CN113130082B - Construction method and device of base station positioner, storage medium and terminal - Google Patents
Construction method and device of base station positioner, storage medium and terminal Download PDFInfo
- Publication number
- CN113130082B CN113130082B CN202110420696.3A CN202110420696A CN113130082B CN 113130082 B CN113130082 B CN 113130082B CN 202110420696 A CN202110420696 A CN 202110420696A CN 113130082 B CN113130082 B CN 113130082B
- Authority
- CN
- China
- Prior art keywords
- points
- track
- curve
- track points
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010276 construction Methods 0.000 title claims description 26
- 238000000034 method Methods 0.000 claims abstract description 64
- 230000015654 memory Effects 0.000 claims description 29
- 238000006073 displacement reaction Methods 0.000 claims description 23
- 230000003993 interaction Effects 0.000 claims description 17
- 238000005070 sampling Methods 0.000 claims description 17
- 238000010408 sweeping Methods 0.000 claims description 14
- 230000002452 interceptive effect Effects 0.000 claims description 13
- 230000001131 transforming effect Effects 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 3
- 238000002513 implantation Methods 0.000 abstract description 17
- 238000007493 shaping process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000005291 magnetic effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011960 computer-aided design Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004053 dental implant Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
- G16H50/50—ICT 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
-
- 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
- A61C8/0089—Implanting tools or instruments
Abstract
The invention discloses a method and a device for constructing a base station positioner, a storage medium and a terminal, wherein the method comprises the following steps: obtaining an initial value point and a plurality of track points which are input by a user; updating the initial value points based on the track points and tangential directions of the track points to obtain model value points corresponding to the track points; generating a section curve and a semicircular curve based on the model value points corresponding to the track points; generating a base station positioner based on the cross-sectional curve and the semicircular curve. In the embodiment of the invention, the base station positioner generated by the invention can improve the accuracy of the implantation of the base station and ensure the safety of the implantation operation.
Description
Technical Field
The invention relates to the technical field of computer aided design, in particular to a method and a device for constructing a base station positioner, a storage medium and a terminal.
Background
In the dental implant process, the existing abutment implantation has the problems: 1. the combination position of the abutment and the implant is narrow, and a doctor is difficult to accurately place the abutment on the implant only by eyes and hands, and even the abutment can fall into the oral cavity of a patient in the placing process, so that the abutment can be swallowed. 2. The gum penetrating area at the bottom of the base is shaped, the shape of the gum penetrating area is matched with corresponding gums, and the positioning accuracy of doctors is difficult to meet the requirement only by eyes and hands.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a construction method, a device, a storage medium and a terminal of a base station positioner, which are used for improving the accuracy of base station implantation and ensuring the safety of implantation operation.
In order to solve at least one of the above technical problems, an embodiment of the present invention provides a method for constructing a base station positioner, where the method includes:
obtaining an initial value point and a plurality of track points which are input by a user;
updating the initial value points based on the track points and tangential directions of the track points to obtain model value points corresponding to the track points;
generating a section curve and a semicircular curve based on the model value points corresponding to the track points;
generating a base station positioner based on the cross-sectional curve and the semicircular curve.
Optionally, the method for constructing the initial value points includes:
obtaining the average size of teeth, and rotating around the origin of coordinates from the positive direction of the X axis in the anticlockwise direction until the negative direction of the X axis is reached by taking the origin of coordinates as the center of a circle under a standard two-dimensional Cartesian coordinate system based on the average size of the teeth;
collecting points on a plurality of circumferences at equal angles in the middle process of rotation to serve as initial value points;
the construction method of the track points comprises the following steps:
taking the tooth center point of each tooth position at the gum part of the abutment positioner to be constructed;
and projecting the tooth center point onto a plane flush with the tooth vertexes at the two ends, and taking the projection points as a plurality of track points.
Optionally, the updating the initial value points based on the tangential directions of the plurality of track points and the plurality of track points to obtain the model value points corresponding to the track points includes:
b spline interpolation processing is carried out on the basis of the plurality of track points, and a track point curve is generated;
calculating tangential directions of the track points on the track point curves to obtain tangential directions of the track points;
and carrying out displacement and rotation processing on the initial value points based on the track points and tangential directions of the track points to obtain the model value points corresponding to the track points.
Optionally, the displacing and rotating the initial value points based on the tangential directions of the plurality of track points and the plurality of track points to obtain model value points corresponding to the track points includes:
constructing a cross-sectional plane with the plurality of track points and tangential directions of the plurality of track points;
and transforming the initial value points to the cross-section plane, and performing displacement and rotation treatment on the cross-section plane, so that the initial value points are aligned with the track points to form the value points corresponding to the track points.
Optionally, the generating the section curve and the semicircle curve based on the model value points corresponding to the track points includes:
b spline interpolation processing is carried out based on the model value points corresponding to the track points, and a section curve is generated;
and constructing a semicircle in the direction perpendicular to the plane where the section curves are located and pointing to the outside by taking the section curves at the two ends as references and taking the connecting line between symmetrical points at the two ends of the semicircle as a radius, so as to form a semicircle curve.
Optionally, the generating a base station positioner based on the cross-sectional curve and the semicircle curve includes:
generating a skin curved surface based on the section curve by a mask method;
sweeping the skin curved surface based on a double-track sweeping method to generate the middle part of the base station positioner;
sampling the semicircular curve according to preset density, and connecting the samples according to a preset topological relation to generate two end parts of the base station positioner;
and splicing the middle part of the base station positioner and the two end parts of the base station positioner to generate the base station positioner.
Optionally, the method further comprises:
judging whether the abutment locator is matched with the dental model or not;
moving an interaction control point of the abutment locator when the abutment locator is not matched with the dental model;
updating the track points and the model value points corresponding to the track points based on a preset binding relation when the interactive control points are moved;
generating an updated abutment locator based on the updated track points and the model value points corresponding to the updated track points until the updated abutment locator is matched with the dental model;
the preset binding relationship is set based on the interaction control point, the track point and a model value point corresponding to the track point;
the interaction control point is obtained by calculating the positions of the track points and the model value points corresponding to the track points.
In addition, the embodiment of the invention also provides a device for constructing the base station positioner, which comprises:
the obtaining module is as follows: the method comprises the steps of obtaining an initial value point and a plurality of track points which are input by a user;
a first updating module: the model value points are used for updating the initial model value points based on the tangential directions of the track points and the track points to obtain model value points corresponding to the track points;
and a curve generation module: generating a section curve and a semicircular curve based on the model value points corresponding to the track points;
a base station positioner generation module: for generating a base station locator based on the cross-sectional curve and the semi-circular curve.
In addition, the embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the construction method according to any one of the above.
In addition, the embodiment of the invention also provides a computer equipment terminal, which comprises:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to: a construction method according to any one of the preceding claims.
In the embodiment of the invention, a default positioner is generated in the tooth implantation design by the method of the invention, and the interaction shaping is carried out to construct the abutment positioner matched with the dental model of the patient, and the abutment positioner can effectively improve the accuracy of abutment implantation and ensure the safety of implantation operation.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method of constructing a base station positioner in an embodiment of the invention;
FIG. 2 is a schematic structural view of a construction apparatus of a base station positioner according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal of a computer device in an embodiment of the present invention;
FIG. 4 is a schematic view of a shaping curve of a base station positioner in an embodiment of the present invention;
FIG. 5 is a schematic diagram showing the initial structural components of a base station positioner in an embodiment of the present invention;
fig. 6 is a schematic structural view of a dental model-matching abutment locator according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for constructing a base station positioner according to an embodiment of the invention.
As shown in fig. 1, a method for constructing a base station positioner includes:
s11: obtaining an initial value point and a plurality of track points which are input by a user;
in the implementation process of the invention, the construction method of the initial value point comprises the following steps: obtaining the average size of teeth, and rotating around the origin of coordinates from the positive direction of the X axis in the anticlockwise direction until the negative direction of the X axis is reached by taking the origin of coordinates as the center of a circle under a standard two-dimensional Cartesian coordinate system based on the average size of the teeth; collecting points on a plurality of circumferences at equal angles in the middle process of rotation to serve as initial value points; the construction method of the track points comprises the following steps: taking the tooth center point of each tooth position at the gum part of the abutment positioner to be constructed; and projecting the tooth center point onto a plane flush with the tooth vertexes at the two ends, and taking the projection points as a plurality of track points.
Specifically, the initial value points are according to the average size of the teeth, namely, after the average size of the teeth is obtained, points on a plurality of circumferences are collected as initial value points in the middle process at a medium angle by taking the origin of coordinates as the center of a circle and rotating around the origin of coordinates in the anticlockwise direction from the positive direction of the X axis to the negative direction of the X axis under a standard two-dimensional Cartesian coordinate system; then, taking the tooth center points of each tooth position (the center points of holes formed by the possible missing of part of teeth) at the gum part of the preparation construction positioner, and projecting the center points onto a plane flush with the vertexes of the teeth at two ends, wherein the projection points are taken as a plurality of track points; and then taking the initial value points and the track points as input, and obtaining the initial value points and the track points input by the user.
S12: updating the initial value points based on the track points and tangential directions of the track points to obtain model value points corresponding to the track points;
in the implementation process of the present invention, the updating the initial model value point based on the tangential directions of the plurality of track points and the plurality of track points to obtain the model value point corresponding to the track point includes: b spline interpolation processing is carried out on the basis of the plurality of track points, and a track point curve is generated; calculating tangential directions of the track points on the track point curves to obtain tangential directions of the track points; and carrying out displacement and rotation processing on the initial value points based on the track points and tangential directions of the track points to obtain the model value points corresponding to the track points.
Further, the displacement and rotation processing is performed on the initial value points based on the tangential directions of the plurality of track points and the plurality of track points to obtain model value points corresponding to the track points, including: constructing a cross-sectional plane with the plurality of track points and tangential directions of the plurality of track points; and transforming the initial value points to the cross-section plane, and performing displacement and rotation treatment on the cross-section plane, so that the initial value points are aligned with the track points to form the value points corresponding to the track points.
Specifically, as shown in fig. 4, a track curve is generated by track points, a tangential direction of the track points on the track curve is calculated, and then displacement and rotation processing are carried out on initial value points according to the track points and the tangential direction to obtain model value points corresponding to the track points, wherein the model value points corresponding to the track points are required to meet that the normal direction of a plane of a section curve corresponding to the new value points is the same as the tangential direction of the track points; therefore, B spline interpolation processing is needed to be performed according to a plurality of track points, then a track point curve is formed, and then tangential directions of the track points on the track point curve are needed to be calculated, so that tangential directions of the track points are obtained; and carrying out displacement and rotation processing on the initial model value points according to the tangential directions of the track points and the track points to obtain the model value points corresponding to the track points. The method comprises the steps of uniformly sampling a plurality of points on a track curve, calculating tangential directions at the points, taking the sampling points and the tangential directions as plane normal vector construction planes, namely a cross-section plane, transforming initial shape value points (semicircular) to the cross-section plane, aligning the tops of the initial shape value points with the sampling points, and obtaining the shape value points corresponding to the track points, wherein the shape value points corresponding to the track points are n groups of shape value points.
S13: generating a section curve and a semicircular curve based on the model value points corresponding to the track points;
in the implementation process of the invention, the generating the section curve and the semicircle curve based on the model value points corresponding to the track points comprises the following steps: b spline interpolation processing is carried out based on the model value points corresponding to the track points, and a section curve is generated; and constructing a semicircle in the direction perpendicular to the plane where the section curves are located and pointing to the outside by taking the section curves at the two ends as references and taking the connecting line between symmetrical points at the two ends of the semicircle as a radius, so as to form a semicircle curve.
Specifically, the model value points are a group of three-dimensional coordinate points for generating a section curve and are used for controlling the width and the thickness of the base station positioner; the section curve is obtained by performing B spline interpolation processing according to a model value point corresponding to a track point, after the section curve is obtained, a semicircle curve is needed to be obtained, the semicircle curve is formed by taking the section curve at two ends as a reference and taking a connecting line between symmetrical points at two ends of the semicircle as a radius, and constructing a semicircle in the direction perpendicular to the plane of the section curve and pointing to the outside; determining two ends of a section curve according to the shape value points corresponding to the track points, wherein n groups of shape value points corresponding to the track points exist, and recording the i-th group of shape value points as Ti, wherein T1, T2, T3 are the n groups of shape value points, and T1 and Tn are the shape value points at the two ends; the profile points at the two ends form a section curve at the two ends.
S14: generating a base station positioner based on the cross-sectional curve and the semicircular curve;
in the implementation process of the invention, the generating the abutment locator based on the section curve and the semicircle curve comprises the following steps: generating a skin curved surface based on the section curve by a mask method; sweeping the skin curved surface based on a double-track sweeping method to generate the middle part of the base station positioner; sampling the semicircular curve according to preset density, and connecting the samples according to a preset topological relation to generate two end parts of the base station positioner; and splicing the middle part of the base station positioner and the two end parts of the base station positioner to generate the base station positioner.
Specifically, as shown in fig. 5, the step involves the generation of grids, specifically, a skin curved surface is generated according to a section curve, and then gridding treatment is performed; the gridding is divided into a middle part and two ends, the middle part is generated by adopting a double-track scanning method, curves used by a single double-track scanning are two curves with an adjacent relation in a skin curved surface, the curves are sampled according to proper density and are sequentially connected, and then the results of multiple double-track scanning are spliced together to form the middle part of the locator; generating two ends based on a semicircular curve, sampling the curve corresponding to the semicircular curve according to proper density, and connecting sampling points according to a reasonable topological relation; namely, generating a skin curved surface from the section curve according to a mask method; then, sweeping the curved surface of the skin according to a double-track sweeping method to generate the middle part of the base station positioner; then sampling the semicircular curve according to preset density, and connecting the samples according to a preset topological relation to generate two end parts of the base station positioner; and finally, splicing according to the middle part of the base station positioner and the two end parts of the base station positioner, thereby obtaining the complete base station positioner.
S15: judging whether the abutment locator is matched with the dental model or not;
in the implementation process of the invention, whether the abutment locator is matched with the dental model or not needs to be judged, when the abutment locator is not matched with the dental model, the abutment locator needs to be adjusted, and when the abutment locator is matched with the dental model, the abutment locator can be directly obtained.
S16: obtaining abutment positioners matched with dental models
In the implementation process of the invention, when matched, the abutment locator matched with the dental model can be directly obtained without adjustment.
S17: moving an interaction control point of the abutment locator when the abutment locator is not matched with the dental model;
in the implementation process of the invention, when the abutment locator is not matched with the dental model, the interaction control point of the abutment controller needs to be moved so as to realize adjustment of the abutment controller.
S18: updating the track points and the model value points corresponding to the track points based on a preset binding relation when the interactive control points are moved;
in the implementation process of the invention, the preset binding relationship is set based on the interaction control point, the track point and the model value point corresponding to the track point; the interaction control point is obtained by calculating the positions of the track points and the model value points corresponding to the track points.
Specifically, as shown in fig. 6, the interactive control point is calculated according to the positions of the track point and the model value point corresponding to the track point, and a binding relationship exists among the interactive control point, the track point and the model value point corresponding to the track point, so that when the interactive control point is changed through the binding relationship, the model value point corresponding to the track point is updated through the binding relationship; the interactive control point is used for controlling the movement of the model value point/track point, the control point generates a displacement vector before and after the movement, the displacement of the model value point/track point bound with the control point is carried out to different degrees according to the distance, the displacement direction is the same as the movement direction of the control point, and the displacement distance is inversely proportional to the bound distance of the control point; after updating, returning to S13, re-processing, generating an updated base station positioner again, and continuously judging whether the updated base station positioner is matched with the dental model; repeating until the updated abutment locator matches the dental model.
In the embodiment of the invention, a default positioner is generated in the tooth implantation design by the method of the invention, and the interaction shaping is carried out to construct the abutment positioner matched with the dental model of the patient, and the abutment positioner can effectively improve the accuracy of abutment implantation and ensure the safety of implantation operation.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of a construction apparatus of a base station positioner according to an embodiment of the present invention.
As shown in fig. 2, a device for constructing a base station positioner, the device comprising:
obtaining module 21: the method comprises the steps of obtaining an initial value point and a plurality of track points which are input by a user;
in the implementation process of the invention, the construction method of the initial value point comprises the following steps: obtaining the average size of teeth, and rotating around the origin of coordinates from the positive direction of the X axis in the anticlockwise direction until the negative direction of the X axis is reached by taking the origin of coordinates as the center of a circle under a standard two-dimensional Cartesian coordinate system based on the average size of the teeth; collecting points on a plurality of circumferences at equal angles in the middle process of rotation to serve as initial value points; the construction method of the track points comprises the following steps: taking the tooth center point of each tooth position at the gum part of the abutment positioner to be constructed; and projecting the tooth center point onto a plane flush with the tooth vertexes at the two ends, and taking the projection points as a plurality of track points.
Specifically, the initial value points are according to the average size of the teeth, namely, after the average size of the teeth is obtained, points on a plurality of circumferences are collected as initial value points in the middle process at a medium angle by taking the origin of coordinates as the center of a circle and rotating around the origin of coordinates in the anticlockwise direction from the positive direction of the X axis to the negative direction of the X axis under a standard two-dimensional Cartesian coordinate system; then, taking the tooth center points of each tooth position (the center points of holes formed by the possible missing of part of teeth) at the gum part of the preparation construction positioner, and projecting the center points onto a plane flush with the vertexes of the teeth at two ends, wherein the projection points are taken as a plurality of track points; and then taking the initial value points and the track points as input, and obtaining the initial value points and the track points input by the user.
The first update module 22: the model value points are used for updating the initial model value points based on the tangential directions of the track points and the track points to obtain model value points corresponding to the track points;
in the implementation process of the present invention, the updating the initial model value point based on the tangential directions of the plurality of track points and the plurality of track points to obtain the model value point corresponding to the track point includes: b spline interpolation processing is carried out on the basis of the plurality of track points, and a track point curve is generated; calculating tangential directions of the track points on the track point curves to obtain tangential directions of the track points; and carrying out displacement and rotation processing on the initial value points based on the track points and tangential directions of the track points to obtain the model value points corresponding to the track points.
Further, the displacement and rotation processing is performed on the initial value points based on the tangential directions of the plurality of track points and the plurality of track points to obtain model value points corresponding to the track points, including: constructing a cross-sectional plane with the plurality of track points and tangential directions of the plurality of track points; and transforming the initial value points to the cross-section plane, and performing displacement and rotation treatment on the cross-section plane, so that the initial value points are aligned with the track points to form the value points corresponding to the track points.
Specifically, as shown in fig. 4, a track curve is generated by track points, a tangential direction of the track points on the track curve is calculated, and then displacement and rotation processing are carried out on initial value points according to the track points and the tangential direction to obtain model value points corresponding to the track points, wherein the model value points corresponding to the track points are required to meet that the normal direction of a plane of a section curve corresponding to the new value points is the same as the tangential direction of the track points; therefore, B spline interpolation processing is needed to be performed according to a plurality of track points, then a track point curve is formed, and then tangential directions of the track points on the track point curve are needed to be calculated, so that tangential directions of the track points are obtained; and carrying out displacement and rotation processing on the initial model value points according to the tangential directions of the track points and the track points to obtain the model value points corresponding to the track points. The method comprises the steps of uniformly sampling a plurality of points on a track curve, calculating tangential directions at the points, taking the sampling points and the tangential directions as plane normal vector construction planes, namely a cross-section plane, transforming initial shape value points (semicircular) to the cross-section plane, aligning the tops of the initial shape value points with the sampling points, and obtaining the shape value points corresponding to the track points, wherein the shape value points corresponding to the track points are n groups of shape value points.
Curve generation module 23: generating a section curve and a semicircular curve based on the model value points corresponding to the track points;
in the implementation process of the invention, the generating the section curve and the semicircle curve based on the model value points corresponding to the track points comprises the following steps: b spline interpolation processing is carried out based on the model value points corresponding to the track points, and a section curve is generated; and constructing a semicircle in the direction perpendicular to the plane where the section curves are located and pointing to the outside by taking the section curves at the two ends as references and taking the connecting line between symmetrical points at the two ends of the semicircle as a radius, so as to form a semicircle curve.
Specifically, the model value points are a group of three-dimensional coordinate points for generating a section curve and are used for controlling the width and the thickness of the base station positioner; the section curve is obtained by performing B spline interpolation processing according to a model value point corresponding to a track point, after the section curve is obtained, a semicircle curve is needed to be obtained, the semicircle curve is formed by taking the section curve at two ends as a reference and taking a connecting line between symmetrical points at two ends of the semicircle as a radius, and constructing a semicircle in the direction perpendicular to the plane of the section curve and pointing to the outside; determining two ends of a section curve according to the shape value points corresponding to the track points, wherein n groups of shape value points corresponding to the track points exist, and recording the i-th group of shape value points as Ti, wherein T1, T2, T3 are the n groups of shape value points, and T1 and Tn are the shape value points at the two ends; the profile points at the two ends form a section curve at the two ends.
Base station positioner generation module 24: generating a base station positioner based on the cross-sectional curve and the semicircular curve;
in the implementation process of the invention, the generating the abutment locator based on the section curve and the semicircle curve comprises the following steps: generating a skin curved surface based on the section curve by a mask method; sweeping the skin curved surface based on a double-track sweeping method to generate the middle part of the base station positioner; sampling the semicircular curve according to preset density, and connecting the samples according to a preset topological relation to generate two end parts of the base station positioner; and splicing the middle part of the base station positioner and the two end parts of the base station positioner to generate the base station positioner.
Specifically, as shown in fig. 5, the step involves the generation of grids, specifically, a skin curved surface is generated according to a section curve, and then gridding treatment is performed; the gridding is divided into a middle part and two ends, the middle part is generated by adopting a double-track scanning method, curves used by a single double-track scanning are two curves with an adjacent relation in a skin curved surface, the curves are sampled according to proper density and are sequentially connected, and then the results of multiple double-track scanning are spliced together to form the middle part of the locator; generating two ends based on a semicircular curve, sampling the curve corresponding to the semicircular curve according to proper density, and connecting sampling points according to a reasonable topological relation; namely, generating a skin curved surface from the section curve according to a mask method; then, sweeping the curved surface of the skin according to a double-track sweeping method to generate the middle part of the base station positioner; then sampling the semicircular curve according to preset density, and connecting the samples according to a preset topological relation to generate two end parts of the base station positioner; and finally, splicing according to the middle part of the base station positioner and the two end parts of the base station positioner, thereby obtaining the complete base station positioner.
The judgment module 25: the abutment locator is used for judging whether the abutment locator is matched with the dental model or not;
in the implementation process of the invention, whether the abutment locator is matched with the dental model or not needs to be judged, when the abutment locator is not matched with the dental model, the abutment locator needs to be adjusted, and when the abutment locator is matched with the dental model, the abutment locator can be directly obtained; when matched, the abutment locator matched with the dental model can be directly obtained without adjustment. .
The movement module 26: an interactive control point for moving the abutment locator when the abutment locator does not match the dental model;
in the implementation process of the invention, when the abutment locator is not matched with the dental model, the interaction control point of the abutment controller needs to be moved so as to realize adjustment of the abutment controller.
The second keep-alive module 27: and updating the track point and the model value point corresponding to the track point based on a preset binding relation when the interactive control point is moved.
In the implementation process of the invention, the preset binding relationship is set based on the interaction control point, the track point and the model value point corresponding to the track point; the interaction control point is obtained by calculating the positions of the track points and the model value points corresponding to the track points.
Specifically, as shown in fig. 6, the interactive control point is calculated according to the positions of the track point and the model value point corresponding to the track point, and a binding relationship exists among the interactive control point, the track point and the model value point corresponding to the track point, so that when the interactive control point is changed through the binding relationship, the model value point corresponding to the track point is updated through the binding relationship; the interactive control point is used for controlling the movement of the model value point/track point, the control point generates a displacement vector before and after the movement, the displacement of the model value point/track point bound with the control point is carried out to different degrees according to the distance, the displacement direction is the same as the movement direction of the control point, and the displacement distance is inversely proportional to the bound distance of the control point; after updating, returning to S13, re-processing, generating an updated base station positioner again, and continuously judging whether the updated base station positioner is matched with the dental model; repeating until the updated abutment locator matches the dental model.
In the embodiment of the invention, a default positioner is generated in the tooth implantation design by the method of the invention, and the interaction shaping is carried out to construct the abutment positioner matched with the dental model of the patient, and the abutment positioner can effectively improve the accuracy of abutment implantation and ensure the safety of implantation operation.
An embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program that, when executed by a processor, implements the construction method of any one of the above embodiments. The computer readable storage medium includes, but is not limited to, any type of disk including floppy disks, hard disks, optical disks, CD-ROMs, and magneto-optical disks, ROMs (Read-Only memories), RAMs (Random AcceSS Memory, random access memories), EPROMs (EraSable Programmable Read-Only memories), EEPROMs (Electrically EraSableProgrammableRead-Only memories), flash memories, magnetic cards, or optical cards. That is, a storage device includes any medium that stores or transmits information in a form readable by a device (e.g., computer, cell phone), and may be read-only memory, magnetic or optical disk, etc.
The embodiment of the invention also provides a computer application program which runs on a computer and is used for executing the construction method of any one of the embodiments.
In addition, fig. 3 is a schematic structural diagram of a terminal of a computer device in an embodiment of the present invention.
The embodiment of the invention also provides a computer equipment terminal, as shown in fig. 3. The computer device terminal includes a processor 302, a memory 303, an input unit 304, a display unit 305, and the like. It will be appreciated by those skilled in the art that the device architecture shown in fig. 3 does not constitute a limitation of all devices, and may include more or fewer components than shown, or may combine certain components. The memory 303 may be used to store an application 301 and various functional modules, and the processor 302 runs the application 301 stored in the memory 303, thereby performing various functional applications of the device and data processing. The memory may be internal memory or external memory, or include both internal memory and external memory. The internal memory may include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), flash memory, or random access memory. The external memory may include a hard disk, floppy disk, ZIP disk, U-disk, tape, etc. The disclosed memory includes, but is not limited to, these types of memory. The memory disclosed herein is by way of example only and not by way of limitation.
The input unit 304 is used for receiving input of a signal and receiving keywords input by a user. The input unit 304 may include a touch panel and other input devices. The touch panel may collect touch operations on or near the user (e.g., the user's operation on or near the touch panel using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a preset program; other input devices may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., play control keys, switch keys, etc.), a trackball, mouse, joystick, etc. The display unit 305 may be used to display information input by a user or information provided to the user and various menus of the terminal device. The display unit 305 may take the form of a liquid crystal display, an organic light emitting diode, or the like. The processor 302 is a control center of the terminal device, connects various parts of the entire device using various interfaces and lines, performs various functions and processes data by running or executing software programs and/or modules stored in the memory 302, and invoking data stored in the memory.
As one embodiment, the computer device terminal includes: the system comprises one or more processors 302, a memory 303, one or more application programs 301, wherein the one or more application programs 301 are stored in the memory 303 and configured to be executed by the one or more processors 302, and the one or more application programs 301 are configured to perform the construction method of any of the above embodiments.
In the embodiment of the invention, a default positioner is generated in the tooth implantation design by the method of the invention, and the interaction shaping is carried out to construct the abutment positioner matched with the dental model of the patient, and the abutment positioner can effectively improve the accuracy of abutment implantation and ensure the safety of implantation operation.
In addition, the method, the device, the storage medium and the terminal for constructing the base station positioner provided by the embodiment of the invention are described in detail, and specific examples are adopted to illustrate the principle and the implementation of the invention, and the description of the above embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.
Claims (8)
1. A method of constructing a base station positioner, the method comprising:
obtaining an initial value point and a plurality of track points which are input by a user;
updating the initial value points based on the track points and tangential directions of the track points to obtain model value points corresponding to the track points;
generating a section curve and a semicircular curve based on the model value points corresponding to the track points;
generating a base station positioner based on the cross-sectional curve and the semicircular curve;
the generating a section curve and a semicircle curve based on the model value points corresponding to the track points comprises the following steps:
b spline interpolation processing is carried out on the basis of the model value points corresponding to the track points, and a section curve is generated;
constructing a semicircle in the direction perpendicular to the plane of the section curve and pointing to the outside by taking the section curve at the two ends as a reference and taking the connecting line between symmetrical points at the two ends of the semicircle as a radius, so as to form a semicircle curve;
the generating a base station positioner based on the cross-sectional curve and the semicircular curve includes:
generating a skin curved surface based on the section curve by a mask method;
sweeping the skin curved surface based on a double-track sweeping method to generate the middle part of the base station positioner;
sampling the semicircular curve according to preset density, and connecting the samples according to a preset topological relation to generate two end parts of the base station positioner;
and splicing the middle part of the base station positioner and the two end parts of the base station positioner to generate the base station positioner.
2. The construction method according to claim 1, wherein the construction method of the initial value point includes:
obtaining the average size of teeth, and rotating around the origin of coordinates from the positive direction of the X axis in the anticlockwise direction until the negative direction of the X axis is reached by taking the origin of coordinates as the center of a circle under a standard two-dimensional Cartesian coordinate system based on the average size of the teeth;
collecting points on a plurality of circumferences at equal angles in the middle process of rotation to serve as initial value points;
the construction method of the track points comprises the following steps:
taking the tooth center point of each tooth position at the gum part of the abutment positioner to be constructed;
and projecting the tooth center point onto a plane flush with the tooth vertexes at the two ends, and taking the projection points as a plurality of track points.
3. The construction method according to claim 1, wherein the updating the initial model value points based on the plurality of track points and the tangential direction of the plurality of track points to obtain model value points corresponding to the track points comprises:
b spline interpolation processing is carried out on the basis of the plurality of track points, and a track point curve is generated;
calculating tangential directions of the track points on the track point curves to obtain tangential directions of the track points;
and carrying out displacement and rotation processing on the initial value points based on the track points and tangential directions of the track points to obtain the model value points corresponding to the track points.
4. A construction method according to claim 3, wherein said performing displacement and rotation processing on the initial shape value points based on the plurality of track points and tangential directions of the plurality of track points to obtain shape value points corresponding to the track points comprises:
constructing a cross-sectional plane with the plurality of track points and tangential directions of the plurality of track points;
and transforming the initial value points to the cross-section plane, and performing displacement and rotation treatment on the cross-section plane, so that the initial value points are aligned with the track points to form the value points corresponding to the track points.
5. The method of claim 1, further comprising:
judging whether the abutment locator is matched with the dental model or not;
moving an interaction control point of the abutment locator when the abutment locator is not matched with the dental model;
updating the track points and the model value points corresponding to the track points based on a preset binding relation when the interactive control points are moved;
returning to the step of generating an updated abutment locator based on the updated track points and the model value points corresponding to the updated track points until the updated abutment locator is matched with the dental model;
the preset binding relationship is set based on the interaction control point, the track point and a model value point corresponding to the track point;
the interaction control point is obtained by calculating the positions of the track points and the model value points corresponding to the track points.
6. A device for constructing a base station positioner, the device comprising:
the obtaining module is as follows: the method comprises the steps of obtaining an initial value point and a plurality of track points which are input by a user;
a first updating module: the model value points are used for updating the initial model value points based on the tangential directions of the track points and the track points to obtain model value points corresponding to the track points;
and a curve generation module: generating a section curve and a semicircular curve based on the model value points corresponding to the track points;
a base station positioner generation module: generating a base station positioner based on the cross-sectional curve and the semicircular curve;
the generating a section curve and a semicircle curve based on the model value points corresponding to the track points comprises the following steps:
b spline interpolation processing is carried out on the basis of the model value points corresponding to the track points, and a section curve is generated;
constructing a semicircle in the direction perpendicular to the plane of the section curve and pointing to the outside by taking the section curve at the two ends as a reference and taking the connecting line between symmetrical points at the two ends of the semicircle as a radius, so as to form a semicircle curve;
the generating a base station positioner based on the cross-sectional curve and the semicircular curve includes:
generating a skin curved surface based on the section curve by a mask method;
sweeping the skin curved surface based on a double-track sweeping method to generate the middle part of the base station positioner;
sampling the semicircular curve according to preset density, and connecting the samples according to a preset topological relation to generate two end parts of the base station positioner;
and splicing the middle part of the base station positioner and the two end parts of the base station positioner to generate the base station positioner.
7. 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 construction method according to any one of claims 1 to 5.
8. A computer device terminal, comprising:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more applications configured to: construction method according to any one of claims 1 to 5 is performed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420696.3A CN113130082B (en) | 2021-04-19 | 2021-04-19 | Construction method and device of base station positioner, storage medium and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110420696.3A CN113130082B (en) | 2021-04-19 | 2021-04-19 | Construction method and device of base station positioner, storage medium and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113130082A CN113130082A (en) | 2021-07-16 |
| CN113130082B true CN113130082B (en) | 2024-03-19 |
Family
ID=76778177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110420696.3A Active CN113130082B (en) | 2021-04-19 | 2021-04-19 | Construction method and device of base station positioner, storage medium and terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113130082B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2580374A1 (en) * | 2004-09-14 | 2006-03-23 | Oratio B.V. | Method of manufacturing and installing a ceramic dental implant with an aesthetic implant abutment |
| JP2012179370A (en) * | 2000-04-19 | 2012-09-20 | Orametrix Inc | Interactive orthodontic care system based on intra-oral scanning of teeth |
| EP3069681A1 (en) * | 2015-03-19 | 2016-09-21 | Drs. Bettens - De Pooter BVBA | Surgical guiding tool, method and kit for placing dental implants |
| WO2019202113A1 (en) * | 2018-04-20 | 2019-10-24 | Valoc Ag | Dental restoration, method of producing it, computer program and method of restoring a tooth |
| CN110584811A (en) * | 2019-09-24 | 2019-12-20 | 成都登特牙科技术开发有限公司 | Dental implant abutment locator and 3D printing manufacturing method and mold taking method thereof |
| CN111524065A (en) * | 2020-03-12 | 2020-08-11 | 浙江工业大学 | Dental crown-based automatic generation method for individual implant abutment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200918025A (en) * | 2007-10-25 | 2009-05-01 | Pou Yuen Technology Co Ltd | Design method for digital abutment tooth of digital dental implant technique |
-
2021
- 2021-04-19 CN CN202110420696.3A patent/CN113130082B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012179370A (en) * | 2000-04-19 | 2012-09-20 | Orametrix Inc | Interactive orthodontic care system based on intra-oral scanning of teeth |
| CA2580374A1 (en) * | 2004-09-14 | 2006-03-23 | Oratio B.V. | Method of manufacturing and installing a ceramic dental implant with an aesthetic implant abutment |
| EP3069681A1 (en) * | 2015-03-19 | 2016-09-21 | Drs. Bettens - De Pooter BVBA | Surgical guiding tool, method and kit for placing dental implants |
| WO2019202113A1 (en) * | 2018-04-20 | 2019-10-24 | Valoc Ag | Dental restoration, method of producing it, computer program and method of restoring a tooth |
| EP3781077A1 (en) * | 2018-04-20 | 2021-02-24 | Valoc AG | Dental restoration, method of producing it, computer program and method of restoring a tooth |
| CN110584811A (en) * | 2019-09-24 | 2019-12-20 | 成都登特牙科技术开发有限公司 | Dental implant abutment locator and 3D printing manufacturing method and mold taking method thereof |
| CN111524065A (en) * | 2020-03-12 | 2020-08-11 | 浙江工业大学 | Dental crown-based automatic generation method for individual implant abutment |
Non-Patent Citations (5)
| Title |
|---|
| Knee prosthesis;Tornier, Alain;《Official Gazette of the United States Patent and Trademark Office Patents》;20030624;第1271卷(第4期);全文 * |
| 下颌运动轨迹描记在无牙颌颌位记录中的应用;佘文;谢俊良;翁维民;;临床口腔医学杂志;20180120(第01期);全文 * |
| 基于B样条自由变形的个性化基台设计技术研究;谢鸟龙;《中国优秀硕士学位论文全文数据库信息科技辑》;20140615(第6期);I138-1087 * |
| 数字化全口义齿技术的发展和临床应用;薛文利;李晓捷;;中国组织工程研究;20170918(第26期);全文 * |
| 数字化口腔种植关键基础技术研究;吴婷;《中国博士学位论文全文数据库 信息科技辑》;20131015(第10期);I138-55 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113130082A (en) | 2021-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3612132B1 (en) | Method and system for the fabrication of dental appliances | |
| US8858227B2 (en) | System and method for positioning teeth | |
| WO2021078064A1 (en) | Ultrasonic scanning track planning method and apparatus, and storage medium and computer device | |
| CA2713692C (en) | Method and system for optimising dental aligner geometry | |
| US7215803B2 (en) | Method and apparatus for interactive remote viewing and collaboration of dental images | |
| CN112470233B (en) | Method and system for dynamic adjustment of a model | |
| JPH09506815A (en) | Method and device for a product intended to be placed in the human body, and scanning device for a model of the product | |
| KR20190063718A (en) | METHOD AND SYSTEM FOR GENERATING three-dimensional oral model | |
| CN109938842A (en) | Facial surgical placement air navigation aid and device | |
| CN112307876A (en) | Joint point detection method and device | |
| CN112790879A (en) | Tooth axis coordinate system construction method and system of tooth model | |
| CN113130082B (en) | Construction method and device of base station positioner, storage medium and terminal | |
| CN113524201B (en) | Active adjusting method and device for pose of mechanical arm, mechanical arm and readable storage medium | |
| CN112598784B (en) | Method and device for adjusting contour scanning result, electronic equipment and storage medium | |
| CN115424701B (en) | Bone surface follow-up technology for optimal path planning | |
| CN109875702B (en) | Method for establishing motion model of arch wire for orthodontics by bending hands | |
| CN114559432B (en) | Automatic positioning and path-finding method and device for surgical mechanical arm, robot and storage medium | |
| CN115847449A (en) | Intelligent massage method, device and equipment based on path planning and storage medium | |
| CN111476905B (en) | Robot-assisted tooth preparation simulation system based on augmented reality | |
| US20230087800A1 (en) | Automated tooth administration in a dental restoration workflow | |
| CN108415571A (en) | A kind of somatosensory device implementation method moving caused data analysis based on thumb | |
| CN106600531A (en) | Handheld scanner and handheld scanner point cloud splicing method and device | |
| Sato et al. | 3D freeform design: interactive shape deformations by the use of CyberGlove | |
| CN116276984A (en) | Dental mouthpiece cutting method and device | |
| CN115830287A (en) | Tooth point cloud fusion method, equipment and medium based on laser oral scanning and CBCT reconstruction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |