CN108243605A - A kind of maxillary central incisors sorting technique and system - Google Patents
A kind of maxillary central incisors sorting technique and system Download PDFInfo
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- 210000004283 incisor Anatomy 0.000 title claims abstract description 130
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000007408 cone-beam computed tomography Methods 0.000 claims abstract description 51
- 210000003254 palate Anatomy 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 7
- 206010043183 Teething Diseases 0.000 claims description 5
- 230000036346 tooth eruption Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000011017 operating method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241001556567 Acanthamoeba polyphaga mimivirus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- QWXYZCJEXYQNEI-OSZHWHEXSA-N intermediate I Chemical compound COC(=O)[C@@]1(C=O)[C@H]2CC=[N+](C\C2=C\C)CCc2c1[nH]c1ccccc21 QWXYZCJEXYQNEI-OSZHWHEXSA-N 0.000 description 1
- 210000001847 jaw Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/51—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for dentistry
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
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Abstract
A kind of sorting technique and system of maxillary central incisors position relationship are provided, wherein method includes：Obtain the CBCT images (S101) of maxillary central incisors to be sorted；CBCT images are marked according to preset strategy and make auxiliary line (S102)；The relative position relation of long axis of tooth line, enamelo-cemental junction and the tip of a root is obtained according to label and auxiliary line, the classification (S103) of maxillary central incisors is determined according to relative position relation.Classified automatically to different maxillary central incisors by computer technology, simplify the operating procedure classified in the prior art to maxillary central incisors, and improve the accuracy of classification.
Description
A kind of maxillary central incisors classification method and system
Technical field
[0001] the present invention relates to field of medical technology more particularly to a kind of maxillary central incisors classification methods and system.
Background technique
[0002] maxillary central incisors because aesthetic effect it is more demanding, Dental implantion inch of being expert at is most important.Using systematic sorting technique, it is capable of providing treatment recommendations scheme before more scientific Implant, improves the success rate and aesthetic effect of operation.In order to provide intuitive and accurate information to clinical treatment, generally classified in the prior art using CBCT (Cone Beam Computer Tomography, pencil-beam, which is thrown, recombinates fault image equipment according to computer) image inspection Check method to the maxillary central incisors of different cases.However, the sorting technique of currently used CBCT image detection method mainly obtains CBCT image by image documentation equipment, then by manually long axis of tooth line, enamelo-cemental junction and the tip of a root in CBCT image are marked and are measured, and classified with working experience to maxillary central incisors according to measurement result, its operating procedure is extremely complex, and is easy to appear error.
Technical problem
[0003] embodiment of the present invention provides a kind of maxillary central incisors classification method and system, it can be classified automatically to different maxillary central incisors by computer technology, simplify the operating procedure classified in the prior art to maxillary central incisors, and error caused by human factor can be avoided the occurrence of, the accuracy of classification is improved.
Solution to the problem
Technical solution
[0004] in a first aspect, the embodiment of the invention provides a kind of maxillary central incisors classification methods, this method comprises:
[0005] the CBCT image of maxillary central incisors to be sorted is obtained；
[0006] auxiliary line is marked and made to the CBCT image according to preset strategy；
[0007] relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root is obtained according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position.
[0008] on the other hand, the embodiment of the invention provides a kind of maxillary central incisors categorizing system, which includes:
[0009] CBCT image acquisition unit, for obtaining the CBCT image of maxillary central incisors to be sorted；
[0010] auxiliary line marking unit, for being marked and making auxiliary line to the CBCT image according to preset strategy；
[0011] taxon, for obtaining the relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position.
Advantageous effect of the invention
Beneficial effect
[0012] the CBCT image that the embodiment of the present invention passes through acquisition maxillary central incisors to be sorted；According to preset strategy auxiliary line is marked and made to the CBCT image；The relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root is obtained according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position, it can be classified automatically to different maxillary central incisors by computer technology, simplify the operating procedure classified in the prior art to maxillary central incisors, and error caused by human factor can be avoided the occurrence of, the accuracy of classification is improved.
To the brief description of accompanying drawing
Detailed description of the invention
[0013] technical solution in order to illustrate the embodiments of the present invention more clearly, the accompanying drawings required for describing the embodiments of the present invention are briefly described below, apparently, drawings in the following description are some embodiments of the invention, for those of ordinary skill in the art, without creative efforts, it is also possible to obtain other drawings based on these drawings.
[0014] Fig. 1 is a kind of schematic flow diagram of maxillary central incisors classification method provided in an embodiment of the present invention；
[0015] Fig. 2 is that CBCT image is labeled in a kind of maxillary central incisors classification method provided in an embodiment of the present invention and makees the schematic diagram after auxiliary line；
[0016] Fig. 3 is the specific implementation flow chart of step S103 in a kind of maxillary central incisors classification method provided in an embodiment of the present invention；
[0017] Fig. 4 be another embodiment of the present invention provides a kind of maxillary central incisors classification method schematic flow diagram；
[0018] Fig. 5 is a kind of schematic block diagram of maxillary central incisors categorizing system provided in an embodiment of the present invention；
[0019] Fig. 6 is the schematic block diagram of taxon in a kind of maxillary central incisors categorizing system provided in an embodiment of the present invention
[0020] Fig. 7 be another embodiment of the present invention provides a kind of maxillary central incisors categorizing system schematic block diagram；
[0021] Fig. 8 be another embodiment of the present invention provides a kind of maxillary central incisors categorizing system schematic block diagram.
Embodiments of the present invention
[0022] following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.
It [0023] is that the embodiment of the present invention provides a kind of schematic flow diagram of maxillary central incisors classification method, as shown in Fig. 1, this method be can comprise the following steps that referring to Fig. 1
[0024] in S101, the CBCT image of maxillary central incisors to be sorted is obtained.
[0025] in the present embodiment, step S101 is specifically included:
[0026] the cranium Maxillary region of person under test is scanned using CBCT machine, obtains the data of Dicom format；
[0027] data are loaded using medical image software, and three-dimensional reconstruction are carried out to the data, obtain include maxillary central incisors to be sorted CBCT image.
[0028] in the present embodiment, inch is being scanned using CBCT machine, person under test, which stands, to be loosened, and orbitomeatal plane is parallel to the ground, and face median perpendicular keeps intercuspal position occlusion in ground level.The medical image software uses MIMI
10.0 software of CS, 10.0 software of MIMICS can be reconstructed the data of the Dicom format of load, obtain front view, side view, top view, the 3D stereopsis figure of maxillary central incisors, then it reconstructs to obtain the 3D stereo reconstruction illustraton of model of the maxillary central incisors, i.e., the CBCT image of the described maxillary central incisors further according to the front view, the side view, the top view and the 3D stereopsis figure.
[0029] in S102, auxiliary line is marked and made to the CBCT image according to preset strategy.
[0030] schematic diagram for being labeled and making Fig. 2 shows CBCT image after auxiliary line, shown in Figure 2, in the present embodiment, step S102 is specifically included:
[0031] teething long axis L o is marked in the pulp cavity of maxillary central incisors in the CBCT image;
[0032] in the pulp cavity enamelo-cemental junction toward the first line segment L made at the pre-determined distance of cusp direction perpendicular to the long axis of tooth line1 ;The long axis of tooth line is by first line segment！^ point is line segment dl, line segment d2 two parts, wherein
, dl is the line segment of inclined lip side, and d2 is the line segment of inclined palate side；
[0033] make in the pulp cavity perpendicular to the long axis of tooth line and by the second line segment L of tip of a root salient point2, the long axis of tooth line is by the second line segment 1^2It is divided into line segment d3, line segment d4 two parts, wherein d3 is inclined lip side line section
, d4 is inclined palate side line section.
[0034] further, the pre-determined distance is 4mm in the present embodiment.
[0035] in S103, the relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root is obtained according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position.
[0036] Fig. 3 shows the specific implementation flow of step S103 in the present embodiment, shown in Figure 3, and in the present embodiment, step S103 be may comprise steps of:
[0037] in S301, the length of the line segment dl, the line segment d2, the line segment d3 and the line segment d4 are measured respectively.
[0038] in S302, compare the size of the length of line segment dl and the length of line segment d2, the maxillary central incisors are divided into according to comparison result by different major class.
[0039] in the present embodiment, if dl > d2, the maxillary central incisors are I major class；If dl < d2, the maxillary central incisors are π major class；If di=d2, the maxillary central incisors are m major class.
[0040] in S303, the length of calculating line segment d3 subtracts the difference of the length of line segment d4, and judges whether the difference is greater than preset threshold, and the maxillary central incisors of each major class are divided into different subclass again according to judging result.
[0041] in the present embodiment, after classifying according to dl, d2 to the maxillary central incisors, the maxillary central incisors of each major class can be divided into different subclass according further to d3, d4.It is specific:
[0042] work as dl > d2 inch, if d3-d4 > 2, the maxillary central incisors are inclined palate side I subclass；If d3-d4 < 2, the maxillary central incisors are inclined lip side I subclass；If d3-d4=2, the maxillary central incisors are intermediate I subclass；[0043] when dl<d2 inch, if d3-d4>2, the maxillary central incisors are inclined palate side Π subclass；If d3-d4 < 2, the maxillary central incisors are inclined lip side Π subclass；If d3-d4=2, the maxillary central incisors are intermediate Π subclass；[0044] when dl=d2 inch, if d3-d4 > 2, the maxillary central incisors are inclined palate side m subclass；If d3-d4 < 2, maxillary central incisors described in shellfish lj are inclined lip side m subclass；If d3-d4=2, the maxillary central incisors are intermediate m subclass
[0045] in the present embodiment, since the bone wall thickness of the other maxillary central incisors of every type and position are all different, therefore the corresponding orthodontic treatment plan used of different classes of maxillary central incisors is not also identical, after the completion of to maxillary central incisors classification, doctor can determine that most suitable orthodontic treatment plan performs the operation to patient according to the classification of the maxillary central incisors of patient.
[0046] as can be seen that a kind of maxillary central incisors classification method provided in this embodiment is to be sorted upper by obtaining more than
The CBCT image of jaw central incisor；According to preset strategy auxiliary line is marked and made to the CBCT image；The relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root is obtained according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position, so as to be classified automatically to different maxillary central incisors by computer technology, simplify the operating procedure classified in the prior art to maxillary central incisors, and error caused by human factor can be avoided the occurrence of, the accuracy of classification is improved.
[0047] Fig. 4 be another embodiment of the present invention provides a kind of maxillary central incisors classification method schematic flow diagram.It is shown in Figure 4, relative to a upper embodiment, a kind of maxillary central incisors classification method provided in this embodiment, in the relative positional relationship for obtaining long axis of tooth line, enamelo-cemental junction and the tip of a root according to the label and auxiliary line, after relationship determines the classifications of the maxillary central incisors depending on that relative position further include:
[0048] in S404, and display with the maxillary central incisors corresponding treatment recommendations determining according to the classification of the maxillary central incisors.
[0049] in the present embodiment, treatment recommendations corresponding to various classification maxillary central incisors are previously stored in computer, after the classification of maxillary central incisors of person under test has been determined, pre-stored treatment recommendations corresponding with the category directly can be looked for according to category Check, and the treatment recommendations for finding Check are shown to attending physician, it is referred to for attending physician, medical efficiency can be further increased in this way.
[0050] it should be noted that the specific implementation of the step S401 step S403 in the present embodiment is identical with the step S101 step S103 in embodiment illustrated in fig. 1, therefore, details are not described herein.
[0051] therefore, it can be seen that, a kind of maxillary central incisors classification method provided in this embodiment again may be by computer technology and classify automatically to different maxillary central incisors, simplify the operating procedure classified in the prior art to maxillary central incisors, and error caused by human factor can be avoided the occurrence of, the accuracy of classification is improved；Also, relative to a upper embodiment, the present embodiment can also provide corresponding preoperative advisory information according to classification results for attending physician, further improve medical efficiency.
[0052] Fig. 5 is a kind of schematic block diagram of maxillary central incisors categorizing system provided in an embodiment of the present invention, which is located in computer, the method for running embodiment illustrated in fig. 1 offer.It illustrate only part related to the present embodiment for ease of description.
[0053] shown in Figure 5, a kind of maxillary central incisors categorizing system provided in this embodiment, comprising:
[0054] CBCT image acquisition unit 1, for obtaining the CBCT image of maxillary central incisors to be sorted；
[0055] auxiliary line marking unit 2, for being marked and making auxiliary line to the CBCT image according to preset strategy；
[0056] taxon 3, for obtaining the relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position.
[0057] optionally, the CBCT image acquisition unit 1 is specifically used for:
[0058] the cranium Maxillary region of person under test is scanned using CBCT machine, obtains the data of Dicom format；
[0059] data are loaded using medical image software, and three-dimensional reconstruction are carried out to the data, obtain include maxillary central incisors to be sorted CBCT image.
[0060] optionally, the auxiliary line marking unit 2 is specifically used for:
[0061] teething long axis is marked in the pulp cavity of maxillary central incisors in the CBCT image；
[0062] in the pulp cavity enamelo-cemental junction toward the first line segment made at the pre-determined distance of cusp direction perpendicular to the long axis of tooth line, first line segment is divided into line segment dl, line segment d2 two parts by the long axis of tooth line, wherein, dl is the line segment of inclined lip side, and d2 is the line segment of inclined palate side；
[0063] make in the pulp cavity perpendicular to the long axis of tooth line and by the second line segment of tip of a root salient point, the second line segment is divided into line segment d3, line segment d4 two parts by the long axis of tooth line, wherein, d3 is inclined lip side line section, and d4 is inclined palate side line section.
[0064] optionally, shown in Figure 6, the taxon 3 includes:
[0065] measuring unit 31, for measuring the length of the line segment dl, the line segment d2, the line segment d3 and the line segment d4 respectively；
The maxillary central incisors are divided into different major class according to comparison result for comparing the size of the length of line segment dl and the length of line segment d2 by [0066] first comparing unit 32；
[0067] difference computational unit 33, the length for calculating line segment d3 subtract the difference of the length of line segment d4；
The maxillary central incisors of each major class are divided into different subclass according to judging result for judging whether the difference is greater than preset threshold by [0068] second comparing unit 34 again.
[0069] optionally, shown in Figure 7, in another embodiment (method that the system in the embodiment is used to run embodiment illustrated in fig. 4 offer), the maxillary central incisors categorizing system further include:
[0070] treatment recommendations acquiring unit 4, and display with the maxillary central incisors corresponding treatment recommendations determining for the classification according to the maxillary central incisors.
[0071] it should be noted that each unit in maxillary central incisors categorizing system provided in this embodiment is since embodiment of the present invention method is based on same design, bring technical effect is identical as embodiment of the present invention method, specifically
Content can be found in the narration in embodiment of the present invention method, and details are not described herein again.
[0072] therefore, it can be seen that, maxillary central incisors categorizing system provided in an embodiment of the present invention again may be by computer technology and classify automatically to different maxillary central incisors, simplify the operating procedure classified in the prior art to maxillary central incisors, and error caused by human factor can be avoided the occurrence of, the accuracy of classification is improved.
[0073] referring to Fig. 8, be another embodiment of the present invention provides a kind of maxillary central incisors categorizing system schematic block diagram, which is used to run the method that Fig. 1 of the present invention and embodiment illustrated in fig. 4 provide.For ease of description, it illustrate only part related to the present embodiment.
[0074] shown in Figure 8, a kind of maxillary central incisors categorizing system provided in this embodiment, comprising:
[0075] processor 810 (processor), 820 (Communications of communication interface
Interface), memory 830 (memory), bus 840.
[0076] processor 810, communication interface 820, memory 830 complete mutual communication by bus 840.
[0077] communication interface 820, are used for and cable modem communication.
[0078] processor 810, for executing program 831.
[0079] specifically, program 831 may include program code, and said program code includes computer operation instruction.
[0080] processor 810 may be a central processor CPU, either specific integrated circuit ASIC (Applicatio n Specific Integrated Circuit), or be arranged to implement one or more integrated circuits of the embodiment of the present invention.
[0081] memory 830, for storing program 831.Memory 830 may include high speed RAM memory, it is also possible to further include nonvolatile memory (non-volatile memory), for example, at least a magnetic disk storage.Program 831 specifically includes:
[0082] CBCT image acquisition unit 1, for obtaining the CBCT image of maxillary central incisors to be sorted；
[0083] auxiliary line marking unit 2, for being marked and making auxiliary line to the CBCT image according to preset strategy；
[0084] taxon 3, for obtaining the relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position.
[0085] optionally, the CBCT image acquisition unit 1 is specifically used for:
[0086] the cranium Maxillary region of person under test is scanned using CBCT machine, obtains the data of Dicom format；
[0087] data are loaded using medical image software, and three-dimensional reconstruction are carried out to the data, obtain include to
The CBCT image of the maxillary central incisors of classification.
[0088] optionally, the auxiliary line marking unit 2 is specifically used for:
[0089] teething long axis is marked in the pulp cavity of maxillary central incisors in the CBCT image；
[0090] in the pulp cavity enamelo-cemental junction toward the first line segment made at the pre-determined distance of cusp direction perpendicular to the long axis of tooth line, first line segment is divided into line segment dl, line segment d2 two parts by the long axis of tooth line, wherein, dl is the line segment of inclined lip side, and d2 is the line segment of inclined palate side；
[0091] make in the pulp cavity perpendicular to the long axis of tooth line and by the second line segment of tip of a root salient point, the second line segment is divided into line segment d3, line segment d4 two parts by the long axis of tooth line, wherein, d3 is inclined lip side line section, and d4 is inclined palate side line section.
[0092] optionally, the taxon 3 includes:
[0093] measuring unit 31, for measuring the length of the line segment dl, the line segment d2, the line segment d3 and the line segment d4 respectively；
The maxillary central incisors are divided into different major class according to comparison result for comparing the size of the length of line segment dl and the length of line segment d2 by [0094] first comparing unit 32；
[0095] difference computational unit 33, the length for calculating line segment d3 subtract the difference of the length of line segment d4；
The maxillary central incisors of each major class are divided into different subclass according to judging result for judging whether the difference is greater than preset threshold by [0096] second comparing unit 34 again.
[0097] optionally, described program 831 further include:
[0098] treatment recommendations acquiring unit 4, and display with the maxillary central incisors corresponding treatment recommendations determining for the classification according to the maxillary central incisors.
[0099] it is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of unit, can refer to corresponding processes in the foregoing method embodiment in the system of foregoing description, and details are not described herein.
[0100] in several embodiments provided herein, it should be understood that disclosed system and method may be implemented in other ways.Such as, the apparatus embodiments described above are merely exemplary, such as, the division of the unit, only a kind of logical function partition, there may be another division manner for practical realization inch, such as multiple units or components can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed mutual coupling or direct-coupling or communication
Connection can be through some communication interfaces 820, the indirect coupling or communication connection of device or unit, can be electrical property, mechanical or other forms.
[0101] unit as illustrated by the separation member, which may or may not be, physically divides Jian's, component shown as a unit may or may not be physical unit, can be in one place, or may be distributed on multiple network modules.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
[0102] in addition, each functional unit in each embodiment of the present invention can integrate in a processing module, it is also possible to each unit and physically exists alone, can also be integrated in two or more units in a module.
[0103] the steps in the embodiment of the present invention can be sequentially adjusted, merged and deleted according to actual needs.
[0104] unit in system of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
[0105] if the function is realized in the form of software function module and sells as independent product or using inch, can store in a terminal read/write memory medium.Based on this understanding, substantially the part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products technical solution of the present invention in other words, the software product is stored in a storage medium, including some instructions are used so that a terminal (can be mobile phone, IPAD etc.) performs all or part of the steps of the method described in the various embodiments of the present invention.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Readonly Memory), random access memory (RAM, Random Access Memory), the various media that can store program code such as magnetic or disk.
[0106] it is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description and the specific work process of unit can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
[0107] described above; only a specific embodiment of the invention; but scope of protection of the present invention is not limited thereto; anyone skilled in the art is in the technical scope disclosed by the present invention; various equivalent modifications or substitutions can be readily occurred in, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (11)
- ClaimsA kind of [claim 1] maxillary central incisors classification method characterized by comprisingObtain the CBCT image of maxillary central incisors to be sorted；According to preset strategy auxiliary line is marked and made to the CBCT image；The relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root is obtained according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position.[claim 2] maxillary central incisors classification method according to claim 1, which is characterized in that the CBCT image for obtaining maxillary central incisors to be sorted specifically includes:Be scanned using cranium Maxillary region of the CBCT machine to person under test, the data for obtaining Dicom format load the data using medical image software, and carry out three-dimensional reconstruction to the data, obtain include maxillary central incisors to be sorted CBCT image.[claim 3] maxillary central incisors classification method according to claim 1, which is characterized in that described to be marked and do auxiliary line to the CBCT image according to preset strategy and include:The label teething long axis in the pulp cavity of maxillary central incisors in the CBCT image；Enamelo-cemental junction is toward work at the pre-determined distance of cusp direction perpendicular to the first line segment of the long axis of tooth line in the pulp cavity, first line segment is divided into line segment dl, line segment d2 two parts by the long axis of tooth line, wherein, dl is the line segment of inclined lip side, and d2 is the line segment of inclined palate side；Make in the pulp cavity perpendicular to the long axis of tooth line and by the second line segment of tip of a root salient point, the second line segment is divided into line segment d3, line segment d4 two parts by the long axis of tooth line, wherein d3 is inclined lip side line section, and d4 is inclined palate side line section.[claim 4] maxillary central incisors classification method according to claim 3, it is characterized in that, the relative positional relationship that long axis of tooth line, enamelo-cemental junction and the tip of a root are obtained according to the label and auxiliary line, relationship determines that the classification of the maxillary central incisors includes: to measure the length of the line segment dl, the line segment d2, the line segment d3 and the line segment d4 respectively depending on that relative position；The maxillary central incisors are divided into different major class according to comparison result by the size for comparing the length of line segment dl and the length of line segment d2； The length of calculating line segment d3 subtracts the difference of the length of line segment d4, and judges whether the difference is greater than preset threshold, and the maxillary central incisors of each major class are divided into different subclass again according to judging result.[claim 5] maxillary central incisors classification method according to claim 1, it is characterized in that, the relative positional relationship that long axis of tooth line, enamelo-cemental junction and the tip of a root are obtained according to the label and auxiliary line, after relationship determines the classifications of the maxillary central incisors depending on that relative position further include: determining according to the classification of the maxillary central incisors and show treatment recommendations corresponding with the maxillary central incisors.A kind of [claim 6] maxillary central incisors categorizing system characterized by comprisingCBCT image acquisition unit, for obtaining the CBCT image of maxillary central incisors to be sorted；Auxiliary line marking unit, for being marked and making auxiliary line to the CBCT image according to preset strategy；Taxon, for obtaining the relative positional relationship of long axis of tooth line, enamelo-cemental junction and the tip of a root according to the label and auxiliary line, relationship determines the classification of the maxillary central incisors depending on that relative position.[claim 7] maxillary central incisors categorizing system according to claim 6, which is characterized in that the CBCT image acquisition unit is specifically used for:Be scanned using cranium Maxillary region of the CBCT machine to person under test, the data for obtaining Dicom format load the data using medical image software, and carry out three-dimensional reconstruction to the data, obtain include maxillary central incisors to be sorted CBCT image.[claim 8] maxillary central incisors categorizing system according to claim 6, which is characterized in that the auxiliary line marking unit is specifically used for:The label teething long axis in the pulp cavity of maxillary central incisors in the CBCT image；Enamelo-cemental junction is toward work at the pre-determined distance of cusp direction perpendicular to the first line segment of the long axis of tooth line in the pulp cavity, first line segment is divided into line segment dl, line segment d2 two parts by the long axis of tooth line, wherein, dl is the line segment of inclined lip side, and d2 is the line segment of inclined palate side；Make perpendicular to the long axis of tooth line and pass through the second line segment of tip of a root salient point in the pulp cavity, The second line segment is divided into line segment d3, line segment d4 two parts by the long axis of tooth line, wherein d3 is inclined lip side line section, and d4 is inclined palate side line section.[claim 9] maxillary central incisors categorizing system according to claim 8, which is characterized in that the taxon includes:Measuring unit, for measuring the length of the line segment dl, the line segment d2, the line segment d3 and the line segment d4 respectively；The maxillary central incisors are divided into different major class according to comparison result for comparing the size of the length of line segment dl and the length of line segment d2 by the first comparing unit；Difference computational unit, the length for calculating line segment d3 subtract the difference of the length of line segment d4；The maxillary central incisors of each major class are divided into different subclass according to judging result for judging whether the difference is greater than preset threshold by the second comparing unit again.[claim 10] maxillary central incisors categorizing system according to claim 6, it is characterized in that, further include: treatment recommendations acquiring unit, and display with the maxillary central incisors corresponding treatment recommendations determining for the classification according to the maxillary central incisors.
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| PCT/CN2016/103083 WO2018076142A1 (en) | 2016-10-24 | 2016-10-24 | Method and system for classifiying maxillary central incisor |
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