and also be unable to control
Hole size.Drill bit is manipulated with VR handle, and there is vibrating effect in when bit operation.Two: Unity3D software programming program is used,
Further improve this interaction.Improve result show themselves in that pin handle key then drill bit start to work, when touching tooth, tooth
The partial disappearance that tooth is overlapped with drill bit forms hole.Unclamping key, then drill bit stops working, and hole no longer expands or deepens.It presses
Firmly when VR handle key, equally there is vibrating effect.Three: carrying out the distribution of periodontal nerve, blood vessel and mucous membrane.Utilize cooperation
The oral cavity CT that hospital provides improves oral cavity model using Mimics software, carries out the distribution of nerve, blood vessel and mucous membrane.Nerve,
Blood vessel is distinguish in different colors with mucous membrane.Four: being followed closely using the drill bit and plantation of the various models of 3DS Max software development.It will
The drill bit and plantation dolly set type made import Unity3D software, program in Unity3D software, make the drill bit of various models
It is shown in the right side of oral cavity model with plantation nail, and the drill bit of VR handle selection disposable type can be used or plant nail and carry out
Operation.Five: perfect oral cavity model being imported into Unity3D software, is programmed in Unity3D software, so that drill bit or plantation nail
When touching nerve or blood vessel, operator receives audio feedback, realizes reporting an error for surgical error.
Virtual operation situation constructed by this process, with information supplements such as text, pictures, in conjunction with human-computer interaction device,
The surgical scene of high-fineness presentation Dental implantion.The simulation of the sense organs such as vision, the sense of hearing, tactile allows operator to be immersed in system
In the virtual scene of building, the virtual information in scene is operated, to immersively carry out Dental implant surgery operation.
(2) 3D printing technique application: 3D printing technique is to rely on computer, 3 D digital imaging and multi-level continuous
The technologies such as printing and a kind of rapid shaping technique for developing.It mainly includes three-dimensional after data acquisition is imported with acquisition, data
It rebuilds and 3D prints 3 steps such as threedimensional model.It is " increasing material manufacturing " that 3D printing, which is the former with conventionally manufactured maximum difference,
And the latter is " subtracting material manufacture "." increasing material manufacturing " simplifies fabrication schedule, improves production efficiency.Therefore, 3D printing has
Speed is fast, precision is high, plastic labyrinth, personalization and batch production the advantages that.
Surgical scene constructed by virtual reality technology is after all although true to nature and have many advantages, such as repeatable practice
Virtual scene, and the operation of practical Dental implant surgery have certain difference, it is therefore desirable to have physical model further to be trained
Or examination.And at this stage oral medicine teaching, in terms of, mostly use Isolated Tooth to carry out operation practice and improve
Oral medicine operative skill.But it can not due to the limitation of Isolated Tooth source, not reproducible, cross-infection, ethics problem etc.
For operate in large scale training.Resin tooth, unit of plastic differ larger with actual teeth anatomic form, and simulation quality is poor, therefore imitate
Fruit is also undesirable.
And 3D printing technique is used to make oral cavity model, then it can well solve these problems.First, it is beaten using 3D
Print technology has the characteristics that personalization, and the oral cavity model produced can accurately simulate various cases, is conducive to improve student's
Dental implantion technical level deepens the understanding to Dental implant surgery, has to the various situations occurred in correct reply operation in the future
Greater significance.Second, the characteristics of labyrinth plastic using 3D printing technique, make the labyrinths such as periodontal blood vessel
It can accurately be embodied in oral cavity model, and tooth is connected with surrounding tissue naturally, form is true to nature, reduce operator in the future
Dental implant surgery in accidentally injure blood vessel or nerve risk, significantly increase surgery training effect.Third utilizes 3D printing technique
Feature with high accuracy, the oral cavity model produced is more accurate, and error is small.Operator is advantageously reduced in practical Dental implant surgery
Middle operation is not accurate, planting body angle is bad or the inexact fault of installation.4th, it can be mass using 3D printing technique
The characteristics of, the utilization of entity dental cast operate in large scale training may be implemented.
Equipment and material: 3D printer (SPS 600B), light-hardening resin
The present invention is directed to this series of problems of Dental implant surgery training, by the way of actual situation combination, utilizes virtual reality skill
Art full-scope simulation surgical scene makes entity oral cavity model using 3D printing technique, and one, surgery training can be substantially reduced
Time and expense, and do not limited by sample, place, the qualification and fine level of beginner's surgical procedure are improved, is shown
Write the result of training of enhancing Dental implant surgery.Two, the accurate surgical simulation of the case is carried out in progress operation consent, to choose most
Good scheme and the optimization for carrying out scheme, and then postoperative complication is reduced, success rate of operation is improved, the safety of operation is increased.
Purposes: for Dental implant surgery training, examination and preoperative surgical simulation, and carry out scheme optimization and
The selection of preferred plan.
By the use process of the product of the method for the present invention or in the way of.
It when carrying out operative training or simulation in the scene of virtual reality, needs to dress VR and wears display equipment, hold
VR handle carries out virtual operation operation.The dental cast of 3D printing can then carry out operation preview or reality directly as physical model
Practise the training and examination of doctor.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (1)
1. a kind of Dental implantion analogy method based on virtual reality and 3D printing technique, which comprises the steps of:
Step S1, virtual reality technology application obscure portions:
S11, using oral cavity CT, oral cavity model is rebuild using Mimics software, which includes tooth model and bone
Model；One drill model of 3DS Max software development is used again；Then, oral cavity model, drill model are imported into Unity3D software,
Physical characteristic and correlation are assigned, when so that drill model touching tooth, taper hole occurs；Drill model uses VR
Handle operates, and in operating process, and drill model has vibrating effect；
S12, using Unity3D software programming so that pin VR handle key then drill model start to work, touch tooth
When, the partial disappearance that tooth is overlapped with drill model forms hole, and then drill model stops working release key, and hole is not
Expand again or deepens；When pinning VR handle key, drill model equally has vibrating effect；
S13, the distribution for carrying out periodontal nerve, blood vessel and mucous membrane: oral cavity CT is utilized, mouth is improved using Mimics software
Cavity mold type, carries out the distribution of nerve, blood vessel and mucous membrane, and nerve, blood vessel and mucous membrane are distinguish in different colors；
S14, drill model and plantation dolly set type using the various models of 3DS Max software development；The drill model that will be made
Unity3D software is imported with plantation dolly set type, is programmed in Unity3D software, the drill model of various models and plantation are followed closely
Model is shown in the right side of oral cavity model, and drill model or plantation dolly set type that VR handle chooses disposable type can be used
It is operated；
S15, perfect oral cavity model is imported into Unity3D software, is programmed in Unity3D software, so that drill model or kind
When plant dolly set type touches nerve or blood vessel, operator receives audio feedback, realizes reporting an error for surgical error；
Step S2,3D printing technique application obscure portions:
S21, data acquisition and acquisition: the perfect oral cavity model data that obtaining step S1 is established；
Three-dimensional reconstruction after S22, data import: perfect oral cavity model data are imported into 3D printing equipment and carry out three-dimensional reconstruction；
S23,3D print threedimensional model: the threedimensional model of perfect oral cavity model is printed by 3D printing equipment.
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