CN115363797B - Application method of full-mouth dentition data - Google Patents

Application method of full-mouth dentition data Download PDF

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CN115363797B
CN115363797B CN202210817334.2A CN202210817334A CN115363797B CN 115363797 B CN115363797 B CN 115363797B CN 202210817334 A CN202210817334 A CN 202210817334A CN 115363797 B CN115363797 B CN 115363797B
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data
dental arch
curve
dentition
current patient
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CN115363797A (en
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赵创
牛力
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Beijing Liaison Dental Technology Co Ltd
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Beijing Liaison Dental Technology Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00Dental prostheses; Making same
    • A61C13/0003Making bridge-work, inlays, implants or the like
    • A61C13/0004Computer-assisted sizing or machining of dental prostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00Dental auxiliary appliances
    • A61C19/04Measuring instruments specially adapted for dentistry
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00Dental auxiliary appliances
    • A61C19/04Measuring instruments specially adapted for dentistry
    • A61C19/05Measuring instruments specially adapted for dentistry for determining occlusion
    • GPHYSICS
    • G16INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16HHEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/50ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders

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  • Biomedical Technology (AREA)
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  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
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  • Data Mining & Analysis (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The invention provides a method for using full-mouth dentition data, which comprises the following steps: performing bite registration of the current patient, and marking on the bite registration to obtain first aesthetic data; scanning the upper and lower jaw model and the bite record by using a scanner to generate first 3D data; and matching the historical full-mouth dentition data serving as a reference template with the first 3D data, adjusting a matching result based on the design requirement of the current patient to obtain a dentition design result of the current patient, and then designing other conventional parts of the bridge according to design software and bridge design rules. The whole manufacturing process of the planting bridge frame manufacturing, including the clinical operation process, is optimized; meanwhile, the upper and lower dentition occlusion data which are designed in the past in the design software are used as a reference template to be stored. When designing, the first 3D data is imported into design software, after the bridge frame prototype is formed initially, the manufacturing can be completed by slightly adjusting the dental arch shape of a patient.

Description

Application method of full-mouth dentition data
Technical Field
The invention relates to the technical field of denture restoration, in particular to a method for using full dentition data.
Background
At present, a bridge frame manufacturing method in planting and repairing is that after a model with an occlusion record is scanned into 3D data, the 3D data is imported into design software, a base station is firstly manufactured, and then the base station is connected by a rod card; then manually adding an abutment on the rod clamp, and then completing the manufacture of the integral bridge.
Firstly, the producer is required to have higher technical level, and the bridge meeting the requirements can be designed by integrating the repairing elements by considering the occlusion relationship of the upper jaw and the lower jaw, the upper and lower occlusal curves, the root-crown root parting line, the front tooth aesthetic and the like; secondly, the process of manually adding the abutment in the manufacturing process is a process which is increased from no to no, and the process is long in time consumption and low in efficiency.
Disclosure of Invention
The invention provides a method for using full-mouth dentition data, which reduces the manufacturing flow of an integral bridge, shortens the manufacturing time of the integral bridge, reduces the manufacturing difficulty and improves the bridge manufacturing efficiency.
The invention provides a method for using full-mouth dentition data, which comprises the following steps:
s1: performing bite registration of the current patient, and marking on the bite registration to obtain first aesthetic data;
s2: scanning the upper and lower jaw models and the bite records of the current patient by using a scanner to generate first 3D data;
S3: integrating the first 3D data and importing the first 3D data into design software;
S4: the method comprises the steps of using historical full-mouth dentition data as a reference template, matching the historical full-mouth dentition data with first 3D data to obtain a matching result, and adjusting the matching result based on the design requirement of the current patient to obtain the dentition design result of the current patient;
s5: based on design software and the dentition design result, cutting back the dental crowns to generate bridge abutment teeth;
S6: generating a bridge penetrating gingiva based on the design software and a bridge design rule;
s7: checking an implant screw empty opening on the bridge, and generating a complete bridge based on the bridge abutment and the bridge penetrating gingiva after confirming that the implant screw empty opening on the bridge is matched with a screw on the implant;
s8: based on the complete bridge, second 3D data of the bridge is generated.
Preferably, when the first aesthetic data is absent from the bite registration, second aesthetic data is obtained based on the current patient's historical control data and transferred to the bite registration.
Preferably, the S1 further includes:
Based on the first aesthetic data, obtaining first dental arch curve of the current patient and first dental arch data corresponding to the dental arch curve;
Comparing the first dental arch data with standard dental arch data, and judging whether the dental arch appearance of the current patient is the standard dental arch appearance;
When the difference between the first dental arch data and the standard dental arch data is not in the preset range, the first dental arch curve of the current patient is judged to be trimmed based on the standard dental arch data, and a second dental arch curve is generated.
Preferably, when the difference between the first dental arch data and the standard dental arch data is not within the preset range, the step of determining to trim the first dental arch curve of the current patient based on the standard dental arch data to obtain the second dental arch curve includes the following specific steps:
Determining the position of a dental arch variable curve of a current patient according to the comparison result of the first dental arch data and the standard dental arch data, and calibrating the head and tail positioning points of the dental arch variable curve to serve as a first adjusting point;
Acquiring the number of first teeth on an arch variation curve based on the current patient's upper and lower jaw models;
When the number of the first teeth is larger than the preset number, acquiring the size of the first teeth and the inter-dental space thereof based on the current upper and lower jaw models of the patient;
marking the edge position of each first tooth on the dental arch variation curve according to the size of the first tooth and the inter-dental space distance thereof to obtain a plurality of position marking points;
Acquiring a tooth type of a first tooth, classifying the first tooth according to the tooth type, and acquiring a plurality of tooth sets;
The method comprises the steps of taking a first tooth in the same tooth set as a second tooth, acquiring a position mark point of the second tooth, and judging whether adjacent teeth exist in the same tooth set;
If adjacent teeth exist in the same tooth set, eliminating adjacent position mark points of adjacent second teeth, and reserving residual position mark points as second adjustment points;
If no adjacent teeth exist in the same tooth set, marking a plurality of position mark points in the same tooth set as second adjustment points; ;
determining a constant tooth center position of a current patient based on the bite record of the current patient, and determining an arch symmetry line of a first arch curve according to the constant tooth center position;
Judging whether the symmetrical dental arch of the dental arch variation curve generates dental arch variation or not based on dental symmetry lines, and if yes, acquiring a standard radian corresponding to the dental arch variation curve based on standard dental arch data;
According to the standard radian, adjusting the dental arch variable curve based on the first adjusting point and the second adjusting point to generate a second dental arch curve;
If not, the dental arch radian of the symmetrical dental arch is obtained, and the alien dental arch curve is adjusted based on the first adjusting point and the second adjusting point according to the dental arch radian, so that a second dental arch curve is generated.
Preferably, after the second arch curve is generated, the bite registration of the current patient is automatically updated based on the second arch curve.
Preferably, the step S4 specifically includes:
s401: obtaining designed historical full-mouth dental row data and importing the data into design software;
S402: taking the historical full-mouth dentition data as a reference template, classifying according to dental arch characteristics and dental arch characteristics, and establishing a personalized full-mouth dentition database;
s403: screening in a personalized full-mouth dental database based on the first 3D data to obtain a final matching reference template;
s404: and adjusting the final matching reference template according to the design requirement of the current patient to obtain the dentition design result of the current patient.
Preferably, S403: screening in a personalized full-mouth dental column database based on the first 3D data to obtain a final matching reference template, wherein the specific steps comprise:
S4031: acquiring the missing tooth data of the current patient based on the first 3D data, and determining the missing tooth type of the current patient;
S4032: screening in a personalized full-mouth dentition database according to the type of the missing teeth to obtain a first reference template to be selected, and obtaining first dentition data corresponding to the first reference template to be selected;
simulating and calibrating a first position of a first dentition corresponding to a first reference template to be selected in an oral cavity on a standard upper and lower jaw model based on the first dentition data;
S4033: judging whether the first position is consistent with the dentition missing position of the current patient based on the teeth missing data of the current patient;
if the first reference template is inconsistent, judging that the first reference template is not the final matching reference model of the current patient;
If the first reference template and the second reference template are consistent, judging that the first reference template is the second reference template, and acquiring a third dental arch curve corresponding to the second reference template and a first symmetry line corresponding to the third dental arch curve;
meanwhile, according to the first 3D data, a fourth dental arch curve of the current patient and a second symmetry line corresponding to the fourth dental arch curve are obtained;
According to the dental arch curve change characteristics of the standard dental arch curve, selecting a plurality of curve radian change positioning points on the dental arch curve as standard positioning points;
Marking on a third dental arch curve according to the standard positioning points to obtain first positioning points; marking the fourth dental arch curve to obtain a second positioning point;
Overlapping the third dental arch curve and the fourth dental arch curve according to the first symmetry line and the second symmetry line, and respectively obtaining the position difference between the first positioning point and the second positioning point corresponding to the first positioning point;
According to the position difference, obtaining the dental arch similarity of a third dental arch curve and a fourth dental arch curve, and screening a second reference model to be selected corresponding to the third dental arch curve with the dental arch similarity larger than a preset threshold value to be used as a third reference template to be selected;
acquiring first arrangement data of the complete dentition of the historical patient corresponding to the third reference template to be selected, and comparing the first arrangement data with second arrangement data of the complete dentition of the current patient to acquire a dentition comparison result;
S4034: and obtaining the optimal reference model to be selected according to the dentition comparison result, and taking the optimal reference model to be selected as a final matching reference model.
Preferably, S404: according to the design requirement of the current patient, the final matching reference template is adjusted to obtain the dentition design result of the current patient, and the specific steps comprise:
s4041: determining the tooth size of the dentition to be designed of the current patient according to the second arrangement data of the complete dentition of the current patient;
s4042: determining dentition curve data of the current patient based on the first 3D data;
s4043: and adjusting the final matching reference template according to the tooth size and the dentition curve data to obtain the dentition design result of the current patient.
Preferably, S7: checking the implant screw empty opening on the bridge, which comprises the following specific steps:
s701: acquiring first thread features of an implant screw hollow opening on a bridge, wherein the first thread features comprise the size of the screw hollow opening, thread lines and the rotation direction of the threads;
S702: acquiring a second thread characteristic of a screw on the implant in a database of design software;
S703: comparing the first thread characteristic with the second thread characteristic, and judging whether the empty opening of the implant screw on the bridge is matched with the screw on the implant or not based on the screw matching rule.
Preferably, S8 further comprises: and generating second 3D data of the bridge based on the complete bridge, and then visually presenting the second 3D data.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram showing steps of a method for using full dentition data according to an embodiment of the present invention;
Fig. 2 is a schematic diagram of a method S4 for using full dentition data according to an embodiment of the present invention;
Fig. 3 is a diagram illustrating a method S7 for using full dentition data according to an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Example 1:
the invention provides a method for using full-mouth dentition data, as shown in figure 1, comprising the following steps:
s1: performing bite registration of the current patient, and marking on the bite registration to obtain first aesthetic data;
s2: scanning the upper and lower jaw models and the bite records of the current patient by using a scanner to generate first 3D data;
S3: integrating the first 3D data and importing the first 3D data into design software;
S4: the method comprises the steps of using historical full-mouth dentition data as a reference template, matching the historical full-mouth dentition data with first 3D data to obtain a matching result, and adjusting the matching result based on the design requirement of the current patient to obtain the dentition design result of the current patient;
s5: based on design software and the dentition design result, cutting back the dental crowns to generate bridge abutment teeth;
S6: generating a bridge penetrating gingiva based on the design software and a bridge design rule;
s7: checking an implant screw empty opening on the bridge, and generating a complete bridge based on the bridge abutment and the bridge penetrating gingiva after confirming that the implant screw empty opening on the bridge is matched with a screw on the implant;
s8: based on the complete bridge, second 3D data of the bridge is generated.
In this embodiment, the first aesthetic data refers to the physician marking the midline, the angular line of the mouth, and the jaw plane directly on the patient's bite registration.
In this embodiment, the first 3D data refers to 3D data obtained by a doctor scanning the current patient's maxillary and mandibular models and bite records using a scanning instrument.
In this embodiment, the historical full-mouth dentition data refers to the full-mouth dentition data (i.e., upper and lower dentition data) of the historical patient that has been designed.
In this embodiment, the second 3D data refers to the 3D data of the complete bridge after all the designs are completed.
The beneficial effects of the technical scheme are that: the invention optimizes the whole manufacturing process of the planting bridge frame, including the process of clinical operation; meanwhile, the upper and lower dentition occlusion data which are designed in the past in the design software are used as a reference template to be stored. During design, the stored occlusion data is imported into design software, after the bridge frame prototype is formed initially, the bridge frame prototype is slightly adjusted according to the dental arch appearance of a patient, and then manufacturing can be completed. The invention reduces the manufacturing flow of the integral bridge, shortens the manufacturing time of the integral bridge, reduces the manufacturing difficulty and improves the bridge manufacturing efficiency.
Example 2:
On the basis of example 1, when the first aesthetic data is absent on the bite registration, second aesthetic data is obtained based on the history control data of the current patient, and the second aesthetic data is transferred to the bite registration.
In this embodiment, the second aesthetic data refers to aesthetic marking data according to historical control data (intra-oral photographs, old dentures, aesthetic wax teeth, etc.) of the current patient when the doctor does not manually aesthetic mark on the bite registration of the current patient.
The beneficial effects of the technical scheme are that: according to the invention, when a doctor does not manually mark the bite record of the current patient, second aesthetic data is obtained according to the historical control data (oral cavity internal photo, old denture, aesthetic wax tooth and the like) of the current patient, and the second aesthetic data is transferred to the bite record, so that the aesthetic data is marked on the bite record, and a foundation is provided for trimming the dental arch curve.
Example 3:
on the basis of embodiment 1, the S1 further includes:
Based on the first aesthetic data, obtaining first dental arch curve of the current patient and first dental arch data corresponding to the dental arch curve;
Comparing the first dental arch data with standard dental arch data, and judging whether the dental arch appearance of the current patient is the standard dental arch appearance;
When the difference between the first dental arch data and the standard dental arch data is not in the preset range, the first dental arch curve of the current patient is judged to be trimmed based on the standard dental arch data, and a second dental arch curve is generated.
In this embodiment, the first dental arch curve is a dental arch curve obtained according to the bite record of the current patient and the upper and lower jaw models; the first arch curve data refers to the curvature and symmetry of the entire curve of the first arch curve at various locations.
In this embodiment, the standard dental arch data refers to dental arch data corresponding to a perfect dental arch curve suitable for the current patient, which is determined according to the bite record of the current patient and the upper and lower jaw models.
In this embodiment, the second arch curve refers to the first arch curve after trimming according to standard arch data.
The beneficial effects of the technical scheme are that: the present invention detects the dental arch curve of the current patient, and when the dental arch curve of the current patient (the first dental arch curve) is not the standard dental arch curve, the dental arch curve of the current patient is trimmed to have a perfect dental arch shape (the second dental arch curve).
Example 4:
On the basis of embodiment 3, when the difference between the first dental arch data and the standard dental arch data is not within the preset range, it is determined that the first dental arch curve of the current patient is trimmed based on the standard dental arch data, and a second dental arch curve is obtained, which specifically includes the steps of:
Determining the position of a dental arch variable curve of a current patient according to the comparison result of the first dental arch data and the standard dental arch data, and calibrating the head and tail positioning points of the dental arch variable curve to serve as a first adjusting point;
Acquiring the number of first teeth on an arch variation curve based on the current patient's upper and lower jaw models;
When the number of the first teeth is larger than the preset number, acquiring the size of the first teeth and the inter-dental space thereof based on the current upper and lower jaw models of the patient;
marking the edge position of each first tooth on the dental arch variation curve according to the size of the first tooth and the inter-dental space distance thereof to obtain a plurality of position marking points;
Acquiring a tooth type of a first tooth, classifying the first tooth according to the tooth type, and acquiring a plurality of tooth sets;
The method comprises the steps of taking a first tooth in the same tooth set as a second tooth, acquiring a position mark point of the second tooth, and judging whether adjacent teeth exist in the same tooth set;
If adjacent teeth exist in the same tooth set, eliminating adjacent position mark points of adjacent second teeth, and reserving residual position mark points as second adjustment points;
If no adjacent teeth exist in the same tooth set, marking a plurality of position mark points in the same tooth set as second adjustment points; ;
determining a constant tooth center position of a current patient based on the bite record of the current patient, and determining an arch symmetry line of a first arch curve according to the constant tooth center position;
Judging whether the symmetrical dental arch of the dental arch variation curve generates dental arch variation or not based on dental symmetry lines, and if yes, acquiring a standard radian corresponding to the dental arch variation curve based on standard dental arch data;
According to the standard radian, adjusting the dental arch variable curve based on the first adjusting point and the second adjusting point to generate a second dental arch curve;
If not, the dental arch radian of the symmetrical dental arch is obtained, and the alien dental arch curve is adjusted based on the first adjusting point and the second adjusting point according to the dental arch radian, so that a second dental arch curve is generated.
In this embodiment, the arch variability curve refers to a non-standard curve segment on the first arch curve.
In this embodiment, the first adjustment point refers to two points at two ends of the arch transformation curve, and according to these two points, the position of the arch transformation curve on the whole first arch curve can be removed.
In this embodiment, the first tooth refers to a tooth at a corresponding position on the upper and lower jaw models of the arch curve.
In this embodiment, the edge positions refer to positions on both sides of each tooth, and the distance between two edge positions of the same tooth is determined by the width of the tooth.
In this embodiment, the position mark points refer to edge position locating points of all the first teeth on the arch change curve.
In this embodiment, the set of teeth is a first tooth of the same tooth type (e.g., incisors, cuspids, molars) divided into the same set.
In this embodiment, the second tooth refers to the first tooth in the set of teeth.
In this embodiment, adjacent position-marking points refer to adjacent position-marking points between adjacent teeth.
In this embodiment, the second adjustment point means that all remaining position mark points of the adjacent position mark points are deleted.
In this embodiment, the permanent tooth center position refers to the symmetrical center position of all teeth of the upper jaw or the lower jaw.
In this embodiment, the arch symmetry line refers to the symmetry line of the arch curve, which passes through the permanent tooth center position.
In this embodiment, the symmetrical dental arch refers to a symmetrical dental arch at a dental arch alienation position.
In this embodiment, the standard arc is a standard curve arc corresponding to an arch change curve determined according to standard arch data.
In this embodiment, the arch radian refers to the curve radian of a symmetric arch determined by the symmetric position of the arch change curve.
The beneficial effects of the technical scheme are that: according to the method, the position of the dental arch variable curve of the current patient is determined according to the comparison result of the first dental arch data and the standard dental arch data, meanwhile, the head and tail positioning points of the dental arch variable curve are calibrated to serve as first adjusting points, and a plurality of second adjusting points are determined on the dental arch variable curve (between two first adjusting points) according to the types and the numbers of the first teeth on the dental arch variable curve, so that the dental arch curve can be more accurately trimmed.
Determining a constant tooth center position of a current patient based on the bite record of the current patient, and determining an arch symmetry line of a first arch curve according to the constant tooth center position; judging whether the symmetrical dental arch of the dental arch variation curve generates dental arch variation or not based on dental symmetry lines, and if yes, acquiring a standard radian corresponding to the dental arch variation curve based on standard dental arch data; according to the standard radian, adjusting the dental arch variable curve based on the first adjusting point and the second adjusting point to generate a second dental arch curve; if not, the dental arch radian of the symmetrical dental arch is obtained, the different dental arch curve is adjusted based on the first adjusting point and the second adjusting point according to the dental arch radian, and the second dental arch curve is generated, so that the finished dental arch appearance can solve the perfect dental arch appearance more.
Example 5:
on the basis of example 4, after the second arch curve is generated, the bite registration of the current patient is automatically updated based on the second arch curve.
The beneficial effects of the technical scheme are that: after the second dental arch curve is generated, the occlusion record of the current patient is automatically updated based on the second dental arch curve, so that the data omission after trimming is avoided.
Example 6:
based on embodiment 1, S4, as shown in fig. 2, specifically includes the steps of:
s401: obtaining designed historical full-mouth dental row data and importing the data into design software;
S402: taking the historical full-mouth dentition data as a reference template, classifying according to dental arch characteristics and dental arch characteristics, and establishing a personalized full-mouth dentition database;
s403: screening in a personalized full-mouth dental database based on the first 3D data to obtain a final matching reference template;
s404: and adjusting the final matching reference template according to the design requirement of the current patient to obtain the dentition design result of the current patient.
In this embodiment, the arch features include arch size and arch shape features.
In this embodiment, the final matching reference template refers to a reference template suitable for the current patient obtained by screening in a personalized full-mouth dental database,
The beneficial effects of the technical scheme are that: the invention derives the upper and lower dentition data designed by actual cases, classifies the data according to the dental arch size, the dental arch appearance characteristics, the dental arch and the like, and uses the data as a personalized full-mouth dentition database, thereby greatly improving the working efficiency; the upper dentition occlusion data and the lower dentition occlusion data which are designed in the design software in the past are used as reference templates, so that the difficulty is reduced for a producer, and only the relationship between occlusion, tooth shape and teeth and gingiva is required to be finely adjusted.
Example 7:
Based on example 6, S403: screening in a personalized full-mouth dental column database based on the first 3D data to obtain a final matching reference template, wherein the specific steps comprise:
S4031: acquiring the missing tooth data of the current patient based on the first 3D data, and determining the missing tooth type of the current patient;
S4032: screening in a personalized full-mouth dentition database according to the type of the missing teeth to obtain a first reference template to be selected, and obtaining first dentition data corresponding to the first reference template to be selected;
simulating and calibrating a first position of a first dentition corresponding to a first reference template to be selected in an oral cavity on a standard upper and lower jaw model based on the first dentition data;
S4033: judging whether the first position is consistent with the dentition missing position of the current patient based on the teeth missing data of the current patient;
if the first reference template is inconsistent, judging that the first reference template is not the final matching reference model of the current patient;
If the first reference template and the second reference template are consistent, judging that the first reference template is the second reference template, and acquiring a third dental arch curve corresponding to the second reference template and a first symmetry line corresponding to the third dental arch curve;
meanwhile, according to the first 3D data, a fourth dental arch curve of the current patient and a second symmetry line corresponding to the fourth dental arch curve are obtained;
According to the dental arch curve change characteristics of the standard dental arch curve, selecting a plurality of curve radian change positioning points on the dental arch curve as standard positioning points;
Marking on a third dental arch curve according to the standard positioning points to obtain first positioning points; marking the fourth dental arch curve to obtain a second positioning point;
Overlapping the third dental arch curve and the fourth dental arch curve according to the first symmetry line and the second symmetry line, and respectively obtaining the position difference between the first positioning point and the second positioning point corresponding to the first positioning point;
According to the position difference, obtaining the dental arch similarity of a third dental arch curve and a fourth dental arch curve, and screening a second reference model to be selected corresponding to the third dental arch curve with the dental arch similarity larger than a preset threshold value to be used as a third reference template to be selected;
acquiring first arrangement data of the complete dentition of the historical patient corresponding to the third reference template to be selected, and comparing the first arrangement data with second arrangement data of the complete dentition of the current patient to acquire a dentition comparison result;
S4034: and obtaining the optimal reference model to be selected according to the dentition comparison result, and taking the optimal reference model to be selected as a final matching reference model.
In this embodiment, the missing teeth data includes the type, number, and location of teeth that are missing from the current patient.
In this embodiment, the missing tooth type refers to the type of tooth that the current patient lacks, e.g., the first molar.
In this embodiment, the first reference template to be selected refers to a reference template designed according to the same tooth type selected according to the tooth type of the missing tooth of the current patient in the personalized full dental database.
In this embodiment, the first dentition data refers to dentition data of a first reference template to be selected, including a bridge applicable position, a bridge tooth size, and the like, designed by the first reference template.
In this embodiment, the standard maxillary and mandibular model refers to a fixed-parameter maxillary and mandibular model stored in a personalized full-mouth dentition database.
In this embodiment, the first position refers to a position of the first reference template to be selected, which is shown on the standard upper and lower jaw model and is suitable for application.
In this embodiment, the missing dentition position refers to the position of the missing teeth of the current patient.
In this embodiment, the second reference template to be selected refers to a first reference template to be selected whose first position is consistent with the missing dentition position of the current patient.
In this embodiment, the third dental arch curve refers to a dental arch curve corresponding to the second reference template to be selected; the fourth dental arch curve refers to a dental arch curve corresponding to the dental arch curve data of the current patient in the first 3D data.
In this embodiment, the characteristic of the arch curve is a characteristic of the curve radian change according to the arch position, and the change amplitude of the curve at different positions is different.
In this embodiment, the standard positioning points refer to positions where the change amplitude of the dental arch changes on the standard dental arch curve, and the number of the standard positioning points is greater than or equal to 2.
In this embodiment, the first positioning point is an obtained positioning point marked at the same position of the third dental arch curve according to the position of the standard positioning point; the second positioning point is the obtained positioning point marked at the same position of the fourth dental arch curve according to the position of the standard positioning point.
In this embodiment, the first symmetry line refers to a symmetry line of the third arch curve; the second symmetry line refers to the symmetry line of the fourth arch curve.
In this embodiment, the position is different from the distance between the first positioning point and the second positioning point corresponding to the first positioning point.
In this embodiment, the third candidate reference template refers to a second candidate reference model having a dental arch similarity with the dental arch curve of the current patient greater than a preset threshold.
In this embodiment, the first arrangement data refers to the size of the tooth gap and the size of the tooth on the third reference template to be selected; the second ranking data refers to the size of the tooth gaps and the size of the teeth that are present in the current patient's maxillary and mandibular model.
In this embodiment, the dentition comparison result refers to the comparison result of the first arrangement data and the second arrangement data
In this embodiment, the best candidate reference model refers to a third candidate reference template corresponding to the first arrangement data closest to the second arrangement data after the first arrangement data and the second arrangement data are compared.
The beneficial effects of the technical scheme are that: the method comprises the steps of acquiring missing tooth data of a current patient based on first 3D data, and determining the type of missing teeth of the current patient; screening in a personalized full-mouth dentition database according to the type of the missing teeth to obtain a first reference template to be selected, and obtaining first dentition data corresponding to the first reference template to be selected; simulating and calibrating a first position of a first dentition corresponding to a first reference template to be selected in an oral cavity on a standard upper and lower jaw model based on the first dentition data; judging whether the first position is consistent with the dentition missing position of the current patient based on the teeth missing data of the current patient; if the first reference template is inconsistent, judging that the first reference template is not the final matching reference model of the current patient;
If the first reference template and the second reference template are consistent, judging that the first reference template is the second reference template, and acquiring a third dental arch curve corresponding to the second reference template and a first symmetry line corresponding to the third dental arch curve; meanwhile, according to the first 3D data, a fourth dental arch curve of the current patient and a second symmetry line corresponding to the fourth dental arch curve are obtained; according to the dental arch curve change characteristics of the standard dental arch curve, selecting a plurality of curve radian change positioning points on the dental arch curve as standard positioning points; marking on a third dental arch curve according to the standard positioning points to obtain first positioning points; marking the fourth dental arch curve to obtain a second positioning point; overlapping the third dental arch curve and the fourth dental arch curve according to the first symmetry line and the second symmetry line, and respectively obtaining the position difference between the first positioning point and the second positioning point corresponding to the first positioning point; according to the position difference, obtaining the dental arch similarity of a third dental arch curve and a fourth dental arch curve, and screening a second reference model to be selected corresponding to the third dental arch curve with the dental arch similarity larger than a preset threshold value to be used as a third reference template to be selected; acquiring first arrangement data of the complete dentition of the historical patient corresponding to the third reference template to be selected, and comparing the first arrangement data with second arrangement data of the complete dentition of the current patient to acquire a dentition comparison result;
According to the invention, upper and lower dentition data which are designed in the past in design software are used as reference templates, and screening is carried out according to the actual dentition data (first 3D data) of the current patient, so that the final matching reference model is obtained, the difficulty in manufacturing a dental bridge is reduced, and the bridge design efficiency is improved.
Example 8:
Based on example 7, S404: according to the design requirement of the current patient, the final matching reference template is adjusted to obtain the dentition design result of the current patient, and the specific steps comprise:
s4041: determining the tooth size of the dentition to be designed of the current patient according to the second arrangement data of the complete dentition of the current patient;
s4042: determining dentition curve data of the current patient based on the first 3D data;
s4043: and adjusting the final matching reference template according to the tooth size and the dentition curve data to obtain the dentition design result of the current patient.
In this embodiment, the dentition curve data refers to currently drawn dental arch data including dental arch radians and dental arch lengths.
The beneficial effects of the technical scheme are that: according to the second arrangement data of the complete dentition of the current patient, the tooth size of the dentition to be designed of the current patient is determined; determining dentition curve data of the current patient based on the first 3D data; and adjusting the final matching reference template according to the tooth size and the dentition curve data to obtain the dentition design result of the current patient, so that the manufactured dental bridge is ensured to be suitable for the current patient, and the use satisfaction degree of the patient is improved.
Example 9:
Based on example 1, S7: checking the implant screw empty opening on the bridge, as shown in fig. 3, specifically comprising the following steps:
s701: acquiring first thread features of an implant screw hollow opening on a bridge, wherein the first thread features comprise the size of the screw hollow opening, thread lines and the rotation direction of the threads;
S702: acquiring a second thread characteristic of a screw on the implant in a database of design software;
S703: comparing the first thread characteristic with the second thread characteristic, and judging whether the empty opening of the implant screw on the bridge is matched with the screw on the implant or not based on the screw matching rule.
In this embodiment, the second thread sign means that the thread feature on the implant includes a screw size, a thread line, and a thread rotation direction.
In this embodiment, the screw matching rule means that the matching screws have identical thread characteristics except for the opposite rotation directions of the threads.
The beneficial effects of the technical scheme are that: the invention detects the hollow opening of the implant screw on the bridge, ensures the fit of the designed tooth bridge and the implant, and ensures the practicability of the bridge design.
Example 10:
on the basis of embodiment 1, S8 further includes: and generating second 3D data of the bridge based on the complete bridge, and then visually presenting the second 3D data.
The beneficial effects of the technical scheme are that: according to the invention, based on the complete bridge, after the second 3D data of the bridge is generated, the second 3D data is visually presented, and the design result is more intuitively displayed to a doctor.
Example 11:
Based on the above embodiment 7, in S4033, according to the position difference, the dental arch similarity between the third dental arch curve and the fourth dental arch curve is obtained, which specifically includes the steps of:
S01: taking an overlapping symmetry line of the overlapping dental arches as an ordinate axis, drawing a straight line perpendicular to the ordinate axis through the center of the overlapping dental arches symmetry line as an abscissa axis, and establishing a position coordinate system;
S02: based on a position coordinate system, acquiring a first position coordinate of an ith first positioning point and a second position coordinate of a second positioning point corresponding to the ith first positioning point (namely, the ith second positioning point), and calculating a position distance between the ith first positioning point and the second positioning point corresponding to the ith first positioning point according to the following formula:
Wherein, L i represents the position distance between the ith first positioning point and the corresponding second positioning point; x i,1 represents the abscissa of the ith first positioning point; y i,1 represents the ordinate of the i-th first positioning point; (X i,1,Yi,1) represents the first position coordinates of the i-th first positioning point; x i,2 represents the abscissa of the ith second anchor point; y i,2 represents the ordinate of the ith second anchor point; (X i,2,Yi,2) represents the second position coordinates of the ith second positioning point;
s03: calculating the dental arch similarity of the third dental arch curve and the fourth dental arch curve according to the position difference between the first positioning point and the second positioning point corresponding to the first positioning point and the following companies:
Wherein Sim represents the arch similarity of the third arch curve and the fourth arch curve; l 0 represents a maximum allowable error value of the position errors of the first positioning point and the second positioning point; max (|l i-L0 |) represents the maximum value of the position gap between the first positioning point and its corresponding second positioning point; alpha represents an adjusting factor, and the value is (0, 1).
The beneficial effects of the technical scheme are that: according to the method, the dental arch similarity of the third dental arch curve and the fourth dental arch curve is obtained according to the position difference, so that a basis is provided for screening of the reference model, the screened reference model is more similar to the current patient self situation, and a basis is provided for reducing model adjustment.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. A method of using full dentition data, comprising:
s1: performing bite registration of the current patient, and marking on the bite registration to obtain first aesthetic data;
wherein, the first aesthetic data refers to that a doctor directly marks a midline, an angular line of the mouth and a jaw plane on the bite record of the patient;
s2: scanning the upper and lower jaw models and the bite records of the current patient by using a scanner to generate first 3D data;
S3: integrating the first 3D data and importing the first 3D data into design software;
S4: the method comprises the steps of using historical full-mouth dentition data as a reference template, matching the historical full-mouth dentition data with first 3D data to obtain a matching result, and adjusting the matching result based on the design requirement of the current patient to obtain the dentition design result of the current patient;
s5: based on design software and the dentition design result, cutting back the dental crowns to generate bridge abutment teeth;
S6: generating a bridge penetrating gingiva based on the design software and a bridge design rule;
s7: checking an implant screw empty opening on the bridge, and generating a complete bridge based on the bridge abutment and the bridge penetrating gingiva after confirming that the implant screw empty opening on the bridge is matched with a screw on the implant;
S8: generating second 3D data of the bridge based on the complete bridge;
Wherein, the S1 includes:
Based on the first aesthetic data, obtaining first dental arch curve of the current patient and first dental arch data corresponding to the dental arch curve;
Comparing the first dental arch data with standard dental arch data, and judging whether the dental arch appearance of the current patient is the standard dental arch appearance;
when the difference between the first dental arch data and the standard dental arch data is not in a preset range, determining that the first dental arch curve of the current patient is trimmed based on the standard dental arch data, and generating a second dental arch curve;
When the difference between the first dental arch data and the standard dental arch data is not in a preset range, the first dental arch curve of the current patient is judged to be trimmed based on the standard dental arch data, and a second dental arch curve is obtained, and the specific steps comprise:
Determining the position of a dental arch variable curve of a current patient according to the comparison result of the first dental arch data and the standard dental arch data, and calibrating the head and tail positioning points of the dental arch variable curve to serve as a first adjusting point;
Acquiring the number of first teeth on an arch variation curve based on the current patient's upper and lower jaw models;
When the number of the first teeth is larger than the preset number, acquiring the size of the first teeth and the inter-dental space thereof based on the current upper and lower jaw models of the patient;
marking the edge position of each first tooth on the dental arch variation curve according to the size of the first tooth and the inter-dental space distance thereof to obtain a plurality of position marking points;
Acquiring a tooth type of a first tooth, classifying the first tooth according to the tooth type, and acquiring a plurality of tooth sets;
then taking the first tooth in the same tooth set as a second tooth, acquiring a position mark point of the second tooth, and judging whether adjacent teeth exist in the same tooth set;
If adjacent teeth exist in the same tooth set, eliminating adjacent position mark points of adjacent second teeth, and reserving residual position mark points as second adjustment points;
if no adjacent teeth exist in the same tooth set, marking a plurality of position mark points in the same tooth set as second adjustment points;
determining a constant tooth center position of a current patient based on the bite record of the current patient, and determining an arch symmetry line of a first arch curve according to the constant tooth center position;
Judging whether the symmetrical dental arch of the dental arch variation curve generates dental arch variation or not based on dental symmetry lines, and if yes, acquiring a standard radian corresponding to the dental arch variation curve based on standard dental arch data;
According to the standard radian, adjusting the dental arch variable curve based on the first adjusting point and the second adjusting point to generate a second dental arch curve;
If not, the dental arch radian of the symmetrical dental arch is obtained, and the alien dental arch curve is adjusted based on the first adjusting point and the second adjusting point according to the dental arch radian, so that a second dental arch curve is generated.
2. A method of using full dentition data according to claim 1 wherein: when the first aesthetic data is absent from the bite registration, second aesthetic data is obtained based on the current patient's historical control data and transferred to the bite registration.
3. A method of using full dentition data according to claim 1 wherein: after generating the second arch curve, the bite registration of the current patient is automatically updated based on the second arch curve.
4. The method of using full dentition data according to claim 1 wherein S4 comprises the specific steps of:
s401: obtaining designed historical full-mouth dental row data and importing the data into design software;
S402: taking the historical full-mouth dentition data as a reference template, classifying according to dental arch characteristics and dental arch characteristics, and establishing a personalized full-mouth dentition database;
s403: screening in a personalized full-mouth dental database based on the first 3D data to obtain a final matching reference template;
s404: and adjusting the final matching reference template according to the design requirement of the current patient to obtain the dentition design result of the current patient.
5. The method for using full dentition data according to claim 4 wherein S403: screening in a personalized full-mouth dental column database based on the first 3D data to obtain a final matching reference template, wherein the specific steps comprise:
S4031: acquiring the missing tooth data of the current patient based on the first 3D data, and determining the missing tooth type of the current patient;
S4032: screening in a personalized full-mouth dentition database according to the type of the missing teeth to obtain a first reference template to be selected, and obtaining first dentition data corresponding to the first reference template to be selected;
simulating and calibrating a first position of a first dentition corresponding to a first reference template to be selected in an oral cavity on a standard upper and lower jaw model based on the first dentition data;
S4033: judging whether the first position is consistent with the dentition missing position of the current patient based on the teeth missing data of the current patient;
if the first reference template is inconsistent, judging that the first reference template is not the final matching reference model of the current patient;
If the first reference template and the second reference template are consistent, judging that the first reference template is the second reference template, and acquiring a third dental arch curve corresponding to the second reference template and a first symmetry line corresponding to the third dental arch curve;
meanwhile, according to the first 3D data, a fourth dental arch curve of the current patient and a second symmetry line corresponding to the fourth dental arch curve are obtained;
According to the dental arch curve change characteristics of the standard dental arch curve, selecting a plurality of curve radian change positioning points on the dental arch curve as standard positioning points;
Marking on a third dental arch curve according to the standard positioning points to obtain first positioning points; marking the fourth dental arch curve to obtain a second positioning point;
Overlapping the third dental arch curve and the fourth dental arch curve according to the first symmetry line and the second symmetry line, and respectively obtaining the position difference between the first positioning point and the second positioning point corresponding to the first positioning point;
According to the position difference, obtaining the dental arch similarity of a third dental arch curve and a fourth dental arch curve, and screening a second reference model to be selected corresponding to the third dental arch curve with the dental arch similarity larger than a preset threshold value to be used as a third reference template to be selected;
acquiring first arrangement data of the complete dentition of the historical patient corresponding to the third reference template to be selected, and comparing the first arrangement data with second arrangement data of the complete dentition of the current patient to acquire a dentition comparison result;
S4034: and obtaining the optimal reference model to be selected according to the dentition comparison result, and taking the optimal reference model to be selected as a final matching reference model.
6. The method of claim 5, wherein S404: according to the design requirement of the current patient, the final matching reference template is adjusted to obtain the dentition design result of the current patient, and the specific steps comprise:
s4041: determining the tooth size of the dentition to be designed of the current patient according to the second arrangement data of the complete dentition of the current patient;
s4042: determining dentition curve data of the current patient based on the first 3D data;
s4043: and adjusting the final matching reference template according to the tooth size and the dentition curve data to obtain the dentition design result of the current patient.
7. The method of using full dentition data according to claim 1 wherein S7: checking the implant screw empty opening on the bridge, which comprises the following specific steps:
s701: acquiring first thread features of an implant screw hollow opening on a bridge, wherein the first thread features comprise the size of the screw hollow opening, thread lines and the rotation direction of the threads;
S702: acquiring a second thread characteristic of a screw on the implant in a database of design software;
S703: comparing the first thread characteristic with the second thread characteristic, and judging whether the empty opening of the implant screw on the bridge is matched with the screw on the implant or not based on the screw matching rule.
8. The method of using full dentition data according to claim 1 wherein S8 further comprises: and generating second 3D data of the bridge based on the complete bridge, and then visually presenting the second 3D data.
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