KR20180008532A - Tooth correction guide device method - Google Patents

Abstract

And more particularly to a device for providing visual guidance and feedback to a medical practitioner in a procedure of orthodontic bonding of a bracket to a tooth, wherein the orthodontic guide device according to one of the aspects is used for orthodontic planning And a controller for overlapping the guide with the tooth image based on the generated matching information. According to another aspect of the present invention,

Description

Tooth correction guide device method

Relates to a guide device for orthodontics, and more particularly to a device for providing visual guidance and feedback to a medical practitioner during orthodontic procedures to attach a bracket to a tooth.

Orthodontic treatment refers to a series of procedures for preventing or treating abnormalities in the tooth arrangement.

In particular, orthodontic treatment means correcting various skeletal mismatches that may occur during the growth process, including simply arranging crooked teeth, and correcting them to healthy oral tissues so that they can perform their normal functions.

Because orthodontic treatment in children and adolescents corresponds to the correction before the completion of jaw growth, correction can be made while controlling the jaw growth. However, after completing the growth of the adult jaw, orthodontic treatment is needed to fix the position of the dentition using a fixed brace or a removable brace.

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

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

According to one aspect, a tooth calibration guide device implemented by a computing terminal includes a processor that generates matching information between a guide and a tooth image that includes an adhesion location and orientation of the bracket in accordance with the orthodontic planning, and based on the generated matching information, And a controller for overlapping the guide with the tooth image.

In one embodiment, the attachment position and orientation of the bracket may appear as an image implemented as an augmented reality including a cross. In one embodiment, the attachment position and orientation of the bracket may appear as an image of the augmented reality at the location where the bracket is to be adhered to the 3D image of the bracket.

In one embodiment, the orthodontic guide device further comprises a display on which the guide provides an overlapped tooth image, the display including a spectacles wearable device having a camera.

In another embodiment, the orthodontic appliance further comprises a display wherein the guide provides an overlapped tooth image, the display including a camera and an external display associated with the camera.

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

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

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

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

In one embodiment, at least one of the plurality of points corresponds to at least one of a tattoo point and a color tape to be pre-colored on the gums or teeth.

According to another aspect, a tooth calibration guide device implemented by a computing terminal includes a processor for calculating an error between an adhesion position of the bracket and a position of the bracket in the tooth image according to the orthodontic planning, and a processor And a signal generator for generating a control signal for providing a notification.

In one embodiment, the notification comprises that a visual indicia implemented as an augmented reality is provided through a display. In one embodiment, the notification includes an effect tone provided to the practitioner.

According to another aspect, a light curing unit control device implemented by a computing terminal of a light curing unit control device includes a processing unit that determines activation of a light curing unit based on a position of a bracket with respect to a tooth, And controlling the light curing unit to irradiate the bracket with light.

In one embodiment, the processing unit determines activation of the light curing unit when the position of the bracket with respect to the tooth meets a predetermined criterion.

In one embodiment, the processing unit determines that the tooth calibration position and the bracket position set in the tooth according to the orthodontic planning match the predetermined criteria when the position of the bracket overlaps the threshold value or more.

In one embodiment, the control signal is generated by a switching module that is wired or wirelessly connected to the light curing unit.

In one embodiment, the switching module is on / off controlled by a foot switch, and controls the generation of the control signal in accordance with the on-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 controls the light curing unit to control at least one of the irradiation amount and the irradiation time according to the control signal to irradiate the light.

According to another aspect, a method of operating a tooth correction guide apparatus implemented by a computing terminal includes generating matching information between a guide and a tooth image including an adhesion position of a bracket according to a tooth correction plan, And superimposing the guide on the tooth image based on the tooth image.

According to another aspect, a method of controlling a light curing unit implemented by a computing terminal includes the steps of: determining, in a processing unit, activation of a light curing unit when a position of a bracket with respect to a tooth meets a predetermined criterion; And when activated, controlling the light curing unit to irradiate light to the bracket in response to the control signal.

According to another aspect, a tooth correction guide device implemented by a computing terminal includes a processor for generating matching information between a 3D image of a tooth including a tooth root and a tooth image, and an image representing the root, based on the generated matching information, To the tooth image.

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

In one embodiment, the processor creates a screw placement position guide in accordance with the orthodontic planning, and the control portion overlaps the screw placement position guide with the tooth image.

1 shows a tooth alignment guide device according to one embodiment.
FIG. 2A is a view showing a guide implemented in a display device as an augmented reality by the orthodontic appliance according to an embodiment of the present invention.
FIG. 2B illustrates an embodiment of bonding the bracket according to the guide according to an embodiment.
3A is a view for explaining an embodiment in which feature points are displayed on a palatal rugae of a palate to match a guide and a tooth image.
FIG. 3B is a view for explaining an embodiment in which feature points are displayed on a tooth to match a guide and a tooth image.
FIG. 3C is a view for explaining an embodiment in which a guide and a tooth image are matched using characteristic points included in information of one tooth. FIG.
FIG. 3D shows a state in which the placement position of the root and the orthodontic screw is guided to the augmented reality by the orthodontic guide apparatus according to one embodiment.
FIG. 3E is a diagram for explaining an identification process of an object coordinate system according to an embodiment.
4 shows a light curing device control apparatus according to one embodiment.
5 is a flow chart illustrating a method of operating the orthodontic appliance according to one embodiment.
6 is a flowchart showing an operation method of the light curing unit control apparatus according to one embodiment.

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

The terms used in the following description are chosen to be generic and universal in the art to which they are related, but other terms may exist depending on the development and / or change in technology, customs, preferences of the technician, and the like. Accordingly, the terminology used in the following description should not be construed as limiting the technical thought, but should be understood in the exemplary language used to describe the embodiments.

Also, in certain cases, there may be a term chosen arbitrarily by the applicant, in which case the meaning of the detailed description in the corresponding description section. Therefore, the term used in the following description should be understood based on the meaning of the term, not the name of a simple term, and the contents throughout the specification.

FIG. 1 illustrates a tooth alignment guide apparatus 100 according to one embodiment.

The orthodontic appliance 100 may include a processor 110 and a controller 120. The device 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, a medical device, a smart phone, a tablet computer, and a wearable device. The processor 110 and the controller 120 may be physical and / or logical elements included in such electronic devices, respectively. The processor 110 and the control unit 120 may be implemented by dedicated hardware or general purpose computing resources controlled by software or an operating system. Also, the processor 110 and the control unit 120 may be implemented together on one chip, and thus may not be physically separated, and the implementation of such hardware resources may be changed as much as possible by technological development or design changes. Accordingly, it is understood that the functions, operations, and structures of the processor 110 and the control unit 120 are distinguished from each other, but there may be cases in which such distinctions are interpreted differently according to the embodiment.

The processor 110 generates matching information between the guide and the tooth image including the adhesion position of the bracket according to the orthodontic planing. Further, the control unit 120 overlaps the guide on the tooth image based on the generated matching information.

According to one embodiment a tooth image is input to the device. The input tooth image is illustratively, but not exclusively, an image of a tooth of a calibrating patient awaiting tooth correction. The tooth image may be a video image of the patient's teeth in real time as soon as the apparatus 100 is operating.

For this patient, the adhesive location of each bracket by each tooth may be preplanned. Such planning may be automatically generated by the software using the medical image data of the patient's tooth condition, and / or may include a surgical plan that the medical person has manually generated with reference to such data.

In the course of the correction, the surgeon obtains the oral impression, creates the model, and obtains the scan data. At this time, attach a laser diode point if necessary. Then, CT scan is performed, and scan positions and CT scan results are matched with each other to plan the adhesion position of each bracket. Although there are a variety of plans, it is understood that planning in general throughout this specification encompasses planning for what kind of brackets to adhere to at each position of each tooth.

On the other hand, a matching marker can be attached to the operation site just before the surgery. After the impression is taken, a scan or a mouth scan is performed to acquire the data, and the data is matched with the scan data and the CT scan result. Later, during the actual operation, the photographed image is matched with this data and displayed as an image.

The tooth calibration guide apparatus 100 recognizes a difference between a coordinate system of a camera viewpoint (referred to as an object viewpoint) and a reference coordinate system serving as a reference of 3D coordinates in the planning using a currently imaged tooth image. This process can be understood as calculating a coordinate transformation function (or a transformation vector) between the reference coordinate system and the object coordinate system. In order to provide augmented reality precisely, this coordinate transformation is performed in order to synthesize and provide virtual information on an image of a real object or an object.

FIG. 2A illustrates a guide 220 implemented as an augmented reality on a display device 210 by a orthodontic appliance according to an embodiment.

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

In other applications, transparent display devices are also possible. Transparent display forms placed between the patient and the surgeon who is performing the surgery can make the surgeon more free and comfortable.

FIG. 2A shows a guide for performing orthodontic correction using an augmented reality technique in a spectacled wearable device according to this exemplary application.

The guide 220 is information indicating the bonding position of the bracket for each tooth based on the correction plan, and is represented by a dotted line in the embodiment of FIG. 2A. The guide 220 can be distributed according to the tooth arrangement based on the minutiae in the oral cavity. The minutiae used in the generation of the guide and the minutiae points in the tooth image (or intraoral image) So that the guide can accurately indicate the bonding position.

The guide 220 according to one embodiment may further include a bracket sequence displayed on one side of the bonding position of the bracket. In addition, it may further include related information such as the type of the bracket, the order of bonding, and the like.

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

The practitioner can use the bracket holder to accurately position the bracket 230 in the adhesion position along the guide displayed in the augmented reality form. For example, the orthodontic appliance guide apparatus according to the present invention can calculate the overlap rate between the guide and the bracket, and update the calculated overlap rate with the guide. That is, the display device can display in real time how much the bracket and the guide are overlapped, that is, how much accuracy is adhered.

In another example, when the bracket bonding at the current position is completed, the orthodontic appliance guide device according to the present invention gives the effect of blinking the guide corresponding to the next procedure, displaying the thickness differently, You can also guide me.

Accurate matching between the guide and the tooth image is necessary for the guide to accurately guide the location of the bracket's gluing. For this purpose, feature points in the oral cavity can be specified, and matching with teeth images is possible using these feature points.

3A is a view for explaining an embodiment in which a feature point 310 is displayed on a palatal rugae of a palate to match a guide and a tooth image. FIG. 3B is a view for explaining an embodiment in which a feature point 320 is displayed on a tooth to match a guide and a tooth image. 3C is a diagram for explaining an embodiment of matching a guide and a tooth image using feature points 330 included in one tooth information. Since each tooth has a different shape and size, matching using only one tooth information is possible. The information of a tooth may include, for example, three or more feature points that are not on the same line. Generally, when the bracket is adhered, precise handling is required, and one tooth is close-up. Therefore, the embodiment of matching the image taken by close-up of the teeth to be bracket-bonded using information about one tooth regardless of the surrounding teeth is effective Can be used.

When a camera interlocked with the wearable device photographs and sends a tooth image of a patient, the tooth correction guide device recognizes an object coordinate system of the camera viewpoint using a plurality of minutiae included in the tooth image. The tooth image is not an image including only a tooth but can be interpreted as an image taken in an oral cavity including a tooth.

Feature points can be either marker based or marker based based recognition. First, we describe the markerless based recognition. According to an embodiment, the plurality of points are minutiae included in at least one of the gums and the teeth. For reference, the gum usually refers to the soft tissue surrounding the alveolar bone, but it may also refer to both soft tissue and hard tissue. Such features may be the edges of the teeth, the interdental points between the teeth and teeth, the palatal rugae of the palate, and the palatal incisal papilla.

This markerless based embodiment is possible because the multidimensional feature points are extracted to a fairly sophisticated degree in existing teeth. Particularly, since the teeth protrude to the outside, and the medical images such as X-rays and CTs themselves are commonly present in the data in 3D, it is very easy to extract the tooth characteristic points from the teeth image and match with the 3D data.

On the other hand, marker-based recognition is possible instead of or in addition to such markerless-based recognition. Even when the patient's oral cavity is photographed by X-ray or CT, the material used may be a material having radiopaque property or radiation contrast property because matching of the feature point and coordinate conversion are easy to be performed when these markers are photographed. Such points, such as 310 in FIG. 3A, may be points made of radiopaque material that a medical person has previously placed in the patient's gums or palate. Such as, for example, garapata or impermeable resin blocks.

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

In these markers, since the CT image and the oral image scan image are matched, the marker can be additionally disposed before the operation and the scan can be performed again, so that the matching between the real-time image and the CT image data during the operation can be elaborated.

The guide that overlaps the teeth image can be various forms such as dotted line, solid line, arrow, actual bracket shape. In addition, the guide may display various information together with text or image in addition to the information indicating the bonding position of the bracket. For example, the patient's name, gender, age, disease classification, number of teeth that are currently preparing for bonding, number of teeth, comments of uniqueness previously left by the healthcare provider, etc. may optionally be presented. These diverse visualizations can be prepared in many ways to assist medical care and prevent any possible medical mistakes. Furthermore, the guideline information may be presented with the visual guidance or alternatively by voice.

FIG. 3D shows a state in which the placement position of the root and the orthodontic screw is guided to the augmented reality by the orthodontic guide apparatus according to one embodiment. The orthodontic guide device according to one embodiment can be used to help the practitioner to arrange the orthodontic screw without damaging the patient's root when the orthodontic screw is placed on the patient's alveolar bone.

The orthodontic screw is usually placed in the alveolar bone between the roots to move the tooth in the desired direction without anchorage loss. However, since the distance between the roots is often narrow, depending on the operator's prediction, when the orthodontic screw is placed, the root of the patient may be damaged. Therefore, if the practitioner can confirm the position of the root of the patient when the orthodontic screw is placed through the augmented reality, the risk of damage to the root of the patient can be greatly reduced.

In one embodiment, the orthodontic appliance can display an overlapping root image 340 indicative of the root of a patient in a tooth image of the patient's mouth taken in real time. For example, as shown in FIG. 3D, a root image 340 of a patient and / or a screw placement guide 350 may be implemented as an augmented reality in a tooth image of a patient's mouth taken in real time. Thus, by allowing the operator to easily confirm the position of the root of the patient, it is possible to prevent damage to the root of the patient at the time of placing the orthodontic screw.

In one embodiment, a CT image may be used to obtain a root image for an augmented reality implementation. For example, a method of extracting a 3D image of a tooth from a CT image and matching the crown region of the 3D image of the extracted tooth with the crown region of the tooth image of the oral cavity can be used. Specifically, when the 3D image of the tooth extracted from the CT image is matched with the teeth image of the patient's treatment target tooth and gum, a root image corresponding to each tooth in the tooth image is generated, May overlap with the augmented reality. Also, based on the 3D image of the tooth, a screw placement position guide 350 that can prevent root damage in accordance with orthodontic planning can be created and overlapped within the tooth image.

In one embodiment, the bracket 360 may be utilized as a marker for implementing an augmented reality. Generally, since the orthodontic screw is often placed after attaching the bracket and the wire, the accuracy of tooth recognition can be improved in the matching step by using the bracket 360 in the tooth image as a marker.

FIG. 3E is a diagram for explaining an identification process of an object coordinate system according to an embodiment.

If three or more points are placed on the same line, they are reflected in the 3D data and reflected in the real-time shot image, so that accurate matching between the guide and the tooth image is possible.

According to one embodiment, markers can be displayed on each vertex in the form of an equilateral triangle to reduce the amount of computation and make the calculations accurate. In addition, it is possible to increase the accuracy of image recognition by placing two or more markers of the equilateral triangle shape. As described above, even when the patient's mouth is photographed by X-ray or CT, since the matching of the feature points and the coordinate transformation are easy to be performed, the substance used as the marker may be a substance having radiopaque property or radiation contrast property . Such points may be, for example, points made of radiopaque material that a medical person has previously placed in the patient's gums 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. The marker may be a katapocha, a pin, a tattoo, or the like. Kataphora is conventionally used as a dental product and can be used as a marker according to embodiments. In addition, pins with radio-paced material disposed on the head may be utilized, and points where the medical person paints the tattoo on the gums or teeth are used when it is difficult to insert the physical form into the patient's gums It is possible. Various similar embodiments may exist and the enumerated embodiments are illustrative rather than limiting.

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

라고 하고, 벡터

로부터 제1 마커의 위치로의 방향 벡터를

제2 마커의 위치로의 방향 벡터를

제3 마커의 위치로의 방향 벡터를

으로 표현하면, 각 마커들의 위치 벡터

및

는 아래 수학식과 같이 표현된다. 스칼라 값 r, s 및 t는 카메라 위치와 마커들 사이의 거리이다. 물론 마커가 하나인 예에서 이 벡터들은 마커 내의 복수 개의 포인트들에 대응할 수도 있다.When the feature points are recognized by the processor in the tooth image, their normal direction can be calculated. The position vector of the camera that provides the tooth image for the augmented reality

And the vector

To the position of the first marker

The direction vector to the position of the second marker is

The direction vector to the position of the third marker is

, The position vector of each marker

And

Is expressed by 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 of a single marker, these vectors may correspond to a plurality of points in the marker.

Then, the scalar r, s, and t can be obtained by solving the following equation (2).

및

가 구해지면, 포인팅 위치의 위치 벡터

가 구해질 수 있다. 그러면, 마커들 위치의 중심점으로부터, 노말(normal) 방향으로 h 만큼 떨어져 있다. 벡터

는 마커들 위치가 이루는 평면의 노말 벡터이다. 그리고 아래 수학식을 참조하면 마커의 위치 벡터들

및

로부터 주방향 벡터

를 구할 수 있다.The position vectors of the markers

And

The position vector of the pointing position

Can be obtained. Then, from the center point of the position of the markers, it is spaced by h in the normal direction. vector

Is the plane normal vector formed by the positions of the markers. Then, referring to the following equation, the position vectors of the markers

And

Lt; RTI ID = 0.0 &

Can be obtained.

를 하나 이상에 대해 구하고, 원래 3D 데이터가 구축된 기준 좌표계에서의 벡터와 비교하면 벡터 연산을 이용하여 좌표계 간의 변환 벡터

를 구할 수 있다. 이

를 이용하여 오브젝트 좌표계를 기준 좌표계로 변환할 수 있고, 반대로

의 역인

을 이용하여 기준 좌표계 상의 플래닝 가이드를 현실의 오브젝트 좌표계 쪽으로 변환할 수도 있다.As described above,

Is compared with the vector in the reference coordinate system in which the original 3D data is constructed, and then the transformation vector between the coordinate systems

Can be obtained. this

The object coordinate system can be converted into the reference coordinate system, and conversely,

Inverse of

The planning guide on the reference coordinate system can be converted to the actual object coordinate system.

4 shows a light curing unit control apparatus 400 according to an embodiment.

The light curing device control apparatus 400 according to one embodiment can determine whether the bracket is appropriately positioned on the tooth based on the calibration plan. Further, as a result of the determination, it is possible to control the light source to emit ultraviolet light when it is properly positioned.

To this end, the light curing unit control apparatus 400 may include a processing unit 410 and a control unit 420.

The processing unit 410 determines the activation of the light curing unit based on the position of the bracket with respect to the teeth. That is, the processing unit 410 can determine the activation of the light curing unit when the position of the bracket with respect to the teeth meets a predetermined standard. For example, the calibration position set in the tooth according to the calibration plan can be predetermined, and the processing unit 410 can determine whether the bracket has met the predetermined criteria by determining whether it is properly positioned at the calibration position.

Specifically, when the position of the calibration position set in the tooth and the position of the bracket are overlapped by more than the threshold value, the processing unit 410 can judge that it meets the predetermined standard. In addition, the processing unit 410 may determine that the calibration position and the position of the bracket set in the tooth meet an error that is less than the threshold value and meet the predetermined criteria.

When the light curing unit is activated, the control unit 420 controls the light curing unit to irradiate ultraviolet rays to the bracket in response to the control signal. For example, the control unit 420 may control at least one of the irradiation amount and the irradiation time according to the control signal to control the light curing unit to irradiate ultraviolet rays.

The control signal may be generated by a switching module 430 that is connected to the light curing unit by wired / wireless connection.

In particular, the generation of the control signal can be controlled according to the switching module 430, which is on / off controlled by a foot switch.

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

5 is a flow chart illustrating a method of operating the orthodontic appliance according to one embodiment.

The operation method or the orthodontic guide method of the orthodontic appliance according to an exemplary embodiment of the present invention generates the matching information between the guide information and the dental image including the bonding position of the bracket according to the orthodontic planning (step 501).

For example, a tooth calibration guide method may identify a plurality of points associated with a tooth in an input image, and generate positions of the identified points with the matching information. In addition, the characteristic points included in at least one of the gums and the teeth can be utilized as points. 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.

Further, the tooth calibration guide method can overlap the tooth information with the guide information based on the generated matching information (step 502). Thereafter, the tooth calibration guide method outputs a matching process between the bracket and the guide information (step 503). For example, the orthodontic guide method shows the overlap rate between the bracket and the guided bonding position in%, and the practitioner can improve the accuracy of the bonding by confirming the displayed overlap rate and using it to position the bracket .

6 is a flowchart showing an operation method of the light curing unit control apparatus according to one embodiment.

The operation method of the light curing unit control device or the method of controlling the light curing unit according to the embodiment confirms the position of the bracket with respect to the tooth (Step 601). The calibration position set on the tooth may be predetermined according to the calibration plan, and the method of controlling the light curing unit according to an embodiment may monitor the relative position of the calibration position determined according to the calibration plan and the bracket to be tracked in real time.

Next, the light curing 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, it is determined whether or not the calibration position set in the tooth and the position of the bracket overlap with the threshold value or not based on the calibration plan, or whether the set calibration position and the position of the bracket have an error below the threshold value, It is possible to judge whether or not the predetermined criterion is met.

As a result of the determination in step 602, the control method of the light curing unit may control the light curing unit to be activated when the position of the bracket with respect to the identified tooth meets a predetermined standard (step 603).

That is, the control method of the light curing unit can control the light curing unit to be activated when the set calibration position and the position of the bracket are overlapped by more than the threshold value, or when the set calibration position and the position of the bracket have errors below the threshold value.

On the other hand, if it is determined in step 602 that the position of the bracket with respect to the identified tooth does not meet the predefined criteria, the method may be branched to step 601 to check the position of the bracket with respect to the tooth have.

That is, when the set calibration position and the position of the bracket overlap below the threshold value, or if the set calibration position and the position of the bracket have an error of more than the threshold value, the process goes to step 601 and the position of the bracket with respect to the tooth Can be performed.

Only when the photopolymerizable group is activated, the photopolymerizable group can irradiate ultraviolet rays.

When the light curing unit is activated, a control signal is received from the switching module (step 604), and the light curing unit is controlled to irradiate ultraviolet rays to the bracket 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 apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable array (FPA) A programmable logic unit (PLU), a 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 execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media 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 machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (25)

A tooth calibration guide device implemented by a computing terminal,
A processor for generating matching information between a guide and a tooth image including an adhesion position and a direction of the bracket according to the orthodontic planing; And
Based on the generated matching information, a control unit for overlapping the guide with the tooth image,
The orthodontic appliance comprising: The method according to claim 1,
Wherein the bracket is attached to the bracket and the bracket is attached to the bracket. The method according to claim 1,
Wherein a position and direction of the bracket are indicated by the 3D image of the bracket as an image realized as an augmented reality at a position where the bracket is to be adhered. The method according to claim 1,
Wherein the guide further comprises a display providing an overlapped tooth image,
Wherein the display comprises a spectacles wearable device having a camera. The method according to claim 1,
Wherein the guide further comprises a display providing an overlapped tooth image,
Wherein the display comprises a spectacles wearable device having a camera.
Wherein the display providing the information comprises a camera and an external display associated with the camera. The method according to claim 1,
Wherein 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 according to claim 6,
Wherein the plurality of points are feature points included in at least one of the gums and the teeth. The method according to claim 6,
Wherein at least one of the plurality of points corresponds to a radiopaque material disposed in the gum or tooth. The method according to claim 6,
Wherein at least one of the plurality of points corresponds to a depression in the gum or tooth or a depression in the gum. The method according to claim 6,
Wherein at least one of the plurality of points corresponds to at least one of a tattoo point and a color tape to be pre-colored on the gums or teeth. A tooth calibration guide device implemented by a computing terminal,
A processor for calculating an error between the position of the bracket adhered to the tooth correction plan and the position of the bracket in the tooth image; And
A signal generator for generating a control signal for providing a notification to the operator when the error is equal to or less than a threshold value,
The orthodontic appliance comprising: 12. The method of claim 11,
Wherein the notification includes providing a visual indicator implemented as an augmented reality through a display. 12. The method of claim 11,
Wherein the notification includes an effect sound provided to the practitioner. CLAIMS 1. A light curing unit control device implemented by a computing terminal,
A processor for determining the activation of the light curing unit based on the position of the bracket relative to the tooth; And
A control unit for controlling the light curing unit to irradiate light to the bracket in response to a control signal when the light curing unit is activated,
And a light control unit. 15. The method of claim 14,
Wherein,
Wherein the activation of the light curing unit is determined when the position of the bracket with respect to the tooth meets a predetermined criterion. 15. The method of claim 14,
Wherein,
And judges that the tooth calibration position and the position of the bracket are overlapped with each other by a threshold value or more according to the orthodontic treatment planning. 15. The method of claim 14,
Wherein the control signal is generated by a switching module connected to the light curing unit by wire or wire. 18. The method of claim 17,
The switching module includes:
Off control by a foot switch and controls the generation of the control signal in accordance with the on-off control. 18. The method of claim 17,
The switching module includes:
And said control signal is generated in response to a pre-designated speech signal. 15. The method of claim 14,
Wherein,
And controls the light curing unit to control at least one of the irradiation amount and the irradiation time according to the control signal to irradiate the light. CLAIMS 1. A method of operating a tooth calibration guide device implemented by a computing terminal,
Generating matching information between a guide and a tooth image including an adhesion position of the bracket due to tooth correction planning; And
Based on the generated matching information, overlapping the guide with the tooth image
Wherein the method comprises the steps of: A method of controlling a light curing unit implemented by a computing terminal,
In the processing section, if the position of the bracket with respect to the teeth conforms to a predetermined criterion, determining activation of the light curing unit; And
Controlling the light curing unit to irradiate light to the bracket in response to a control signal when the light curing unit is activated,
And controlling the light amount of the light. A tooth calibration guide device implemented by a computing terminal,
A processor for generating matching information between the 3D image of the tooth including the root and the tooth image; And
Based on the generated matching information, a control unit for overlapping an image representing the tooth root with the tooth image,
The orthodontic appliance comprising: 24. The method of claim 23,
Wherein the processor extracts a 3D image of the tooth from a CT image and identifies a tooth in the tooth image corresponding to the 3D image of the tooth to generate the matching information. 24. The method of claim 23,
The processor creates a screw placement position guide in accordance with the orthodontic planning,
Wherein the controller overlaps the screw placement position guide with the tooth image.

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