CN109875682B - Construction method of guide plate for guiding ascending and supporting reduction and fixation of maxillary teeth - Google Patents
Construction method of guide plate for guiding ascending and supporting reduction and fixation of maxillary teeth Download PDFInfo
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- CN109875682B CN109875682B CN201910232020.4A CN201910232020A CN109875682B CN 109875682 B CN109875682 B CN 109875682B CN 201910232020 A CN201910232020 A CN 201910232020A CN 109875682 B CN109875682 B CN 109875682B
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Abstract
The invention relates to the field of medical equipment, in particular to a construction method of a guide plate for guiding lifting support to reset and fix by maxillary teeth. The invention provides a construction method of a guide plate for guiding lifting and resetting and fixing of maxillary teeth, which comprises the following steps: constructing and obtaining a three-dimensional fusion model; constructing and obtaining a locating area; constructing and obtaining a hole site region; constructing a hole site area buckling part; the connection is constructed. The construction method of the guide plate for the upper jaw guide lifting branch resetting and fixing and the guide plate for the upper jaw guide lifting branch resetting and fixing, which are obtained by construction, are convenient to position, a non-operation area is not required to be exposed additionally, the guide plate positioning area is fixed on the upper jaw dentition of a patient, the hole position area is buckled on the affected side lifting branch, and the relative position relation between the upper jaw dentition, the lifting branch and the condylar processes is transmitted by the connecting rod in the middle of the guide plate.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a construction method of a guide plate for guiding lifting support to reset and fix by maxillary teeth.
Background
In clinical practice it has been found that when mandibular reconstruction is required (in particular secondary reconstruction) after segmental resection of the mandible, the ascending branch and the condyle have been displaced. In the operation, the mandible reconstruction is difficult to be carried out according to the original position, and the mandible space relation and the mandible appearance are not coordinated after the bone grafting, so that the mandible function and the appearance recovery are seriously affected. So how to accurately reposition and fix the ascending branch and the condyle to the original position in the operation is one of the preconditions for obtaining good functional reconstruction of the mandible.
Currently clinically adopted ascending branch and condyle in-situ retaining technologies mainly comprise a Luhr's fixing technology, an external fixing technology and the like. The Luhr's fixation technique requires fixation through the maxillary bone face, which can cause trauma to the non-operative area. The external fixing device is adopted for fixation, and the problems of long installation time, trauma to healthy bone tissues, easy occurrence of iatrogenic fracture and the like are faced.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a method for constructing a guide plate for guiding a maxillary dental elevator to be restored and fixed, which is used for solving the problems in the prior art.
To achieve the above and other related objects, according to one aspect of the present invention, there is provided a method for constructing a guide plate model for restoring and fixing a maxillary dental guide, comprising:
constructing and obtaining a three-dimensional fusion model based on a jaw three-dimensional model, a maxillary tooth three-dimensional model and a mandibular tooth three-dimensional model, wherein the jaw three-dimensional model comprises a mandibular ascending branch fixing area;
constructing and obtaining a positioning area based on the outer surface of the maxillary tooth;
constructing and obtaining a hole site area around the mandibular ascending branch fixing area based on the mandibular ascending branch outer side surface, wherein the hole site area extends from the front edge of the mandibular ascending branch to the rear edge of the mandibular ascending branch;
constructing a hole site area buckling part based on a mandibular sigmoid notch of a mandibular ascending branch;
and constructing connecting parts which are respectively connected with the hole site area and the position area and are positioned outside the hole site area and the position area.
In some embodiments of the invention, the three-dimensional model of the jaw bone comprises a maxilla and a mandible.
In some embodiments of the invention, the three-dimensional fusion model is fused based on at least 3 reference points selected from the group consisting of one or more of cuspids, premolars, molar cuspids, incisor nodules on crowns.
In some embodiments of the invention, the thickness of the seating area is 2-3 mm and the thickness of the hole site area is 2-3 mm.
In some embodiments of the invention, the length of the connection is 15-20 mm.
In some embodiments of the invention, further comprising: and constructing a positioning part penetrating through the hole site region on the hole site region.
In another aspect, the present invention provides a method for preparing a guide plate for maxillary guided elevating and repositioning and fixing, the method comprising: and preparing the guide plate for the maxillary guide ascending and descending and fixing according to the guide plate model for the maxillary guide ascending and descending and fixing, which is constructed by the construction method of the guide plate model for the maxillary guide ascending and descending and fixing.
The invention further provides a guide plate for guiding the rising branches to reset and fix the upper teeth, which is obtained by constructing a guide plate model for guiding the rising branches to reset and fix the upper teeth by a construction method or by preparing the guide plate for guiding the rising branches to reset and fix the upper teeth by a preparation method.
In another aspect, the present invention provides a computer readable storage medium having a computer program stored thereon, wherein the program when executed by a processor implements the steps of the method for constructing a model of a guide plate for maxillary guided debranching and fixing, or the steps of the method for preparing a guide plate for maxillary guided debranching and fixing.
Another aspect of the invention provides an apparatus comprising: the device comprises a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory so as to enable the device to execute the steps of the method for constructing the upper jaw guide lifting branch resetting and fixing guide plate model or the steps of the method for preparing the upper jaw guide lifting branch resetting and fixing guide plate.
The invention further provides a guide plate for guiding lifting branches to reset and fix the lifting branches of the upper teeth, which comprises a positioning piece for being attached to the upper teeth and a hole site piece for being attached to the outer side surface of the lifting branches of the lower jaws, wherein the hole site piece is provided with a holding port of a fixing area of the lifting branches of the lower jaws, the holding port is opened from the middle part of the hole site piece to the direction of the angle of the lower jaws, the jaw notch side of the hole site piece is also provided with a buckling piece for buckling jaw notches, the positioning piece is connected with the hole site piece through a connecting piece, and the hole site piece is provided with a positioning hole penetrating through the hole site piece.
In some embodiments of the invention, the seating element is snugly fitted to at least a portion of the maxillary tooth, the seating element having a thickness of 2-3 mm.
In some embodiments of the invention, the shape of the medial abutment of the hole site piece matches the shape of the lateral surface of the mandibular ascending branch, and the thickness of the hole site piece is 2-3 mm.
In some embodiments of the present invention, the positioning hole penetrates through the hole site piece, and the hole site piece is provided with a plurality of positioning holes.
In some embodiments of the present invention, the positioning holes are uniformly distributed on the hole site piece, the positioning holes are cylindrical holes, and the diameter is 1.8-2.2 mm.
In some embodiments of the invention, the connector extends along the outside surface of the hole site piece and/or the seat piece, and the length of the connector is 15-20 mm according to the extending direction.
In some embodiments of the invention, the connector is connected at one end to the seat member and at the other end to the side of the hole member adjacent to the leading edge of the mandibular ascending branch.
In some embodiments of the invention, the connector is cylindrical with a diameter of 4-6 mm.
In some embodiments of the invention, the fastener is circuitous and the thickness of the fastener is 2-3 mm.
Drawings
Fig. 1 shows the overall structure of the present invention.
FIG. 2 is a schematic view showing the use state of the present invention.
FIG. 3 is a diagram illustrating reading information according to an embodiment of the invention.
Fig. 4 shows a three-dimensional reconstruction of patient head data in accordance with an embodiment of the present invention.
Fig. 5 is a schematic view showing a mandibular osteotomy range determination in accordance with an embodiment of the present invention.
Fig. 6 shows a data fusion registration schematic diagram according to an embodiment of the present invention.
FIG. 7 is a schematic view of the design of the lifting return and fixing guide plate according to the embodiment of the invention.
Description of element reference numerals
1. Positioning piece
2. Connecting piece
3. Hole site piece
4. Fastening piece
5. Positioning hole
6. Mandibular ascending branch fixation area
7. Mandible rising branch fixing area containing port
Detailed Description
The inventor provides a new construction method of the guide plate for guiding the rising branches to reset and fix the upper teeth through a large amount of practical research, and the constructed guide plate for guiding the rising branches to reset and fix the lower teeth in the original position can be used for carrying out minimally invasive, stable, simple and accurate recovery and fixing on the lower teeth.
The first aspect of the invention provides a method for constructing a guide plate model for guiding rising branches to reset and fix maxillary teeth, which comprises the following steps:
s1) constructing and obtaining a three-dimensional fusion model based on a jaw three-dimensional model, a maxillary tooth three-dimensional model and a mandibular tooth three-dimensional model, wherein the jaw three-dimensional model comprises a mandibular ascending branch fixing area;
s2) constructing and obtaining a positioning area based on the outer surface of the maxillary tooth;
s3) constructing and obtaining a hole site area around the mandibular ascending branch fixing area based on the outer side surface of the mandibular ascending branch, wherein the hole site area extends from the front edge of the mandibular ascending branch to the rear edge of the mandibular ascending branch;
s4) constructing a hole site area buckling part based on mandibular sigmoid notch of mandibular ascending branch;
s5) constructing connecting parts which are respectively connected with the hole site area and the position area and are positioned outside the hole site area and the position area.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: a three-dimensional model of the jaw is obtained, and the three-dimensional model of the jaw comprises a mandibular ascending branch fixing area. The three-dimensional model of the jawbone can be obtained by importing CT data into software, and can be specifically software such as Medraw, mimics, and the jawbone can generally comprise parts of the jawbone, the jawbone and the like. The mandibular ascending branch fixation area is generally located outside of the mandibular ascending branch, generally in the middle of the mandibular ascending branch, and may extend to the mandibular angle outside of the mandibular ascending branch, generally corresponding to the mandibular repair site, for connecting the mandibular repair site with the mandibular retention part.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: and acquiring the upper jaw tooth three-dimensional model and the lower jaw tooth three-dimensional model. When obtaining the three-dimensional model of the maxilla and/or the mandible, the model may be generally obtained by taking the model of the maxilla and the mandible (for example, by pouring a plaster model), scanning the model (for example, by laser scanning), thereby obtaining the data of the point cloud of the maxilla and the mandible (i.e., by recording the surface data of the model by the point coordinates), importing the data of the point cloud into software, converting the data of the point cloud into a triangular patch model, and repairing the surface of the model, thereby generating the three-dimensional model of the maxilla and the three-dimensional model of the mandible, and the model file may be in the format of STL, specifically, software such as Medraw, 3-matic, geomagic, matlab, etc. The upper teeth three-dimensional model includes upper teeth and periodontal tissues thereof, etc., and the lower teeth three-dimensional model includes lower teeth and periodontal tissues thereof, etc.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: and constructing and obtaining a three-dimensional fusion model based on the jaw occlusion position three-dimensional model, the upper jaw tooth three-dimensional model and the lower jaw tooth three-dimensional model. Because the three-dimensional model of the occlusal site of the jaw can not accurately reflect the true structure of the tooth and the peripheral soft tissues thereof, and a large error exists, the three-dimensional model of the upper jaw and the three-dimensional model of the lower jaw are required to be combined with the three-dimensional model of the occlusal site of the jaw, so that a more accurate overall three-dimensional model of the jaw is obtained. In the case of fusion, it is often necessary to register at least three reference points, such as cuspids, premolars, molar cuspids, incisor nodules on crowns, etc., based on a plurality of reference points, such as at least three reference points, which may be tooth surface landmarks, for example, the cuspids, premolars, molar cuspids, etc., for example, to be fused to provide a more effective degree of accuracy.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: based on the external surface of the maxillary teeth, constructing and obtaining a seating area. The seating area is generally constructed based on the external surface of the maxillary tooth, for example, a seating area bonding surface which is bonded with the external surface of the maxillary tooth can be constructed based on the external surface of the maxillary tooth, the seating area bonding surface is generally tightly bonded with the external surface of the maxillary tooth, and the seating area bonding surface extends to the outer side of the bonding surface (namely, the direction of the seating area bonding surface opposite to the external surface of the maxillary tooth) according to the seating area bonding surface, so that the seating area is constructed and obtained, and the extending distance can be 2-3 mm. The distance of extension generally corresponds to the thickness of the seating area of the fixed guide plate for mandibular reconstruction, and generally, the distances of extension of the respective portions of the seating area may be substantially equal, so that the thickness of the resulting guide plate body is uniform.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: based on the outer surface of the mandibular ascending branch, a hole site region is constructed around the mandibular ascending branch fixation area, which hole site region extends from the leading edge of the mandibular ascending branch to the trailing edge of the mandibular ascending branch. The hole site area is generally constructed and obtained based on the outer side surface of the mandibular ascending branch, for example, a hole site area jointing surface can be constructed and obtained based on the outer side surface of the mandibular ascending branch, the hole site area jointing surface can extend from the front edge of the mandibular ascending branch to the rear edge of the mandibular ascending branch, the hole site area jointing surface is generally closely jointed with the outer side surface of the mandibular ascending branch and the corresponding part, and then extends to the outer side direction of the jointing surface (namely, the direction of the hole site area jointing surface is opposite to the three-dimensional model of the jaw occlusion position) according to the hole site area jointing surface, so that the hole site area is constructed and obtained, and the extending distance can be 2-3 mm. Since the mandibular ascending branch fixation area is generally located outside of the mandibular ascending branch and is located in the middle of the outside of the mandibular ascending branch and may extend to the mandibular angle of the outside of the mandibular ascending branch, the hole site area may generally extend on the side of the mandibular ascending branch adjacent to the mandibular incision, thereby forming a "figure" shape.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: based on mandibular notch of mandibular ascending branch, constructing hole site region buckling part. The hole site region fastening part is generally obtained based on the mandibular notch construction of the mandibular ascending branch, for example, the hole site region fastening surface may be further extended based on the mandibular notch outer side surface of the mandibular ascending branch, so as to obtain the fastening part fastening surface around the mandibular notch construction, the fastening part fastening surface generally extends from the mandibular notch outer side (i.e., the side on which the hole site region fastening surface is constructed on the mandibular ascending branch) to the inner side of the mandibular notch (i.e., the side on which the hole site region fastening surface is not constructed on the mandibular ascending branch), the fastening part fastening surface is generally tightly attached to the mandibular notch surface, and then extends to the fastening surface outer side direction (i.e., the direction in which the fastening part fastening surface is opposite to the three-dimensional model of the jaw bite position) according to the fastening part fastening surface, so as to construct and obtain the hole site region fastening part, and the extending distance may be 2-3 mm.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: and constructing connecting parts which are respectively connected with the hole site area and the position area and are positioned outside the hole site area and the position area. The connecting portion is typically connected to the hole site region and the site region, is typically located outside the hole site region and the site region (i.e. opposite to the direction of the three-dimensional model of the occlusal jaw), may typically extend along the outer side of the hole site region and/or the site region, and may have a length of 15-20 mm according to the extending direction. In a preferred embodiment of the invention, the connecting portion is cylindrical.
The construction method of the guide plate model for the maxillary tooth guided ascending and supporting reduction and fixation provided by the invention can comprise the following steps: and constructing a positioning part penetrating through the hole site region on the hole site region. The positioning parts extend to the inner side of the hole site area from the outer side of the hole site area, and can be uniformly distributed on the hole site area, and the positioning parts can be cylindrical holes with the diameter of 1.7-2.0 mm.
The second aspect of the invention provides a method for preparing a guide plate for maxillary guided elevating and resetting and fixing, comprising the following steps: according to the method for constructing the maxillary guide ascending branch resetting and fixing guide plate model provided by the first aspect of the invention, the maxillary guide ascending branch resetting and fixing guide plate model is constructed and obtained, and the maxillary guide ascending branch resetting and fixing guide plate is prepared. The method for preparing the maxillary guide lifting and resetting and fixing guide plate by constructing the maxillary guide lifting and resetting and fixing guide plate model according to the construction method of the maxillary guide lifting and fixing guide plate model is known to the person skilled in the art, for example, 3D printing and other methods can be adopted, and the used materials can be photosensitive resin and the like.
The third aspect of the invention provides a guide plate for guiding and lifting the upper jaw teeth, which can be obtained by constructing a model of the guide plate for guiding and lifting the upper jaw teeth provided by the first aspect of the invention or by preparing the guide plate for guiding and lifting the upper jaw teeth provided by the second aspect of the invention.
According to a fourth aspect of the invention, a guide plate for guiding the lifting branch to reset and fix the upper jaw teeth is provided, as shown in fig. 1, the guide plate comprises a positioning piece 1 for being attached to the upper jaw teeth and a hole site piece 3 for being attached to the outer side surface of the lifting branch of the lower jaw teeth, a lower jaw lifting branch fixing area accommodating opening 7 is formed in the hole site piece 3, the accommodating opening is opened from the middle part of the hole site piece 3 to the lower jaw angle direction, a buckling piece 4 for buckling the jaw notch is further arranged on the jaw notch side of the hole site piece 3, the positioning piece 1 is connected with the hole site piece 3 through a connecting piece 2, and a positioning hole 5 penetrating through the hole site piece 3 is formed in the hole site piece 3. The positioning piece can be tightly attached to the upper jaw teeth generally, the hole site piece can be attached to the outer side surface of the upper jaw branch, the upper jaw branch and the lower jaw branch can be connected through the connecting piece, the upper jaw branch can be conveniently positioned in operation without exposing a non-operation area, the relative position relation between the upper jaw teeth row and the upper jaw branch and the condyle process can be accurately determined, the containing port exists, the hole site piece extends from the front edge of the upper jaw branch to the lower jaw ethylene-shaped notch, and further extends from the lower jaw ethylene-shaped notch to the rear edge of the lower jaw branch, the hole site piece forms a shape like a Chinese character 'ji', and the lower jaw repair part can be conveniently connected with the lower jaw reserved part in operation.
In the guide plate for guiding the lifting support to reset and fix the maxillary teeth, the positioning piece 1 can be generally tightly attached to at least part of the maxillary teeth, and the dimension of the thickness direction (the direction perpendicular to the attaching surface of the maxillary teeth) of the positioning piece can be 2-3 mm, so that the positioning piece can be conveniently placed at an operation position in an operation.
In the guide plate for guiding the lifting support to reset and fix the maxillary teeth, the shape of the inner joint surface of the hole site piece 3 (namely, one side of the hole site piece 3 used for being jointed with the lifting support of the mandible) is generally matched with the shape of the outer side surface of the lifting support of the mandible, so that the hole site piece can be closely jointed with the outer side of at least part of the lifting support of the mandible, and the size of the hole site piece 3 in the thickness direction (the direction perpendicular to the joint surface of the lifting support of the mandible) can be 2-3 mm, so that the hole site piece can be conveniently placed at an operation part in operation. The positioning hole 5 may penetrate through the hole part 3, that is, may extend from the inner abutting surface of the hole part 3 to the other side, and one or more positioning holes 5, preferably a plurality of positioning holes 5 may be further provided on the hole part 3, so that the hole part 3 may be stably fixed. The positioning holes 5 can be uniformly distributed on the hole part 3, the positioning holes 5 can be cylindrical holes, and the diameter can be 1.8-2.2 mm, so that uniform stress can be applied.
In the guide plate for guiding the lifting branch to reset and fix the maxillary teeth, the connecting piece can extend along the outer side surface of the hole site piece 3 and/or the positioning piece 1, the length of the connecting piece can be 15-20 mm according to the extending direction, one end of the connecting piece can be connected with the positioning piece 1, and the other end of the connecting piece can be connected with one side of the hole site piece 3 close to the front edge of the lifting branch of the mandible. In a preferred embodiment of the invention, the connecting element is cylindrical, the diameter of which may be 4-6 mm.
In the guide plate for reposition and fixation of the maxillary guide ascending branch provided by the invention, the buckling piece 4 can be in a roundabout shape, so that the buckling piece can extend from the outer side of the mandibular incision (namely, one side of the mandibular ascending branch, which can be attached with the hole site piece 3) to the inner side of the mandibular incision (namely, the other side of the mandibular ascending branch opposite to the outer side of the mandibular ascending branch), and can be buckled with the mandibular incision. The dimension of the thickness direction of the fastener 4 (the direction perpendicular to the engaging surface of the fastener 4) may be 2 to 3mm, so that the fastener can be conveniently placed at the operation site during the operation to facilitate the tight engagement.
A fifth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of constructing a model of a guide plate for maxillary guided debranching and fixing provided in the first aspect of the present invention or the steps of the method of preparing a guide plate for maxillary guided debranching and fixing provided in the second aspect of the present invention.
Another aspect of the invention provides an apparatus comprising: the device comprises a processor and a memory, wherein the memory is used for storing a computer program, and the processor is used for executing the computer program stored in the memory, so that the device executes the steps of the method for constructing the maxillary guided ascending and descending and fixing guide plate model provided by the first aspect of the invention or the steps of the method for preparing the maxillary guided ascending and descending and fixing guide plate provided by the second aspect of the invention.
The construction method of the guide plate for the upper jaw guide lifting branch reset and fixation and the guide plate for the upper jaw guide lifting branch reset and fixation obtained by construction are convenient to position, a non-operation area is not required to be exposed additionally, the guide plate positioning area is fixed on the upper jaw teeth row of a patient, the hole position area is buckled on the affected side lifting branch, the relative position relationship between the upper jaw teeth row and the lifting branch and the condyle is transmitted by the connecting rod in the middle of the guide plate, and the lower jaw lifting branch and the condyle are accurately reset and fixed at the original positions during operation, so that the method has the characteristics of being minimally invasive, stable, simple, accurate and the like, and has good industrialization prospect.
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Example 1
1) Importing CT data of the head of a patient into medical image processing software Medraw, wherein the image technology information is as follows, and the read information is shown in figure 3;
data-
01. Layer thickness: 0.625000
02. Resolution ratio: 0.505559\0.505559
03. Number of lines: 512
04. Column number: 512
2) Three-dimensionally reconstructing patient head data, the results being shown in fig. 4;
3) Determining the mandible osteotomy range, and reserving a steel plate fixing area, wherein the result is shown in fig. 5;
4) Fusing and registering the patient upper jaw scanning data with CT reconstruction data, and the result is shown in figure 6;
5) The elevating repositioning and fixing guide plate is designed in software by using the maxillary tooth guide, and the result is shown in figure 7.
The lifting return and fixed guide plate model constructed and obtained according to the steps has the following specific parameters: the thickness of the guide plate is 2mm, the length of the connecting piece is 16.8mm, and the diameter of the connecting rod is 6mm. The length of the hole site area is 35.9mm, and the height is 26.8mm.
And according to the constructed model, lifting and resetting and fixing the guide plate are obtained through 3D printing of photosensitive resin.
The lifting branch reduction and fixation guide plate obtained through the construction is used for conducting segmental excision of the mandible, so that the lifting branch and the condyle of the mandible can be accurately reduced and fixed at the original position in the operation, and the postoperative occlusion relationship of a patient is well restored. Compared with the post-operation clinic and CT and the pre-operation, the condylar process position has no obvious change, and the joint dysfunction does not occur.
In summary, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utility value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. A construction method of a guide plate model for guiding rising branches to reset and fix of maxillary teeth comprises the following steps:
constructing and obtaining a three-dimensional fusion model based on a jaw three-dimensional model, a maxillary tooth three-dimensional model and a mandibular tooth three-dimensional model, wherein the jaw three-dimensional model comprises a mandibular ascending branch fixing area;
constructing and obtaining a positioning area based on the outer surface of the maxillary tooth;
constructing and obtaining a hole site area around the mandibular ascending branch fixing area based on the mandibular ascending branch outer side surface, wherein the hole site area extends from the front edge of the mandibular ascending branch to the rear edge of the mandibular ascending branch;
constructing a hole site area buckling part based on a mandibular sigmoid notch of a mandibular ascending branch;
and constructing connecting parts which are respectively connected with the hole site area and the position area and are positioned outside the hole site area and the position area.
2. The method of claim 1, wherein the three-dimensional model of the jaw bone comprises a maxilla and a mandible.
3. The method of claim 1, wherein the three-dimensional fusion model is fused based on at least 3 reference points selected from the group consisting of cuspids, premolars, molar cuspids, and incisor nodules on crowns.
4. The method of claim 1, wherein the thickness of the seating region is 2-3 mm and the thickness of the hole site region is 2-3 mm.
5. The construction method according to claim 1, wherein the length of the connection portion is 15 to 20mm.
6. The method of constructing as defined in claim 1, further comprising: and constructing a positioning part penetrating through the hole site region on the hole site region.
7. A method of preparing a guide plate for maxillary guided ascending and descending and fixation, the method comprising: a maxillary guided elevating and fixing guide plate model constructed and obtained according to the construction method of a maxillary guided elevating and fixing guide plate model as claimed in any one of claims 1-6, a maxillary guided elevating and fixing guide plate is prepared.
8. A guide plate for guiding rising branches to reset and fix of upper teeth, which is obtained by constructing a model of the guide plate for guiding rising branches to reset and fix of upper teeth according to any one of claims 1 to 6 or by preparing the guide plate for guiding rising branches to reset and fix of upper teeth according to claim 7.
9. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method of constructing a model of a maxillary guided abutment reset and fixation guide as claimed in any one of claims 1 to 6, or the steps of the method of preparing a maxillary guided abutment reset and fixation guide as claimed in claim 7.
10. A construction apparatus for a guide plate model for maxillary guided ascending and descending and fixing, comprising: a processor and a memory for storing a computer program for executing the computer program stored by the memory to cause the apparatus to perform the steps of the method of constructing a maxillary guided elevator reset and fixed guide model according to any one of claims 1 to 6 or the steps of the method of preparing a maxillary guided elevator reset and fixed guide according to claim 7.
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| CN205849501U (en) * | 2016-04-26 | 2017-01-04 | 中山大学孙逸仙纪念医院 | Guide the location-plate that the 3D of Jaw neoplasm excision prints |
| CN107680163B (en) * | 2017-09-30 | 2023-09-26 | 浙江工业大学 | Manufacturing method of personalized 3D optimization structure internal fixing plate and internal fixing plate |
| CN208492220U (en) * | 2017-10-26 | 2019-02-15 | 武汉大学 | Novel mandibular integration osteotomy guide plate |
| CN108577963A (en) * | 2018-05-23 | 2018-09-28 | 上海交通大学医学院附属第九人民医院 | Tooth-borne type alveolar ridge distractor guide plate arrangement and preparation method thereof |
| CN108720889A (en) * | 2018-06-20 | 2018-11-02 | 上海交通大学医学院附属第九人民医院 | Tooth-borne type Mandibular Rumas osteotomy and tractor resting guide |
| CN109288558A (en) * | 2018-11-27 | 2019-02-01 | 上海交通大学医学院附属第九人民医院 | Guide plate for the minimally invasive osteotomy of tooth maintenance |
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2019
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