CN112690913B - Tooth orthodontic plan generation method and system - Google Patents
Tooth orthodontic plan generation method and system Download PDFInfo
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Abstract
The invention provides a tooth orthodontic planning generation method, which comprises the steps of obtaining a skull image of a user; acquiring a first characteristic parameter of a user according to a skull image; judging whether orthodontic treatment is needed or not for the malformation of the teeth of the user according to the first characteristic parameter; if yes, acquiring the orthodontic type according to the first characteristic parameter; acquiring a three-dimensional oral cavity model of a user; generating an orthodontic plan according to the three-dimensional oral cavity model and the orthodontic type; the orthodontic planning comprises generating a predicted three-dimensional oral model; on the basis, the application also provides a tooth orthodontic plan generating system; the orthodontic planning is generated according to the skull image and the three-dimensional oral cavity model of the user, the defects caused by only two-dimensional parameter analysis can be overcome, the effects of predicting orthodontic effect and manufacturing an orthodontic device are achieved, and the three-dimensional plaster model, the plaster model and the cut toothpaste teeth are not required to be manufactured, so that the workload of a doctor or related technicians can be reduced.
Description
Technical Field
The invention relates to the field of orthodontic, in particular to a tooth orthodontic planning generation method and a tooth orthodontic planning generation system.
Background
Oral disease is a common multiple disease. According to the statistics of the world health organization, malocclusion deformity has become one of three oral diseases. Dentognathic deformities have a great influence on oral health, oral function, development of maxillofacial bones, and appearance. Orthodontics has been recognized as an essential and important part of oral health care treatment.
Orthodontic is to fix and correct appliances composed of an arch wire, a bracket and the like or invisible removable appliances such as a tooth socket and the like aiming at teeth arranged in malformation or malocclusion, applies three-dimensional correction force and moment to the teeth, adjusts the balance and coordination among facial bones, the teeth and maxillofacial muscles, improves the facial form, aligns dentition and improves chewing efficiency after correction for a period of time. Whether fixed correction or invisible correction, the correction scheme needs to be fully planned and formulated by the experience of doctors: making a dental jaw plaster model of a patient; cutting the tooth concerned on the plaster model; manually simulating the above-mentioned movements and final positions of the teeth involved in the orthodontic procedure; finally, the adhesive wax is fixed, thereby giving the user the desired effect of orthodontic treatment. However, the above operation has the following drawbacks: errors exist in the cutting operation; the cut tooth plaster model only relates to a dental crown part and cannot simulate the position and angle change of a dental root in the orthodontic treatment process; the manual operation workload of doctors is large, and the efficiency is low; and related to personal experience values of doctors, orthodontic processes output by different doctors may be different, and quantification and unification cannot be performed.
Therefore, the method and the system for generating the dental orthodontic plan are important for predicting the orthodontic process, expecting the orthodontic effect, reducing the working intensity of doctors and eliminating the worry of users.
Disclosure of Invention
In view of the above problems of the prior art, an object of the present invention is to provide a method for generating an orthodontic plan, comprising:
acquiring a skull image of a user;
acquiring a first characteristic parameter of a user according to the skull image;
judging whether orthodontic treatment is needed or not for the malformation of the teeth of the user according to the first characteristic parameters;
if yes, acquiring the orthodontic type according to the first characteristic parameter;
acquiring a three-dimensional oral cavity model of a user;
generating an orthodontic plan from the three-dimensional oral model and the orthodontic type; the orthodontic planning includes generating a predicted three-dimensional oral model.
Specifically, the orthodontic planning further comprises obtaining an orthodontic result, wherein the orthodontic result comprises an orthodontic diagnosis result and an orthodontic effect prediction result, and the obtaining of the orthodontic result comprises the following steps:
acquiring a second characteristic parameter of the user according to the predicted three-dimensional oral cavity model;
and comparing and analyzing the second characteristic parameter with the first characteristic parameter to obtain an orthodontic diagnosis result and an orthodontic effect prediction result.
Specifically, after acquiring the orthodontic diagnosis result and the orthodontic effect prediction result, the method further comprises the following steps:
acquiring the image of the skull of the user again;
analyzing the orthodontic planning contrast according to the re-acquired skull image of the user; or
Acquiring the image of the skull of the user again and acquiring the three-dimensional oral cavity model of the user again;
and correcting the orthodontic plan according to the re-acquired skull image of the user and the re-acquired three-dimensional oral cavity model of the user.
Specifically, the acquiring a three-dimensional oral cavity model of a user comprises:
scanning the oral cavity of a user to obtain a basic three-dimensional oral cavity model;
acquiring a third characteristic parameter according to the basic three-dimensional oral cavity model;
and carrying out registration processing on the basic three-dimensional oral cavity model according to a third characteristic parameter and the first characteristic parameter to obtain the three-dimensional oral cavity model.
Further, the first characteristic parameters comprise at least dental parameters and cranial parameters; the tooth parameters comprise parameters of a tooth cusp, a tooth root, a tooth socket and a tooth groove of each tooth; a tooth spacing parameter between adjacent teeth; and the parameters of occlusion between the upper and lower teeth; the skull parameters comprise ear points, nasal root points, sphenoid saddle points and distances among the tooth parameters, the ear points, the nasal root points and the sphenoid saddle points.
In particular, the orthodontic types include:
orthodontic types corresponding to individual tooth misalignment;
orthodontic types corresponding to abnormal arch formation, abnormal dentition alignment; the orthodontic type corresponding to abnormal formation and abnormal arrangement of dental arches comprises one or more of dental arch alignment, dental arch retraction and dental arch external expansion;
and orthodontic types corresponding to abnormalities in the relationship of the dental arch, jaw bone and craniofacial bones.
Specifically, the orthodontic planning further comprises generating an orthodontic protocol comprising:
orthodontic regimens corresponding to individual tooth malposition; the orthodontic protocol corresponding to individual tooth misalignment comprises a combination of one or more of a tooth movement type, a tooth movement angle, and a tooth movement direction;
the tooth movement types include tilt movement, bulk movement, torque movement, rotational movement, tooth elongation, and tooth depression;
orthodontic regimens corresponding to abnormal arch formation, abnormal dentition alignment;
and orthodontic regimens corresponding to abnormalities in the relationship of the dental arch, jaw bone and craniofacial bones.
Further, the predicted three-dimensional oral cavity model is generated by the steps comprising:
acquiring an orthodontic plan according to the orthodontic plan;
and adjusting the relative position relation of the teeth in the three-dimensional oral cavity model according to the orthodontic scheme to generate the predicted three-dimensional oral cavity model.
Preferably, the orthodontic planning further comprises:
and manufacturing the personalized correcting device according to the predicted three-dimensional oral cavity model.
Another aspect of the present invention provides an orthodontic plan generating system, including:
the first acquisition module is used for acquiring a skull image of a user;
the second acquisition module is used for acquiring a first characteristic parameter of the user according to the skull image;
the judging module is used for judging whether orthodontic treatment is needed or not for the malformation of the teeth of the user according to the first characteristic parameter;
the third obtaining module is used for obtaining the orthodontic type according to the obtained first characteristic parameter when the orthodontic treatment is needed;
the fourth acquisition module is used for acquiring a three-dimensional oral cavity model of the user;
and the orthodontic plan generating module is used for generating an orthodontic plan according to the three-dimensional oral cavity model and the orthodontic type.
Due to the technical scheme, the invention has the following beneficial effects:
1) according to the tooth orthodontic plan generation method and system provided by the invention, the orthodontic plan is generated according to the skull image and the three-dimensional oral cavity model of the user, the functions of predicting the orthodontic effect and manufacturing the personalized orthodontic device can be achieved, and the three-dimensional plaster model, the plaster model and the cut toothpaste teeth are not required to be manufactured, so that the workload of doctors or related technicians can be reduced.
2) According to the tooth orthodontic planning generation method and system provided by the invention, the generated predicted three-dimensional oral cavity model included in the orthodontic planning can provide a prospective orthodontic treatment effect for a user, so that the user worry is reduced or even eliminated; in addition, the predicted three-dimensional oral cavity model can also provide quantitative reference for clinical orthodontics so as to provide fine adjustment basis for the clinical orthodontics process, and the method is favorable for improving orthodontics accuracy and orthodontics treatment success rate and shortening the orthodontics treatment course.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a flowchart of a method for generating an orthodontic plan according to an embodiment of the invention;
FIG. 2 is a schematic diagram of a method of generating an orthodontic plan according to the present invention;
fig. 3 is a schematic structural diagram of a dental orthodontic plan generating system according to an embodiment of the invention;
fig. 4 is a schematic view of a scenario in one possible embodiment of the specification.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
Examples
With reference to fig. 1 to 4, the present embodiment provides a method for generating an orthodontic plan, including:
and acquiring and profiling basic information of the user, wherein the basic information of the user comprises name, age, gender and treatment date, and further comprises generated user numbers which correspond to the users one by one.
S100: a skull image of a user is acquired. The images of the user's skull can be obtained by a two-dimensional information acquisition device, such as: x-ray scans, CT scans, etc. The skull image of the user comprises a positive position sheet and a lateral position sheet of the user.
S200: and acquiring a first characteristic parameter of the user according to the skull image.
In an embodiment of the present specification, the first characteristic parameter includes at least a dental parameter and a cranial parameter.
The tooth parameters comprise parameters such as tooth cusps, tooth roots, tooth sockets, tooth grooves and the like of all teeth, parameters of tooth space between adjacent teeth, parameters of tooth occlusion between upper and lower teeth and other tooth parameters which are not listed in the parameters; the skull parameters include ear point (the uppermost point of the external auditory canal), nasion point (the foremost point of the nasofrontal suture), sphenoid point (the center of the sphenoid saddle image), point a (the anterior limit of the arch base of the upper jaw), point B (the anterior limit of the arch base of the lower jaw), Bolton point (the most concave point of the retrocondylar notch of the occipital bone), and other parameters not listed; in addition, the distances between the dental parameters and the bone parameters should be included.
Teeth include incisors, cuspids, and molars. For an incisor, the occlusal surface of the incisor has a ridge, that is, the first characteristic parameter of the incisor should also include the position of the ridge and the position of a plurality of characteristic points on the ridge; for the cuspid, the occlusal surface of the cuspid has a cuspid, and the first characteristic parameter of the cuspid comprises the position of the cuspid; the molar is divided into a premolar and a posterior molar, and the occlusal surface of the premolar is provided with two cusps and a sulcus, so that the first characteristic parameters of the premolar comprise the positions of the two cusps and the position of the sulcus and can also comprise the positions of a plurality of characteristic points on the sulcus; for posterior molars, the occlusal surface of the posterior molars has four cusps and one sulcus, and the first characteristic parameters of the posterior molars should include the positions of the four cusps and the position of the sulcus, and the positions of the plurality of characteristic points present in the sulcus. That is, in the embodiments of the present specification, it is not required that each of the teeth concerned have an equal number of first characteristic parameters.
S300: and judging whether orthodontic treatment is needed or not for the malformation of the teeth of the user according to the first characteristic parameter.
Specifically, the first characteristic parameter is input into a preset machine learning model to identify tooth malformation, and whether the user has dislocation of individual teeth (including labial dislocation, buccal dislocation, lingual dislocation, palatal dislocation, mesial dislocation, distal dislocation, high position, low position, transposition, translocation and the like), abnormal formation of dental arch, abnormal arrangement of dental rows (including dental arch stenosis, palatal vault, crowded dental rows, sparse dental rows, uneven midline and the like), or abnormal relationship between dental arch, jaw and cranium (including deviated jaw, inverted jaw, open jaw, anterior tooth retrozygosis, proximal malposition, mandibular protrusion, anterior tooth deep coverage, distal malposition, maxillary protrusion, superior and inferior dental arch, maxillary protrusion, one-side retrozygosis, asymmetric facial surface, anterior tooth deep zygosis and the like) is judged. If it is determined that the user has the tooth deformity problem, it is determined that the user needs orthodontic treatment, and step S400 is performed.
The preset machine learning model is obtained through image analysis training, and in the image analysis training process:
adjusting the model parameters of the preset machine learning model until the malformation analysis result output by the preset machine learning model is matched with the malformation labeling information carried by the input first characteristic parameters;
and taking the preset machine model corresponding to the adjusted model parameters as a tooth malformation recognition model. The tooth malformation recognition model is determined by machine learning training based on the labeled first characteristic parameters in the sample set.
The tooth malformation analysis model with high generalization capability is obtained by utilizing the deep convolutional neural network model training, and the identification adaptability to different scenes can be improved when the tooth malformation identification is carried out by utilizing the tooth malformation analysis model, so that the reliability and effectiveness of the tooth malformation identification can be greatly improved.
S400: if yes, acquiring the orthodontic type according to the first characteristic parameter.
The orthodontic type comprises an orthodontic type corresponding to individual tooth misalignment; orthodontic types corresponding to abnormalities in the formation of the dental arch, abnormal arrangement of the dentition, and orthodontic types corresponding to abnormalities in the relationship of the dental arch, jaw bone, and craniofacial. I.e. the orthodontic type corresponds to the result output by the machine learning model described above.
For example, problems with misalignment of individual teeth may include orthodontic types such as upper anterior tooth retraction, upper anterior tooth lowering, and the like.
The problems of abnormal formation of dental arches and abnormal arrangement of dental rows correspondingly comprise orthodontic types such as dental arch alignment, dental arch clearance closing, dental arch external expansion, dental arch internal contraction and the like.
The above is the analysis of the oral cavity deformity of the user based on the first characteristic parameter acquired by the two-dimensional skull image, and it is difficult to focus on the balance and symmetry of the human face because the two-dimensional skull image measurement and analysis are usually mainly focused on aesthetics and are not suitable for analyzing the anatomical volume and growth thereof.
In order to overcome the defects caused by only two-dimensional parameter analysis and achieve the effect of analyzing balance and symmetry more appropriately, the tooth orthodontic planning generation method provided by the embodiment of the specification is additionally provided with three-dimensional data, and the three-dimensional data and the two-dimensional data are combined.
S500: a three-dimensional oral cavity model of a user is obtained. The three-dimensional oral cavity model is obtained through a three-dimensional information obtaining device, and specifically, the three-dimensional oral cavity model of the user is obtained through the following steps:
s510: and scanning the oral cavity of the user to obtain a basic three-dimensional oral cavity model. The base three-dimensional oral cavity model may be obtained by a 3D scanner.
S520: acquiring a third characteristic parameter according to the basic three-dimensional oral cavity model; the third characteristic parameters comprise tooth parameters of each tooth and space position parameters of each tooth, namely the third characteristic parameters comprise parameters of cusp, tooth root, tooth socket, tooth groove and the like of each tooth, and three-dimensional space positions of cusp, tooth root, tooth socket, tooth groove and characteristic points thereof of each tooth.
S530: and carrying out registration processing on the basic three-dimensional oral cavity model according to the third characteristic parameter and the first characteristic parameter to obtain a three-dimensional oral cavity model.
The registration processing comprises the step of carrying out synchronous deformation operation on each tooth in the basic three-dimensional oral cavity model obtained by the 3D scanner through the three-dimensional information obtaining device so as to enable the third characteristic parameter to be attached to the first characteristic parameter, namely, carrying out synchronous size adjustment and direction angle adjustment on each tooth in the basic three-dimensional oral cavity model so that the two-dimensional skull image is the projection of the adjusted three-dimensional oral cavity model under a certain angle.
S600: generating an orthodontic plan from the three-dimensional oral model and the orthodontic type.
The orthodontic planning includes generating a predicted three-dimensional oral model.
Specifically, the predicted three-dimensional oral cavity model is obtained by the following steps:
first, an orthodontic solution is obtained according to the orthodontic type.
For example, when the orthodontic type of the user is acquired as the individual tooth misalignment, the orthodontic scheme includes the movement type, the movement angle, and the movement direction of the individual tooth involved: the individual tooth is either a tilting movement (with the fulcrum as the center, the crown and the root move in opposite directions), a gross movement (the crown and the root move simultaneously to a new position on the labial or palatoglossal side, equidistant mesial or distal), a torque movement (one part of the tooth moves and the other part limits one end, e.g., the root moves and the crown moves little or no), a rotational movement (the tooth rotates about the long axis of the tooth) or an elongation or depression of the tooth (the tooth moves along the long axis of the tooth).
When the obtained orthodontic type of the user is abnormal formation of dental arch and abnormal arrangement of dentition, taking the irregular dentition as an example, the orthodontic scheme comprises the sequential movement sequence, the mutual movement direction, the movement type, the movement angle, the movement direction and the like of each single tooth related to orthodontic treatment among a plurality of teeth. But also whether or not tooth extraction is required, etc.
Next, the three-dimensional oral model is adjusted according to an orthodontic regimen, including the position, relative position of the individual or plurality of teeth involved, and also including bone resorption (e.g., breakdown) or bone deposition (formation), resulting in the predicted three-dimensional oral model. The three-dimensional oral cavity model is adjusted according to the orthodontic scheme to pre-demonstrate the orthodontic process, so that the finally obtained predicted three-dimensional oral cavity model can represent the effect after orthodontic treatment is completed.
The pre-performing orthodontic process can be operated through equipment such as a control host, a display screen, an operating device and the like, and the three-dimensional oral cavity model is input into the control host; a doctor or a technician performs corresponding operation on the control host through the operation device; and the display screen is used for realizing and feeding back, such as visualization of three-dimensional oral cavity model processing, display of each step in the process, switching of view angles and the like. Alternatively, the operating device may be a console, and the console is connected to the control host through a data line. The display screen and the operating device can also be used in combination and superimposed, for example, the display screen can be a touch screen, so that the function or part of the function of the operating device can be implemented on the touch screen.
The orthodontic planning further comprises obtaining an orthodontic result, the orthodontic result comprising an orthodontic diagnosis result and an orthodontic effect prediction result, the obtaining an orthodontic structure comprising the steps of:
and acquiring a second characteristic parameter of the user according to the predicted three-dimensional oral cavity model.
And comparing and analyzing the second characteristic parameter with the first characteristic parameter to obtain an orthodontic diagnosis result and an orthodontic effect prediction result.
Acquiring a second characteristic parameter, namely tooth parameters (parameters such as tooth cusp, tooth root, tooth socket, tooth sulcus and the like of each tooth, tooth spacing parameters between adjacent teeth, tooth occlusion parameters between upper and lower teeth and the like) in the predicted three-dimensional oral cavity model after orthodontic treatment; and comparing the second characteristic parameters with the first characteristic parameters to obtain tooth orthodontic effect, and comparing the combination of the tooth parameters and skull parameters in the second characteristic parameters and the first characteristic parameters to analyze the improvement of orthodontic treatment on the coordination and balance of the face of the user and obtain whether the original tooth malformation problem can be improved or solved.
The orthodontic planning further comprises creating a personalized orthotic device based on the predicted three-dimensional oral cavity model. In the embodiment of the specification, the length of time can be predicted according to the orthodontic process, the orthodontic scheme can be divided into a plurality of treatment stages, and the orthodontic correction device conforming to each treatment stage can be manufactured according to the orthodontic scheme of each treatment stage and the predicted oral cavity model corresponding to each treatment stage.
In the above process of the embodiment of the present specification, the obtained images of the skull of the user and the three-dimensional oral cavity model of the user are regarded as data acquired by the first visit of the user by default, that is, the orthodontic diagnosis result and the orthodontic effect prediction result are generated by the images of the skull of the user and the three-dimensional oral cavity model of the user obtained at the first visit.
After the user undergoes orthodontic treatment for a period of time, the images of the skull of the user and the three-dimensional oral cavity model of the user can be obtained for the second time, the steps S100 to S600 are traversed, the orthodontic plan is finally generated again, and all results in the orthodontic plan generated for the first time are corrected according to all results in the orthodontic plan generated for the second time.
For example, in some embodiments, the orthodontic type obtained at the first visit is adjusted by the user predicted three-dimensional oral model obtained during the further orthodontic planning process, and a revised predicted three-dimensional oral model and a revised orthodontic plan are generated and stored. The skull image acquired at this time by the user and the orthodontic plan acquired by the three-dimensional oral cavity model of the user can be used for correcting the orthodontic plan acquired at the last time, so that the orthodontic accuracy and the orthodontic treatment success rate are improved.
In some preferred embodiments, only the above steps S100 to S400 may be traversed, and only the image of the skull of the user is obtained again, and the first characteristic parameter is obtained according to the obtained image of the skull of the user again to obtain the orthodontic type, so as to perform contrast analysis on the orthodontic type obtained in the last orthodontic treatment, and further adjust and correct the orthodontic plan obtained in the last orthodontic treatment, which is beneficial to improving orthodontic efficiency and convenience.
As shown in fig. 3, an embodiment of the present specification further provides a system for generating an orthodontic plan, which may be used to implement the method for generating an orthodontic plan provided by the foregoing technical solution, and specifically, the system includes:
the first acquisition module is used for acquiring a skull image of a user;
the second acquisition module is used for acquiring a first characteristic parameter of the user according to the skull image;
the judging module is used for judging whether orthodontic treatment is needed or not for the malformation of the teeth of the user according to the first characteristic parameter;
the third obtaining module is used for obtaining the orthodontic type according to the obtained first characteristic parameter when the orthodontic treatment is needed;
the fourth acquisition module is used for acquiring a three-dimensional oral cavity model of the user;
and the orthodontic plan generating module is used for generating an orthodontic plan according to the three-dimensional oral cavity model and the orthodontic type.
The tooth orthodontic plan generation method and the tooth orthodontic plan generation system provided by the embodiment of the specification can give consideration to plane aesthetics, three-dimensional space balance and symmetry, and generate an orthodontic plan according to a skull image and a three-dimensional oral cavity model of a user, so that the functions of predicting an orthodontic effect and manufacturing a personalized orthodontic device can be achieved, and the workload of doctors or related technicians can be reduced because the three-dimensional plaster model does not need to be manufactured, the plaster model is cut, and the cut toothpaste teeth are manually arranged.
In addition, according to the tooth orthodontic plan generation method and system provided by the embodiments of the present specification, the machine learning model is used to analyze the tooth malformation of the user to determine whether the user needs orthodontic treatment, so that the accuracy of determining numerous factors such as the type of the malformation and the severity of the malformation can be improved. Different judgments on the malformation caused by subjective factors such as different experience of different doctors and the like are avoided, and the subsequent judgment on the malformation type and the generation of the malformation plan are further influenced.
In addition, in the embodiments of the present disclosure, the orthodontic planning includes generating a predicted three-dimensional oral model that provides the user with a desired orthodontic treatment effect to reduce or eliminate user concerns; in addition, the predicted three-dimensional oral cavity model can also provide quantitative reference for clinical orthodontics so as to provide fine adjustment basis for the clinical orthodontics process, and the method is favorable for improving orthodontics accuracy and orthodontics treatment success rate and shortening the orthodontics treatment course.
While the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the details of the foregoing illustrative embodiments, and that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Also, in some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results.
Claims (1)
1. An orthodontic plan generating system, comprising:
the first acquisition module is used for acquiring a skull image of a user;
the second acquisition module is used for acquiring a first characteristic parameter of the user according to the skull image; the judging module is used for judging whether orthodontic treatment is needed or not for the malformation of the teeth of the user according to the first characteristic parameter;
the third obtaining module is used for obtaining the orthodontic type according to the obtained first characteristic parameter when the orthodontic treatment is needed; the orthodontic types include: orthodontic types corresponding to individual tooth misalignment; orthodontic types corresponding to abnormal arch formation, abnormal dentition alignment; the orthodontic type corresponding to abnormal formation and abnormal arrangement of dental arches comprises one or more of dental arch alignment, dental arch retraction and dental arch external expansion; and orthodontic types corresponding to abnormalities in the relationship of the dental arch, jaw bone and craniofacial;
the fourth acquisition module is used for acquiring a three-dimensional oral cavity model of the user; the acquiring of the three-dimensional oral cavity model of the user comprises the following steps: scanning the oral cavity of a user to obtain a basic three-dimensional oral cavity model; acquiring a third characteristic parameter according to the basic three-dimensional oral cavity model; according to a third characteristic parameter and the first characteristic parameter, carrying out registration processing on the basic three-dimensional oral cavity model to obtain the three-dimensional oral cavity model; the first characteristic parameters at least comprise tooth parameters and skull parameters; the tooth parameters comprise parameters of a tooth cusp, a tooth root, a tooth socket and a tooth groove of each tooth; a tooth spacing parameter between adjacent teeth; and the parameters of occlusion between the upper and lower teeth; the skull parameters comprise ear points, nasal root points, sphenoid saddle points and distances among the tooth parameters and the ear points, the nasal root points and the sphenoid saddle points;
an orthodontic plan generating module for generating an orthodontic plan according to the three-dimensional oral cavity model and the orthodontic type; the orthodontic planning comprises generating an orthodontic scheme, predicting a three-dimensional oral cavity model and obtaining an orthodontic result, predicting time length according to an orthodontic process, dividing the orthodontic scheme into a plurality of treatment stages, and manufacturing an individual correction device according with each treatment stage according to the orthodontic scheme of each treatment stage and the predicted three-dimensional oral cavity model corresponding to each treatment stage; the orthodontic scheme comprises: orthodontic regimens corresponding to individual tooth misalignment; the orthodontic protocol corresponding to individual tooth misalignment comprises a combination of one or more of a tooth movement type, a tooth movement angle, and a tooth movement direction; the tooth movement types include tilt movement, bulk movement, torque movement, rotational movement, tooth elongation, and tooth depression; orthodontic regimens corresponding to abnormal arch formation, abnormal dentition alignment; and orthodontic regimens corresponding to abnormalities in the relationship of the dental arch, jaw bone and craniofacial; the orthodontic result comprises an orthodontic diagnosis result and an orthodontic effect prediction result; said obtaining an orthodontic result comprises the steps of: acquiring a second characteristic parameter of the user according to the predicted three-dimensional oral cavity model; comparing and analyzing the second characteristic parameter with the first characteristic parameter to obtain an orthodontic diagnosis result and an orthodontic effect prediction result; after acquiring the orthodontic diagnosis result and the orthodontic effect prediction result, the method further comprises the following steps: acquiring the image of the skull of the user again; performing contrast analysis on the orthodontic plan according to the obtained skull image of the user again, and further adjusting and correcting the orthodontic plan obtained in the last orthodontic treatment; or acquiring the skull image of the user again and acquiring the three-dimensional oral cavity model of the user again; correcting the orthodontic plan according to the re-acquired skull image of the user and the re-acquired three-dimensional oral cavity model of the user; the predictive three-dimensional oral model is generated by the steps comprising: acquiring an orthodontic plan according to the orthodontic plan; and adjusting the relative position relation of the teeth in the three-dimensional oral cavity model according to the orthodontic scheme to generate the predicted three-dimensional oral cavity model.
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| CN115054395B (en) * | 2022-06-17 | 2024-03-19 | 上海隐齐齿科科技有限公司 | Method for synchronously measuring crowding degree of teeth and gap required for leveling Spee curve |
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