KR101413222B1 - An image matching data creation method for orthodontics and remote mock treatment method and providing the information for orthodontics device using the same - Google Patents

Abstract

The present invention relates to a method of generating image matching information for digital tooth calibration, a remote simulation treatment method using the same, and a manufacturing information providing method of a dental orthodontic apparatus, and more particularly, So that correct tooth correction can be performed in performing the digital orthodontic treatment.
In addition, the present invention allows the local medical terminal used by the orthodontic dentist in each area to interlock with the central medical server so that effective simulation treatment and orthodontic appliance can be produced in each region.

Description

[0001] The present invention relates to a method of generating image matching information for digital tooth correction, a remote simulation treatment method using the same, and a manufacturing information providing method of the orthodontic appliance for orthodontics }

The present invention relates to a method of generating image matching information for digital tooth calibration, a remote simulation treatment method using the same, and a manufacturing information providing method of a dental orthodontic apparatus, and more particularly, And the patient's treatment plan was taken into account.

In addition, the present invention relates to a digital orthodontic appliance for digital orthodontic treatment, which enables an effective simulation treatment and an orthodontic appliance to be produced in each region by interlocking a local medical terminal and a central medical server used by orthodontic dentists in each area, A remote simulation treatment method using the same, and a manufacturing information providing method of the orthodontic appliance.

In general, malocclusion refers to malocclusion in which the upper and lower teeth are abnormal in dentition. Such malocclusion not only causes functional problems such as writing and pronunciation problems and aesthetic problems on the face, but also causes tooth decay and gum disease And may cause the same health problems.

Therefore, tooth orthodontic treatment should be performed in order to make such malocclusion into normal occlusion.

Accurate tooth image acquisition is necessary for diagnosis, treatment planning, and device manufacturing for orthodontic treatment. The most accurate use of facial bones and teeth is usually CT images. At this time, when the orthodontic appliance or the prosthesis is present in the tooth, the CT image of the tooth part includes a phase (noise) such as a residual image or a virtual image, and the accurate shape of the tooth is liable to be distorted due to this phase.

In order to solve this problem, it is necessary to correct the error of the tooth part in the CT image, and at the same time to superimpose or replace the plaster model of the tooth with the tooth part of the CT image by three-dimensional scanning. At this time, in order to accurately position the teeth scan image on the distorted CT image, not only the simple correction of the CT image but also the correction to the actual anatomical information is performed. In addition, the scan image and the CT A method of combining images is required. At this time, it is required that the simulation for simulating the operation and the surgery is performed for accurate reproduction while preserving the CT image excluding the distorted image information part of the teeth, and the apparatus for orthodontic treatment Production is required.

On the other hand, in general, a method of superimposing the entire volumetric center used in medical software is likely to cause an error because devices such as a calibration device installed in the subject's teeth and an impression containing gingiva are used.

In addition, the scan data superimposing method used in the CAD / CAM software has a problem that it is difficult to correct a distorted CT image while viewing a cross-sectional image of the CT as in a medical program.

In order to solve the above-mentioned problems and to satisfy the above-mentioned needs, the present invention provides a CT image for eliminating a residual phase such as afterimage and a virtual image, and for reproducing a correct shape of a tooth for orthodontic correction A method of generating matching information, a remote simulation treatment method using the same, and a manufacturing information providing method of the orthodontic appliance.

To this end, the present invention utilizes the functions of the medical software (program) and the specialized functions of the CAD / CAM software (design application program) so as not to use the individual information for each software but merge the two software into one, (Image information), and to provide a method of generating image matching information for digital tooth correction, a remote simulation treatment method using the image matching information, and a manufacturing information providing method of the orthodontic appliance.

On the other hand, the patient has the inconvenience of finding a large hospital in order to manufacture a reliable simulative treatment and orthodontic appliance.

In order to solve this problem, the present invention relates to a digital tooth device which enables a reliable medical treatment and an orthodontic device to be produced reliably in each region by interlocking a local medical terminal and a central medical server used by an orthodontic dentist in each area A method of generating image matching information for calibration, a remote simulation treatment method using the method, and a method of providing manufacturing information of a dental correction apparatus.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

According to another aspect of the present invention, there is provided a method of generating image matching information for digital tooth correction, comprising: generating a tooth scan data by three-dimensionally scanning an occlusion impression material obtained from a tooth region of a target patient; Creating a virtual three-dimensional template; Positioning the generated tooth waveform scan data in the generated template; Removing the tooth scan data region in the region of the template; And extracting a tooth region of the subject from the template region where the tooth pattern scan data region has been removed.

In addition, the remote simulation treatment method using the image matching information generation method for digital tooth calibration according to the present invention is characterized in that a) a local medical terminal capable of executing medical software performs a three-dimensional scan of the target patient, Generating a three-dimensional tooth image for a tooth region; b) a central medical server transmits and analyzes a tooth image of the generated subject and separates the individual teeth separately to generate a tooth-based three-dimensional object image; c) After the local medical terminal receives the three-dimensional object image of each patient's teeth generated in the central medical server, the local medical terminal displaces the corresponding teeth and performs a simulation treatment to generate the treatment result information for each patient ; And d) transmitting, by the local medical terminal, the state information of the treatment result of each tooth for the simulation result to the central medical server.

In one embodiment, the step a) includes the steps of: (a-1) generating tooth scan data by performing three-dimensional scanning of an occlusion impression material obtained from a tooth region of a subject; a-2) removing an area corresponding to the generated tooth pattern scan data in a virtual three-dimensional template; And a-3) extracting the tooth region of the subject in the template region where the tooth groove scan data region is removed.

In one embodiment, the step c) includes: c-1) receiving a three-dimensional object image per tooth of the subject patient; c-2) moving the position of the generated object image for each tooth on the basis of the facial image of the subject; c-3) correcting the detailed position of the moved object image of the object based on the orthodontic treatment of the subject; And c-4) combining the corrected object image for each tooth to generate treatment result state information for each tooth of the subject.

The manufacturing information providing method of the digital orthodontic apparatus according to the present invention is a method for providing manufacturing information of a digital orthodontic apparatus according to a CAD / CAM program installed in the local medical terminal, Generating a three-dimensional image of each tooth in a fused state; Extracting an image of a gingival region and a tooth region of a target patient among the three-dimensional images generated by the CAD / CAM program; And generating the orthodontic appliance manufacturing information for the target patient based on the extracted gingiva and the tooth part image of the target patient extracted by the CAD / CAM program.

The manufacturing information providing method of the digital orthodontic appliance according to the present invention may further include a step of acquiring information on the state of the treatment result of the subject by the result of performing the remote simulation treatment method by the CAD / CAM program installed in the local medical terminal Calling; Analyzing the result of the orthodontic treatment by the CAD / CAM program and extracting an image corresponding to a tooth region of the subject; Generating shape information of a device for orthodontic treatment based on the extracted image by the CAD / CAM program; Confirming a distance between the teeth of the subject and the apparatus for orthodontic treatment based on the image of the gingiva and the tooth part of the subject patient and the shape information of the generated orthodontic appliance by the CAD / CAM program; And generating production information of the apparatus for orthodontic treatment to which the separation distance is applied by the CAD / CAM program.

According to the present invention, the CT image and the scan data are interrelated and analyzed and processed, and the anatomical parts are classified to match the coordinates, thereby providing accurate occlusion information on the teeth of the target patient .

In particular, the present invention has the effect of performing accurate and efficient simulated treatment for orthodontic treatment by integrating the functions of medical software (program) and the specialized functions of CAD / CAM software (design application program) into one.

Therefore, there is an advantage that an effective plan for the actual orthodontic treatment can be established.

In addition, the present invention allows the local medical terminal used by the orthodontic dentist in each area and the central medical server to be interlocked so that effective simulation treatment and orthodontic device can be produced in each region, It is possible to provide reliability, ease, accuracy, and precision of fabrication of the semiconductor device.

Therefore, in the orthodontic treatment field, there is an effect of improving the reliability and safety of the patient for the treatment.

1 is a flowchart illustrating an image matching information generation method for digital tooth correction according to an embodiment of the present invention, a remote simulation treatment method using the same, and a manufacturing information providing method for a dental correction apparatus.
FIG. 2 is a flowchart illustrating a specific embodiment of step 'S100' of FIG.
3 is a flowchart illustrating a specific embodiment of step S300 of FIG.
FIG. 4 is a flowchart illustrating a specific embodiment of step 'S500' of FIG.
5 is a flowchart illustrating another specific example of step S500 of FIG.

Examples of the image matching information generation method for digital tooth correction according to the present invention, the remote simulation treatment method using the same, and the manufacturing information providing method of the orthodontic appliance can be applied variously. Hereinafter, A preferred embodiment will be described.

Hereinafter, in describing the present invention, an entry-level medical program may include software for analyzing and processing a CT (Computed Tomography) image to perform a simulation, etc., and the design application program may be CAD design, computer-aided design) or CAM (computer aided manufacturing) software. In addition, the medical program and the file processed in the CAD / CAM program may include files provided in the form of stereolithography (STL).

The configuration and specific data processing method of the present invention including the CT photographing device and the CAD / CAM program execution device can be variously modified according to the needs of those skilled in the art. In the present invention, for the sake of convenience of explanation, the subject performing the data analysis and processing can be described by a program, but the present invention is not limited to this, and can be understood as being mainly explained with an apparatus that executes the program.

1 is a flowchart illustrating an image matching information generation method for digital tooth correction according to an embodiment of the present invention, a remote simulation treatment method using the same, and a manufacturing information providing method for a dental correction apparatus.

Referring to FIG. 1, a local medical terminal generates a three-dimensional tooth image for a tooth region of a target patient from three-dimensional scan data of an occlusion impression material of a target patient under the control of a corresponding orthodontic dentist (Step S100). In one embodiment, the local medical terminal may include a terminal that is installed in a small to medium sized hospital located in an area in which a patient is residing or living, and used by the orthodontic dentist of the hospital. For example, a local medical terminal can run entry-level medical software with the same coordinate system as CAD.

When the local medical terminal generates the three-dimensional tooth image of the target patient, the central medical server analyzes the generated tooth image of the target patient, analyzes each tooth, and separately separates the teeth to generate a three-dimensional object image for each tooth Step S200). In one embodiment, the central medical server may include a terminal installed in a large hospital or medical device manufacturer capable of producing a patient's orthodontic device, and the calibration of the hospital may be used. For example, a central medical server can be interfaced with a calibration terminal that can use CAD.

The local medical terminal receives the three-dimensional object image of each patient's teeth generated by the central medical server, performs the simulated treatment by displacing the corresponding teeth under the control of the corresponding orthodontic dentist, (Step S300). For example, the state information of the tooth treatment results may include position and angle of each tooth according to the results of the simulated treatment by the orthodontic dentist.

The local medical terminal can transmit the treatment result status information of each tooth to the mock treatment result to the central medical server (step S400). In one embodiment, the central medical server synchronizes the simulated treatment to the subject based on the state information of the treatment results of the teeth transmitted from the local medical terminal, and arbitrarily calibrates the simulated treatment, if necessary, To the terminal. For example, the local medical terminal can re-verify the transmitted mock treatment results and, if there are any modifications, correct them and send them back to the central medical server. This process can be repeated to obtain highly reliable simulation information.

The central medical server can generate the orthodontic appliance manufacturing information for the target patient based on the received information on the treatment result status for each tooth (step S500). In one embodiment, the orthodontic appliance manufacturing information may include information produced in a CAD / CAM model. For example, the CAD / CAM information can be used to manufacture a corresponding orthodontic appliance through a manufacturing apparatus using the CAD / CAM information.

FIG. 2 is a flowchart illustrating a specific embodiment of step 'S100' of FIG.

Referring to FIG. 2, the medical grade medical software can generate tooth scan data by scanning the occlusal impression material obtained by acquiring a tooth region of a target patient three-dimensionally (step S110). In one embodiment, the medical software may additionally perform correction of the generated tooth pattern scan data. For example, the correction of the scan data may be performed so as to match the portion determined to be the same as the intraoral state of the corresponding patient in order to eliminate the error generated in the CT image.

The entry-level medical software can generate a virtual three-dimensional template (step S120). In one embodiment, the three-dimensional template can be generated in a size sufficient to contain tooth waveform scan data. For example, the template may be generated as a 'U' shape to correspond to the array structure of the teeth.

The medical grade medical software can position the generated tooth pattern scan data in the created template (step S130). In one embodiment, the medical software can position the maxillary and mandibular teeth respectively in two different moldings. In another embodiment, the medical software can be placed in one molding frame, including the upper and lower teeth. For example, medical software can place the maxillary and mandibular teeth in a mated state in one molding frame.

The entry-level medical software can remove the tooth scan data area in the area of the template (step S140). In one embodiment, the medical software may additionally remove unnecessary portions in addition to the tooth pattern scan data. For example, the unnecessary portion may include a portion of a template that deviates from the tooth scan data area.

In the entry-level medical software, the tooth region of the target patient can be extracted in the template region where the tooth scan data region is removed (Step S150). In one embodiment, the image of the extracted tooth region may be provided by the physician in charge of performing the orthodontic simulation of the subject.

3 is a flowchart illustrating a specific embodiment of step S300 of FIG.

Referring to FIG. 3, the entry-level medical software can receive a tooth-based three-dimensional object image of a subject patient created in the central medical server (step S310). In one embodiment, a three-dimensional object image of a subject's teeth may be generated by anatomically dividing each tooth of the subject. For example, the anatomical classification of each tooth in the subject is based on the frontal plane of the CT image, the sagittal plane (hypothetical plane divided by the human body), and the horizontal plane A transverse plane, a hypothetical face divided into upper and lower parts of the human body). In addition, the generated image file may include an STL file.

The medical grade medical software can move the position of the object image generated by the teeth based on the facial image of the patient (step S320). In one embodiment, the movement of the tooth-based object image may be performed by the medical practitioner using medical software. For example, movement of an object image per tooth may only include approximate position movement.

The entry-level medical software can correct the detailed position of the moved object image of each tooth on the basis of the simulation of the orthodontic treatment of the subject (step S330). In one embodiment, the detailed movement of an object-by-tooth image may include at least one of fine positioning and angle changes of the object image. For example, an object image per tooth can be moved from the forearm to molar in the order of the center coronal plane of the facial bone.

The entry-level medical software combines the corrected object images of teeth to generate information of the orthodontic treatment results of the patient (step S340). In one embodiment, the orthodontic treatment result information may be provided for the preparation of a device for orthodontic correction of the subject's patient and a device for orthodontic treatment. For example, the information on the result of orthodontic treatment can be generated as an STL file, and can be reproduced by rapid prototyping of a three-dimensional printer or a computerized numerical control milling machine. Information can be provided.

FIG. 4 is a flowchart illustrating a specific embodiment of step 'S500' of FIG.

4, an industrial (production) CAD / CAM program installed in a central medical server or a mobile terminal (which may include a device for manufacturing a dental orthodontic appliance) The three-dimensional image in which the respective teeth are fused can be generated from the condition-of-treatment result information (step S511). In one embodiment, the CAD / CAM program may change the fused three-dimensional image into a single object. For example, objectification of a three-dimensional image can include all of the maxillary and mandibular teeth of the subject. As another example, objectification of a three-dimensional image can be performed by dividing the upper and lower teeth of the subject into separate objects.

The CAD / CAM program can extract images of the gingival and tooth regions of the target patient out of the generated three-dimensional images (step S512). In one embodiment, image extraction may be performed by differentiating the maxilla and mandible of the subject.

The CAD / CAM program may generate the orthodontic appliance manufacturing information for the target patient based on the extracted gingiva and the tooth image of the target patient (step S513). In one embodiment, the orthodontic appliance fabrication information may include at least one of outline, material properties, usage, strength enhancement, and surface property improvement of the device.

5 is a flowchart illustrating another specific example of step S500 of FIG.

Referring to FIG. 5, the CAD / CAM program can call the treatment result status information of each patient's teeth (step S512). For example, the status information of the treatment results by teeth can be called by distinguishing between the maxillary teeth and the mandibular teeth of the subject. As another example, the state information of the treatment result by teeth can be called with the upper and lower teeth of the subject being occluded.

The CAD / CAM program analyzes the state information of the treatment results according to the teeth to extract an image corresponding to the gingiva and the tooth region of the target patient (step S522). In one embodiment, the tooth region of the subject patient may include tooth surface information. For example, the tooth region of the subject may further include gingival surface information.

The CAD / CAM program can generate the shape information of the orthodontic appliance for the target patient based on the extracted image (step S523). In one embodiment, the CAD / CAM program can perform a correction to set the orientation of the vector for the extracted image, the gingiva and the teeth, and to increase the set vector. For example, the orientation of the vector may be set to the outside direction of the extracted gingiva and tooth. In one embodiment, the shape information of the orthodontic appliance may be generated including an increased vector.

In the CAD / CAM program, the distance between the tooth of the subject and the device for orthodontic treatment can be confirmed based on the image of the gingiva and the tooth part of the subject and the shape information of the generated orthodontic appliance (step S524). For example, the spacing distance can be applied to a distance at which the manufactured dental bridge apparatus can be easily worn on the tooth region of the subject.

The CAD / CAM program can generate the manufacturing information of the orthodontic appliance to which the separation distance is applied (step S525). In one embodiment, the fabrication information of the orthodontic appliance can be generated based on the amount of movement of each tooth, the occlusal state, and the relationship with the facial bone.

Thereafter, a device for orthodontic treatment for the subject patient can be produced based on the production information generated by the CAD / CAM program.

The method of generating image matching information for digital tooth calibration according to the present invention, the remote simulation treatment method using the same, and the manufacturing information providing method of the orthodontic appliance have been described above. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Therefore, it is to be understood that the embodiments described above are intended to be illustrative, and not restrictive, in all respects, and that the scope of the invention is indicated by the appended claims rather than the foregoing description, And all equivalents and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (6)

By local medical terminals capable of running medical software,
A step of three-dimensionally scanning an occlusion impression material obtained from a tooth part of a target patient to generate tooth scan data, which is three-dimensional CT scan data;
Performing correction to match the generated tooth pattern scan data to the same portion as the intraoral state of the subject patient;
Creating a virtual U-shaped three-dimensional template to correspond to the array structure of the teeth;
Positioning the upper teeth and the lower teeth of the corrected tooth pattern scan data in an interlocked state in the generated template;
Removing the tooth pattern scan data area outside the area of the template in the area of the template; And
Extracting a tooth region of a target patient in a modeling region from which the tooth scan data region has been removed, and generating a three-dimensional tooth image for a tooth region of the target patient,
The central medical server receives and analyzes the generated tooth image of the target patient, separates the individual teeth separately to generate a three-dimensional object image per tooth,
The local medical terminal may acquire at least one of a frontal plane, a sagittal plane, and a horizontal plane of the CT image of the subject's teeth using the generated three- Based on the anatomical basis, STL image file is generated,
The coronal plane is a hypothetical plane divided by the front and back of the human body. The sagittal plane is a hypothetical plane divided by the front and back of the human body. The horizontal plane is a hypothetical plane divided by the human body vertically,
Wherein the STL image file is used as information capable of reproducing a tooth part appearance using a rapid prototyping of a 3D printer or a computerized numerical control milling machine. A method for generating image matching information. delete delete delete delete delete

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