WO2016200167A1

WO2016200167A1 - Orthodontic guide device method

Info

Publication number: WO2016200167A1
Application number: PCT/KR2016/006113
Authority: WO
Inventors: 김건태; 허다솜
Original assignee: (주) 시원
Priority date: 2015-06-09
Filing date: 2016-06-09
Publication date: 2016-12-15

Abstract

The present invention relates to an orthodontic guide device, and more specifically, to a device providing visual guidance and feedback to a health care provider in the orthodontic process of bonding brackets to teeth, the orthodontic guide device, according to one aspect, comprising: a processor generating matching information between an image of teeth and a guide comprising bonding locations of brackets according to orthodontic planning; and a control unit overlapping the guide onto the image of teeth on the basis of the generated matching information.

Description

Orthodontic guide device method

It relates to a guide device for orthodontics, and more particularly to a device for providing visual guidance and feedback to a medical practitioner in the orthodontic process of adhering the bracket to the teeth.

Orthodontic treatment refers to a series of procedures that prevent or treat abnormalities in tooth alignment.

In particular, orthodontic treatment means correcting healthy oral tissues by correcting various skeletal inconsistencies that may occur during the growth process, including simply arranging crooked teeth, so as to function normally.

Orthodontic treatment in children and adolescents is corrected before the growth of the jaw bone growth, and can be adjusted while controlling the jaw growth. However, after the growth of jaw bone such as adults is completed, orthodontic treatment is required to correct the position of the teeth using a fixed braces or removable braces.

For orthodontic treatment, it is necessary to fix the bracket in the tooth position planned according to the orthodontic plan.

For this process, the method of bonding through the adhesive between the teeth and the bracket is mainly used.

According to one side, the orthodontic guide device implemented by the computing terminal is a processor for generating matching information between the guide and the teeth image including the bonding position and the orientation of the bracket according to the orthodontic planning, and based on the generated matching information And a controller configured to overlap the guide with the tooth image.

In one embodiment, the adhesive position and direction of the bracket may be represented by an image implemented with augmented reality including a cross. In one embodiment, the bonding position and the direction of the bracket may be represented as an image implemented with augmented reality in the position where the bracket is to be bonded to the 3D image.

In one embodiment, the orthodontic guide device may further include a display for providing a tooth image overlapping the guide, the display may include a spectacle wearable device having a camera.

In another embodiment, the orthodontic guide device may further include a display that provides a tooth image in which the guide is overlapped, and the display may include a camera and an external display linked to the camera.

In one embodiment, the processor identifies a plurality of points associated with a tooth in the tooth image, and generates positions of the identified points as the matching information.

In one embodiment, the plurality of points are feature points included in at least one of the gum and tooth.

In one embodiment, at least one of the plurality of points corresponds to a radiopaque material disposed on the gum or tooth.

In one embodiment, at least one of the plurality of points corresponds to a positive protrusion block or a negative depression disposed on the gum or tooth.

In one embodiment, at least one of the plurality of points corresponds to at least one of a tattoo point pre-coloured to the gum or tooth and a color tape attached thereto.

According to another aspect, the orthodontic guide device implemented by the computing terminal, a processor for calculating an error between the position of the bracket in the dental image and the adhesive position of the bracket according to the orthodontic planning, and if the error is less than the threshold value to the operator It includes a signal generator for generating a control signal for providing a notification.

In one embodiment, the notification comprises orthodontic guide device comprising a visual marker implemented in augmented reality provided via a display. In one embodiment, the notification comprises orthodontic guide device comprising a sound effect provided to the operator.

According to the other side, the photopolymer control device implemented by the photopolymer control device computing terminal is a processor for determining the activation of the photopolymerizer based on the position of the bracket with respect to the teeth, and when the photopolymerizer is activated, in response to the control signal And a controller for controlling the photopolymerizer to irradiate light to the bracket.

In one embodiment, the processing unit determines the activation of the photopolymerizer when the position of the bracket relative to the tooth meets a predetermined criterion.

In one embodiment, the processing unit, if the orthodontic position set on the tooth and the position of the bracket overlaps more than a threshold value according to the orthodontic planning, determines that the predetermined criteria meet.

In one embodiment, the control signal is generated by a switching module connected to the photopolymerizer and wired or wireless.

In one embodiment, the switching module is controlled on and off by a foot switch and controls the generation of the control signal in accordance with the on and off control.

In one embodiment, the switching module generates the control signal in response to a predetermined voice signal.

In one embodiment, the control unit, according to the control signal, controls the photopolymerizer to irradiate the light by controlling at least one of the irradiation amount and the irradiation time.

According to another aspect of the present invention, an operation method of a dental orthodontic guide device implemented by a computing terminal may include generating matching information between a guide and a tooth image including an adhesive position of a bracket according to dental orthodontic planning, and generating the matching information. Based on the overlapping of the guide on the tooth image.

According to another aspect, the photopolymer control method implemented by the computing terminal, in the processing unit, if the position of the bracket with respect to the tooth meets a predetermined criterion, determining the activation of the photopolymerizer, and in the control unit, the photopolymerizer If activated, controlling the photopolymerizer to irradiate the bracket with light in response to a control signal.

According to another aspect, the orthodontic guide device implemented by the computing terminal is a processor for generating matching information between the 3D image and the teeth image of the tooth including the root, and based on the generated matching information, the image representing the root It includes a control that overlaps the tooth image.

In one embodiment, the processor extracts a 3D image of the tooth from a CT image, and identifies the tooth in the tooth image corresponding to the 3D image of the tooth to generate the matching information.

In one embodiment, the processor generates a screw placement position guide according to the orthodontic planning, and the controller overlaps the screw placement position guide on the tooth image.

1 illustrates an orthodontic guide device according to an embodiment.

2A illustrates a state in which a guide is implemented as an augmented reality on a display device by a dental orthodontic guide device according to an embodiment.

2B illustrates an embodiment of bonding a bracket according to a guide according to an embodiment.

3A is a view for explaining an embodiment of matching a guide and a dental image by displaying a feature point on a palatal rugae of the palate.

3B is a view for explaining an embodiment of matching a guide and a tooth image by displaying a feature point on a tooth.

3C is a view for explaining an embodiment of matching a guide and a tooth image by using feature points included in information of one tooth.

Figure 3d shows a state of guiding the placement position of the root and orthodontic screw with augmented reality by the orthodontic guide device according to one embodiment.

3E is a diagram for describing a process of identifying an object coordinate system, according to an exemplary embodiment.

4 illustrates an apparatus for controlling a photopolymerizer according to an embodiment.

5 is a flowchart illustrating a method of operating a dental orthodontic guide device according to an embodiment.

6 is a flowchart illustrating a method of operating a light polymerizer control apparatus according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of rights is not limited or limited by these embodiments. Like reference numerals in the drawings denote like elements.

The terminology used in the description below has been selected to be general and universal in the art to which it relates, although other terms may vary depending on the development and / or change in technology, conventions, and preferences of those skilled in the art. Therefore, the terms used in the following description should not be understood as limiting the technical spirit, and should be understood as exemplary terms for describing the embodiments.

In addition, in certain cases, there is a term arbitrarily selected by the applicant, and in this case, the meaning thereof will be described in detail in the corresponding description. Therefore, the terms used in the following description should be understood based on the meanings of the terms and the contents throughout the specification, rather than simply the names of the terms.

1 illustrates a dental orthodontic guide device 100 according to one embodiment.

The orthodontic guide device 100 may include a processor 110 and a controller 120. Apparatus 100 may be implemented at least temporarily by a computing terminal. The computing terminal includes any type of electronic device, such as a personal computer, medical device, smartphone, tablet computer, wearable device. The processor 110 and the controller 120 may each be a physical and / or logical element included in such an electronic device. For example, the processor 110 and the controller 120 may be implemented by dedicated hardware or general purpose computing resources controlled by software or an operating system. In addition, the processor 110 and the controller 120 may be implemented together in one chip, and thus may be physically indistinguishable. The implementation of such hardware resources may be changed by technology development or design change. Therefore, although it is understood that the functions, operations, and structures of the processor 110 and the controller 120 are distinguished from each other, the division may be interpreted differently according to embodiments.

The processor 110 generates matching information between the guide and the tooth image including the bonding position of the bracket according to the orthodontic planning. In addition, the controller 120 overlaps the guide with the tooth image based on the generated matching information.

According to an embodiment, a dental image is input to the device. The input dental image is an example, but not limited to, an image of the teeth of the orthodontic patient waiting for orthodontic treatment. The dental image may be an image of photographing a patient's teeth in real time at the time when the device 100 operates.

The adhesion position of each tooth-specific bracket for this patient may be planned in advance. Such planning may be automatically generated by software using medical image data of a patient's dental state, and / or may include a surgical plan manually generated by a medical person with reference to such data.

In the process up to orthodontic surgery, a medical practitioner takes an oral impression, builds a model, and obtains scan data. At this time, if necessary, attach the radio fake point. Then, CT scan is performed, and the scan data and CT scan results are matched to plan the adhesive position of the bracket for each tooth. While there are many ways of planning, it is understood throughout this specification that planning includes planning for what kind of brackets at which locations for each tooth.

On the other hand, after the planning is done, a matching marker may be attached to the surgical site immediately before surgery. After the impression is taken, scan or oral scan to obtain the data, and match this data with the matching of the scan data and CT scan result. Later, during the actual operation, the captured image is matched with this data and displayed as an image.

The orthodontic guide device 100 recognizes a difference between a coordinate system of a camera viewpoint (called an object viewpoint) and a reference coordinate system which is a reference of 3D coordinates in the planning, by using a tooth image which is currently photographed and input. This process can be understood as calculating a coordinate transformation function (or transformation vector) between the reference coordinate system and the object coordinate system. Such coordinate transformation is performed to synthesize virtual information on a real object or an image of an object so that augmented reality may be precisely provided.

2A illustrates a state in which the guide 220 is augmented reality on the display device 210 by the orthodontic guide device according to an embodiment.

Such photographing may be performed by a stand alone camera, but according to an embodiment, may be performed by a camera attached to glasses for augmented reality worn by a medical person. The present invention is not limited to photographing an image in a wearable device, such as a wearable device in glasses, and providing augmented reality in the device. However, as an exemplary embodiment, the wearable device in the form of glasses will be described below. Again, these wearable devices are just one example application.

In another application, a device in the form of a transparent display is also possible. The transparent display positioned between the medical practitioner and the patient conducting the surgery allows the medical practitioner to operate more freely and comfortably.

FIG. 2A is a view illustrating a guide for orthodontic dental augmented reality technique in a spectacle wearable device according to this exemplary application.

The guide 220 is information indicating an adhesive position of the bracket for each tooth based on the calibration planning, and is represented by a dotted line in the embodiment of FIG. 2A. The guide 220 may be distributed according to the tooth arrangement based on the feature points in the oral cavity. The feature points used in the generation of the guide and the feature points in the tooth image (or the intraoral image) currently identified through the display device 210 may be used. By matching them with each other, the guide can accurately indicate the bonding position.

Guide 220 according to an embodiment may further include a bracket order displayed on one side of the adhesive position of the bracket. In addition, it may further include related information such as the type of the bracket, the bonding order.

2B illustrates an embodiment of bonding the bracket 230 according to a guide according to one embodiment.

The operator can use the bracket holder to accurately position the bracket 230 at the bonding position along the guide displayed in the form of augmented reality. For example, the orthodontic guide device according to the present invention may calculate the overlap rate between the guide and the bracket, and update the calculated overlap rate to the guide. That is, the display device may display in real time how much the bracket and the guide overlap, that is, how accurately the adhesive is bonded.

In another example, the orthodontic guide device according to the present invention, when the bonding of the bracket at the current position is completed, the guide corresponding to the next sequence or the thickness of the display to give the effect of the bracket adhesion to the operator to the operator You can also guide.

In order for the guide to accurately guide the adhesive position of the bracket, accurate matching between the guide and the dental image is required. To this end, it is possible to designate a feature point in the oral cavity and use the feature point to match the dental image.

3A is a view for explaining an embodiment of matching a guide and a dental image by displaying a feature point 310 on a palatal rugae of the palate. 3B is a view for explaining an embodiment of matching a guide and a tooth image by displaying a feature point 320 on a tooth. On the other hand, Figure 3c is a view for explaining an embodiment of matching the guide and the teeth image using the feature point 330 included in the information of one tooth. Since each tooth is different in shape and size, matching using only one tooth information is also possible. The information of one tooth may include, for example, three or more feature points that are not on the same line. In general, when the bracket is adhered, precise handling is required to close up one tooth, so an embodiment of matching the image of a close-up image of a bracket-adhesive target by using information about one tooth regardless of the surrounding teeth is effective. Can be used.

When the camera linked to the wearable device photographs and sends a patient's dental image, the dental orthodontic guide device recognizes the object coordinate system at the camera viewpoint using a plurality of feature points included in the dental image. The tooth image may not be an image including only a tooth, but may be interpreted as an image of an intraoral cavity including a tooth.

The feature points can be either marker based or markerless based. First, markerless based recognition will be described. According to one embodiment, the plurality of points is a feature point included in at least one of a gum and a tooth. For reference, the gum generally refers to soft tissue surrounding the alveolar bone, but may also mean both soft tissue and hard tissue. Such a feature point may be a corner of a tooth, an interdental point between a tooth and a tooth, a palatal rugae, and a palatal incisal paplla.

This markerless based embodiment is possible because multidimensional feature points are extracted to a fairly precise level in existing teeth. In particular, since teeth protrude outwards and are commonly present in 3D data such as X-rays and CTs, it is very easy to extract tooth feature points from a dental image and match them with 3D data.

On the other hand, instead of or in addition to such markerless based recognition, marker based recognition is also possible. Since the image of the patient's mouth is taken by X-ray or CT to facilitate the matching and coordinate transformation of feature points only when the marker is taken, the material used may be a material having radiopaque or radiocontrast characteristics. For example, as illustrated by a reference numeral 310 of FIG. 3A, the points may be points made of a radiopaque material previously placed by a medical person on the patient's gum or palate. For example, it is a gta capture or an impermeable resin block.

In another embodiment, as indicated by reference numeral 320 of FIG. 3B, points in which a medical person has previously tattooed a tattoo on a gum or a tooth may be used. Various similar embodiments may exist and the listed embodiments are illustrative rather than limiting.

In such markers, since the CT image and the oral image scan image are matched, the markers can be precisely aligned between the real-time image and the CT image data during surgery by additionally placing the marker and performing the scan again.

The guide overlapping the dental image may have various shapes such as a dotted line, a solid line, an arrow, and an actual bracket shape. In addition, the guide may be displayed as text or an image together with information indicating the adhesive position of the bracket. For example, the patient's name, sex, age, disease classification, how many teeth are currently being prepared for adhesion, and comments on specifics previously left by the practitioner may optionally be presented. These various visual processes can be prepared in a variety of ways to assist the caregiver and to prevent any possible medical mistakes. Furthermore, the guide information may be presented together with the visual guideline or optionally voice.

Figure 3d shows a state of guiding the placement position of the root and orthodontic screw with augmented reality by the orthodontic guide device according to one embodiment. The orthodontic guide device according to one embodiment may be used to assist the operator in placing the orthodontic screw in the patient's alveolar bone without damaging the patient's root.

Orthodontic screws are generally placed in the alveolar bone between the roots to move the teeth in the desired direction without anchorage loss. However, there are many cases where the roots are narrow, so that the root of the patient may be damaged when the orthodontic screw is placed depending on the operator's prediction. Therefore, if the operator can confirm the position of the patient's root through augmented reality when placing the orthodontic screw can greatly reduce the risk of damage to the patient's root.

In an embodiment, the orthodontic guide device may overlap and display a root image 340 representing the root of the patient in a dental image of the oral cavity of the patient in real time. For example, as shown in FIG. 3D, the root image 340 and / or the screw placement position guide 350 of the patient may be implemented in augmented reality in a dental image of the patient's mouth taken in real time. In this way, the operator can easily check the position of the root of the patient, it is possible to prevent the root damage of the patient at the time of orthodontic screw placement.

In one embodiment, the CT image may be used to obtain a root image for augmented reality. For example, a method of extracting a 3D image of a tooth from a CT image and matching a crown portion of the extracted 3D image of the tooth with a crown portion in a dental image of the oral cavity may be used. In detail, when a 3D image of a tooth extracted from a tooth and a gum, which is a target region of a patient, is extracted from a CT image, a tooth image corresponding to each tooth in the tooth image is generated, and the root image within the tooth image. May be overlapped with augmented reality. In addition, based on the 3D image of the tooth can generate a screw placement position guide 350 that can prevent root damage in accordance with the orthodontic planning and overlap it in the tooth image.

In one embodiment, the bracket 360 may be used as a marker to implement augmented reality. In general, since the orthodontic screw is often placed after mounting the bracket and the wire, the accuracy of tooth recognition in the matching step can be improved by utilizing the bracket 360 in the dental image as a marker.

If three or more points are not placed on the same line, they are reflected in the 3D data and in the real-time photographing image, so that accurate matching between the guide and the tooth image is possible.

According to one embodiment, markers may be displayed at each vertex in the form of an equilateral triangle in order to reduce the amount of calculation and to be accurate. In addition, the accuracy of image recognition may be improved by placing two or more marker portions of the equilateral triangle shape. As described above, even if the patient's oral cavity is photographed by X-ray or CT, since such markers must be photographed to facilitate matching of coordinates and transformation of coordinates, the material used as a marker may be a material having radiopaque or radiocontrast characteristics. . For example, these points may be points of radiopaque material previously placed by a medical person on the patient's gum or palate.

When the processor according to the present invention performs image recognition, the higher the complexity of the feature points, the higher the recognition accuracy. As a marker, a gata captureer, a pin, a tattoo, or the like may be used. The gatapocher is used as a conventional dental article and can be used as a marker according to embodiments. In addition, a pin with a radiopaid material disposed on the head portion may be used, and in cases where it is difficult to insert a physical form into the patient's gums, a point where a medical person has previously tattooed a gum or a tooth may be used. It may be. Various similar embodiments may exist and the listed embodiments are illustrative rather than limiting.

Hereinafter, the identification process of the object coordinate system will be described in more detail.

When the feature points are recognized by the processor in the dental image, their normal directions may be calculated. Position vector of camera providing tooth image for augmented reality

Say, vector

The direction vector from to the position of the first marker

The direction vector to the position of the second marker

The direction vector to the position of the third marker

In this case, the position vector of each marker

And

Is expressed as the following equation. The scalar values r, s and t are the distance between the camera position and the markers. Of course, in the example where there is one marker, these vectors may correspond to a plurality of points in the marker.

Then, scalars r, s and t can be found by solving the equation of Equation 2 below.

The position vectors of the markers

And

If is found, the position vector of the pointing position

Can be obtained. Then, from the center point of the positions of the markers, it is h apart in the normal direction. vector

Is the normal vector of the plane formed by the marker positions. And referring to the equation below, the position vectors of the markers

And

Direction vector from

Can be obtained.

Principal vector as above

Is computed for one or more, and is compared to a vector in the reference coordinate system in which the original 3D data was constructed, the vector transforms between coordinate systems using vector operations.

Can be obtained. this

To convert the object coordinate system to the reference coordinate system, and vice versa.

Inverse of

Using a transforming the planning guide on the reference coordinate system to the real object coordinate system may be used.

4 illustrates a light polymerizer control apparatus 400 according to an embodiment.

The photopolymerizer control apparatus 400 according to an embodiment may determine whether the bracket is properly positioned on the tooth based on the calibration planning. In addition, the light source may be controlled to irradiate ultraviolet rays when it is properly positioned as a result of determination.

To this end, the photopolymerizer control apparatus 400 may include a processor 410 and a controller 420.

The processor 410 determines the activation of the photopolymerizer based on the position of the bracket with respect to the tooth. That is, the processor 410 may determine the activation of the photopolymerizer when the position of the bracket with respect to the teeth meets a predetermined criterion. For example, the corrected position set in the tooth may be predetermined according to the corrected plan, and the processor 410 may determine whether the bracket meets a predetermined criterion by determining whether the bracket is properly positioned at the corrected position.

In detail, the processor 410 may determine that the predetermined position meets a predetermined criterion when the corrected position and the position of the bracket overlap the threshold value. In addition, the processor 410 may determine that the predetermined position meets a predetermined criterion when the correction position and the bracket position set on the tooth have an error of less than or equal to a threshold value.

When the photopolymerizer is activated, the controller 420 controls the photopolymerizer to radiate ultraviolet rays to the bracket in response to the control signal. For example, the controller 420 may control the photopolymerizer to irradiate ultraviolet rays by controlling at least one of an irradiation amount and an irradiation time point according to the control signal.

The control signal may be generated by the switching module 430 connected to the photopolymerizer and the wired or wireless.

In particular, generation of the control signal may be controlled according to the switching module 430 controlled on and off by a foot switch.

As another example, the control signal may be generated through the switching module 430 in response to a predetermined voice signal.

The operation method of the orthodontic guide device or the orthodontic guide method according to an embodiment generates the matching information between the tooth information and the guide information including the adhesive position of the bracket according to the orthodontic planning (step 501).

For example, the orthodontic guide method may identify a plurality of points associated with a tooth in an input image, and generate positions of the identified points as the matching information. In addition, the feature points included in at least one of the gum and teeth may be used as points. In this case, at least one of the plurality of points may correspond to a radiopaque material disposed on the gum or tooth, and may correspond to at least one of a tattoo point pre-colored on the gum or tooth and a color tape attached thereto. have.

In addition, the orthodontic guide method may overlap the tooth image with the guide information based on the generated matching information (step 502). Then, the orthodontic guide method outputs a matching process between the bracket and the guide information (step 503). For example, the orthodontic guide method displays the overlap rate between the bracket and the guided bonding position in%, and the operator can check the displayed overlap rate and use it for positioning of the bracket, thereby improving the accuracy according to the adhesion. .

The method of operating the photopolymerizer control apparatus or the photopolymerizer control method according to an embodiment checks the position of the bracket with respect to the tooth (step 601). The calibration position set in the tooth may be previously determined according to the calibration plan, and the photopolymerizer control method according to an embodiment may monitor in real time the calibration position determined in accordance with the calibration plan and the relative position of the tracked bracket.

Next, the photopolymerizer control method determines whether the position of the bracket with respect to the tooth identified in step 601 meets a predetermined criterion (step 602).

For example, the position of the bracket may be determined by determining whether or not the corrected position of the tooth and the position of the bracket overlap the threshold value or more according to the corrective plan, or whether the set corrected position and the position of the bracket have an error below the threshold value. It can be determined whether the s meet the predetermined criteria.

The method of controlling the photopolymerizer may control the photopolymerizer to be activated when the position of the bracket with respect to the identified tooth meets a predetermined criterion as a result of the determination of step 602 (step 603).

That is, the photopolymerizer control method may control the photopolymerizer to be activated when the set calibration position and the bracket position overlap more than the threshold value or when the set calibration position and the bracket position have an error less than or equal to the threshold value.

On the other hand, the photopolymerizer control method, if the determination result of the step 602, the bracket position with respect to the identified tooth does not meet a predetermined criterion to branch to step 601 to check the position of the bracket relative to the tooth can be performed. have.

That is, the photopolymerizer control method branches to step 601 when the set calibration position and the bracket position overlap below the threshold value, or when the set calibration position and the bracket position have an error greater than or equal to the threshold value. Confirmation process can be performed.

Only when the photopolymerizer is activated, the photopolymerizer can irradiate ultraviolet rays.

The photopolymer control method receives a control signal from the switching module when the photopolymerizer is activated (step 604) and controls the photopolymerizer to irradiate the bracket with ultraviolet rays according to the received control signal (step 605).

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the devices and components described in the embodiments may be, for example, processors, controllers, arithmetic logic units (ALUs), digital signal processors, microcomputers, field programmable arrays (FPAs), It may be implemented using one or more general purpose or special purpose computers, such as a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to the execution of the software. For convenience of explanation, one processing device may be described as being used, but one of ordinary skill in the art will appreciate that the processing device includes a plurality of processing elements and / or a plurality of types of processing elements. It can be seen that it may include. For example, the processing device may include a plurality of processors or one processor and one controller. In addition, other processing configurations are possible, such as parallel processors.

The software may include a computer program, code, instructions, or a combination of one or more of the above, and configure the processing device to operate as desired, or process it independently or collectively. You can command the device. Software and / or data may be any type of machine, component, physical device, virtual equipment, computer storage medium or device in order to be interpreted by or to provide instructions or data to the processing device. Or may be permanently or temporarily embodied in a signal wave to be transmitted. The software may be distributed over networked computer systems so that they may be stored or executed in a distributed manner. Software and data may be stored on one or more computer readable recording media.

The method according to the embodiment may be embodied in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Although the embodiments have been described with reference to the accompanying drawings as described above, various modifications and variations are possible to those skilled in the art from the above description. For example, the described techniques may be performed in a different order than the described method, and / or components of the described systems, structures, devices, circuits, etc. may be combined or combined in a different form than the described method, or other components. Or even if replaced or substituted by equivalents, an appropriate result can be achieved.

Therefore, other implementations, other embodiments, and equivalents to the claims are within the scope of the claims that follow.

Claims

In the orthodontic guide device implemented by a computing terminal,

A processor for generating matching information between a guide and a tooth image including a bonding position and a direction of the bracket according to the orthodontic planning; And

A controller configured to overlap the guide with the tooth image based on the generated matching information

Orthodontic guide device comprising a.
The method of claim 1,

Bonding position and direction of the bracket is orthodontic guide device characterized in that the image is represented by augmented reality including a cross.
The method of claim 1,

Bonding position and direction of the bracket is a 3D image of the orthodontic guide device, characterized in that the appearance of the image implemented in augmented reality in the position where the bracket is to be bonded.
The method of claim 1,

The guide further comprises a display for providing an overlapping tooth image,

The display includes a orthodontic guide device comprising a spectacle wearable device having a camera.
The method of claim 1,

The guide further comprises a display for providing an overlapping tooth image,

The display includes a orthodontic guide device comprising a spectacle wearable device having a camera.

The display providing the information includes a camera and an external display linked to the camera.
The method of claim 1,

And the processor identifies a plurality of points associated with a tooth in the tooth image, and generates positions of the identified points as the matching information.
The method of claim 6,

And the plurality of points are feature points included in at least one of a gum and a tooth.
The method of claim 6,

At least one of the plurality of points corresponds to a radiopaque material disposed on the gum or tooth.
The method of claim 6,

At least one of the plurality of points corresponds to a positive protrusion block or a negative depression disposed on the gum or tooth.
The method of claim 6,

And at least one of the plurality of points corresponds to at least one of a tattoo point precolored on the gum or tooth and a color tape attached thereto.
In the orthodontic guide device implemented by a computing terminal,

A processor for calculating an error between an adhesive position of the bracket and a position of the bracket in the dental image according to the orthodontic planning; And

Signal generation unit for generating a control signal for providing a notification to the operator when the error is less than the threshold value

Orthodontic guide device comprising a.
The method of claim 11,

The notification includes orthodontic guide device comprising a visual marker implemented in augmented reality provided via a display.
The method of claim 11,

The notification device for orthodontic treatment comprising the sound effect provided to the operator.
In the photopolymer control device implemented by a computing terminal,

A processor configured to determine the activation of the photopolymerizer based on the position of the bracket relative to the tooth; And

A controller configured to control the photopolymerizer to irradiate the bracket with light in response to a control signal when the photopolymerizer is activated

Photopolymer control device comprising a.
The method of claim 14,

The processing unit,

And determine the activation of the photopolymerizer when the position of the bracket relative to the tooth meets a predetermined criterion.
The method of claim 14,

The processing unit,

And an orthodontic appliance configured to meet the predetermined criterion when a tooth orthodontic position set on the tooth and a position of the bracket overlap a threshold value or more according to orthodontic planning.
The method of claim 14,

And the control signal is generated by a switching module connected to the photopolymerizer by wire or wireless.
The method of claim 17,

The switching module,

An on-polymerizer control device controlled on and off by a foot switch and controlling generation of the control signal according to the on and off control.
The method of claim 17,

The switching module,

And a photopolymer controller for generating the control signal in response to a predetermined voice signal.
The method of claim 14,

The control unit,

And a photopolymerizer to control the photopolymerizer to irradiate the light by controlling at least one of an irradiation dose and an irradiation time point according to the control signal.
In the operation method of the orthodontic guide device implemented by a computing terminal,

Generating matching information between the guide and the tooth image including the bonding position of the bracket according to the orthodontic planning; And

Overlapping the guide with the dental image based on the generated matching information

Method of operation of the orthodontic guide device comprising a.
In the optical polymerizer control method implemented by the computing terminal,

In the processing unit, determining the activation of the photopolymerizer when the position of the bracket with respect to the teeth meets a predetermined criterion; And

Controlling, by the controller, the photopolymerizer to irradiate the bracket with light in response to a control signal when the photopolymerizer is activated;

Photopolymer control method comprising a.
In the orthodontic guide device implemented by a computing terminal,

A processor for generating matching information between the 3D image and the tooth image of the tooth including the root; And

A controller configured to overlap the image representing the tooth root with the tooth image based on the generated matching information

Orthodontic guide device comprising a.
The method of claim 23,

The processor extracts a 3D image of the tooth from a CT image, and identifies the teeth in the tooth image corresponding to the 3D image of the tooth to generate the matching information.
The method of claim 23,

The processor generates a screw placement position guide according to orthodontic planning,

The control unit overlaps the screw placement position guide to the tooth image, the orthodontic guide device.