KR20200088976A - Method and apparatus for dental implant simulation - Google Patents

Abstract

A method for simulating an implant procedure in advance is presented. According to an embodiment of the present invention, since major decisions to be considered during implant placement are automatically determined according to an analysis result of a dental panoramic image, inconvenience that a user must directly set an implantation site while the user views the dental panorama image and various problems caused by mistakes or inaccuracies in manipulation can be reduced.

Description

METHOD AND APPARATUS FOR DENTAL IMPLANT SIMULATION

The present invention relates to an implant simulation method and apparatus. More specifically, the present invention relates to an implant simulation method and an apparatus for automatically determining and suggesting matters related to implant placement through analysis of a panoramic image.

A software-based implant simulation technique is provided to plan the implant placement prior to the implant procedure. According to the conventional implant simulation technology, there is a burden to perform the simulation after the user manually sets the implant placement position, angle, and the diameter and angle of the fixture.

Korean Registered Patent No. 1723652

The technical problem to be solved by the present invention is an implant simulation method including a function of analyzing a panoramic image of a patient in software and automatically determining some decisions related to implant placement according to an analysis result and presenting it to a user. Is to provide a device.

Another technical problem to be solved by the present invention is to provide an implant simulation method and apparatus for automatically determining implant placement-related decisions based on an appropriate criterion in consideration of various defect states of a tooth.

Another technical problem to be solved by the present invention is that provisions regarding automatically implant placement are presented, so that automatically determined matters can be simulated after being adjusted according to user judgment, and the history adjusted by the user is collected on the server. It is to provide an implant simulation method and an apparatus in which an automatic determination method related to implant placement is automatically updated as the adjusted history is accumulated.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Implant simulation method according to an embodiment of the present invention for solving the above technical problem is a step of obtaining a dental panoramic image, and through the analysis of the dental panoramic image, the gum bone boundary is set in the dental panoramic image, And automatically determining a fixture length of the implant placement position based on the gum bone boundary of the implant placement position and the root position of the teeth adjacent to the implant placement position.

In one embodiment, the step of obtaining the tooth panoramic image includes: analyzing the tooth panoramic image through tooth segmentation logic to obtain a tooth region partition line, and referring to the tooth region partition line, a gap between teeth is a reference value. It may include the step of automatically determining the implant placement position by identifying the site exceeding. At this time, the step of automatically determining the implant placement position may include automatically determining a fixture placement angle to be parallel to a tooth axis of a mesial side adjacent to the implant placement position.

In one embodiment, the step of automatically determining the fixture placement angle includes: when the mesial position of the implant placement position is not a natural value, the angle of the tooth axis of the mesial placement position of the implant placement position and the centrifugation of the implant placement position ( The intermediate value of the angle of the tooth axis of the distal) side adjacent value may include automatically determining the fixture placement angle.

In one embodiment, the step of automatically determining the fixture length of the implant placement position may include determining a 1 mm inner point at the upper end of the fixture at the gum bone boundary at the implant placement position.

In one embodiment, the step of automatically determining the fixture length of the implant placement position includes: a first edge of a centrifugal apical direction of a rectangle formed by a tooth region partition line of a proximal adjacent tooth of the implant placement position, and of the implant placement position The method may include determining a center point of a root line between the second corners of the mesial and apical roots of the quadrangle formed by the tooth region partition line of the centrifugal side adjacent teeth as the lower end of the fixture.

In one embodiment, the step of automatically determining the fixture length of the implant placement position includes: a center point of a square apical border formed by a tooth region partition line of a proximal adjacent tooth of the implant placement position and a distal side adjacent to the implant placement position. The horizontal midline between the center points of the quadrangular root contours formed by the tooth region partition lines of the teeth, and the centrifugal side first corners of the squares formed by the tooth region partition lines of the apical adjacent teeth and the distal side adjacent teeth of the implant placement position. And determining a point at which the apical straight line meets between the second corners in the apical apical apical direction of the quadrangle formed by the tooth region partition line as the lower end of the fixture.

In one embodiment, the step of automatically determining the fixture length of the implant placement position duplicates the square formed by the tooth region partition line of the mesial adjacent position of the implant placement position when the distal adjacent position of the implant placement position is missing. And disposing the duplicated rectangle such that the distal apical apical edge of the duplicated square and the distal apical apical edge of the square formed by the tooth region partition line of the mesial abutment coincide. And determining a center point of the square root direction outline as a lower end of the fixture.

In one embodiment, the step of setting the gum bone boundary line in the tooth panoramic image includes: identifying a closed curved surface formed between the first tooth, the second tooth, and the gum, and determining a gum side center point of the closed curved surface And forming the gum bone boundary line between the center points.

In one embodiment, the method for simulating an implant includes displaying information on the automatically determined items on a screen, receiving a user input for adjusting the automatically determined items, and adjusting items according to the user input. The method may further include transmitting information on the server device. In addition, the implant simulation method may further include a step of updating the criteria of the automatic determination using information on the adjustment.

According to another embodiment of the present invention, a network interface for receiving data of a tooth panoramic image, storage for storing implant simulation software, a memory in which a plurality of instructions are loaded according to execution of the software, An implant simulation apparatus including a processor that executes the plurality of instructions is provided. The plurality of instructions, based on the analysis of the tooth panoramic image, the instruction in which the gum bone boundary line is set in the tooth panoramic image, and the gum bone boundary line of the implant placement location and the tooth root position adjacent to the implant placement location As a result, it includes an instruction for automatically determining the fixture (fixture) length of the implant placement position.

According to another embodiment of the present invention, a step of obtaining a panoramic image of a tooth, and analyzing the tooth panoramic image, setting a gum bone boundary in the tooth panoramic image, and the gum bone boundary of the implant placement position and the An implant simulation computer program is provided in which a step of automatically determining a fixture length of an implant placement position is performed based on a root position of a tooth adjacent to an implant placement position.

1A to 1C are diagrams for explaining a problem of a conventional implant simulation software.
2 is a block diagram of an implant simulation system according to an embodiment of the present invention.
3 is a flowchart of an implant simulation method according to another embodiment of the present invention.
4 is a view for explaining a tooth segmentation (segmentation) that can be performed in some embodiments of the present invention.
5 is a diagram for explaining gum bone boundary extraction that may be performed in some embodiments of the present invention.
FIG. 6 is a diagram for automatically determining a fixture placement position based on a result of tooth segmentation that may be performed in some embodiments of the present invention.
7 is a view for explaining an automatic determination of a fixture placement angle based on a result of tooth segmentation that may be performed in some embodiments of the present invention.
8 to 10 are diagrams for explaining an automatic determination of a fixture length based on a result of tooth segmentation that may be performed in some embodiments of the present invention.
11 is a hardware configuration diagram of an implant simulation apparatus according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and only the embodiments allow the publication of the present invention to be complete, and general knowledge in the technical field to which the present invention pertains. It is provided to fully inform the holder of the scope of the invention, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same components throughout the specification.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless specifically defined. The terminology used herein is for describing the embodiments and is not intended to limit the present invention. In the present specification, the singular form also includes the plural form unless otherwise specified in the phrase. Hereinafter, some embodiments of the present invention will be described with reference to the drawings.

According to some embodiments of the present invention, the implant placement position, the placement angle, length and diameter of the fixture are automatically determined through the analysis result of the tooth panoramic image, and the determined result is displayed to the user. Accordingly, the user does not need to directly input the implant placement position, the fixture placement angle, length, and diameter. Referring to Figures 1a to 1c to describe the operation to be performed in the conventional implant simulation process, the convenience of the present invention will be clearly understood.

FIG. 1A shows a result of designating a fixture placement position 12 by designating several points 11 in a panoramic image. In addition, FIG. 1B shows that when a model of the fixture 13 is to be modified, a separate dialog 14 is displayed by double-clicking the fixture, and the fixture 14 is modified in the dialog 14. In addition, FIG. 1C illustrates that a drag 14 operation is input to correct the position of the fixture, and a rotation icon 15 is displayed to correct the angle of the fixture.

As illustrated in FIGS. 1A to 1C, the conventional implant simulation method is focused on providing a GUI (Graphic User Interface) that allows a user to easily input various setting values, positions, and angles related to implant placement. have. Accordingly, the convenience of user operation is secured to some extent, but it is difficult to solve the problem in that it is essential to improve the GUI because it is difficult to input multiple settings at once. In addition, there is always a possibility that inaccurate settings can be made no matter how sophisticated the user operates. Some embodiments of the present invention fundamentally solve this problem and automatically determine the implant placement position, fixture placement angle, length, and diameter using only the analysis result of the panoramic image without any manipulation from the user, and The information is displayed to the user so that the implant operator can refer to the implant simulation process.

Next, with reference to Figure 2, the configuration and operation of the implant simulation system according to an embodiment of the present invention. The implant simulation system according to the present embodiment includes an imaging device 20 and an implant simulation device 100.

The imaging device 20 is a device that generates image data for grasping the arrangement of teeth of a patient, and may be, for example, a dental panoramic imaging device. In particular, the imaging device 20 may be a device that generates 2D panorama image data.

The implant simulation apparatus 100 receives the data of the tooth panorama image from the imaging device 20, sets the tooth region partition line and the gum bone boundary line to the tooth panorama image through analysis of the tooth panorama image, and the tooth region The partition line and the gum bone boundary are used to automatically determine at least a portion of the implant placement position, fixture diameter, fixture placement angle, and fixture length. The automatic determination criteria, etc. performed by the implant simulation apparatus 100 will be described in more detail with reference to FIGS. 3 to 10.

Next, the implant simulation apparatus 100 automatically outputs information on the determined matter. The automatically determined information may be output in various ways, such as displaying GUI objects on a display, displaying holograms, displaying overlay objects based on Augmented Reality (AR) technology, and outputting voice.

In addition, according to an embodiment, the implant simulation apparatus 100 provides the information on the automatically determined matter to the implant treatment guide apparatus 30, and automatically establishes the implant treatment plan based on 3D information. It is also possible to make the decision reflected.

Matters that are automatically determined by the implant simulation device 100 are recommendations, and the user will be able to adjust the automatically determined items. However, adjustment to the automatically determined matter can be interpreted as a user who is an expert, such as a dentist, determines that the automatically determined matter is not appropriate, and if these cases accumulate, the logic used for automatic determination needs to be modified. There will be Accordingly, in one embodiment, the implant simulation apparatus 100 may transmit information about the adjustment according to the user input to the simulation result storage server 40 when a user input for adjustment for the automatically determined matter is received. .

As a result of the simulation, the storage server 40 collects information on adjustments received from the plurality of implant simulation devices 100, and uses the information on the adjusted adjustments to update the criteria of the automatic determination, and updates The standard can be distributed to the implant simulation apparatus 100. Accordingly, the implant simulation apparatus 100 may update the implant determination-related automatic determination logic reflecting the judgment by a plurality of experts to the latest state.

The implant simulation system according to the present exemplary embodiment is not implemented only with the device configuration shown in FIG. 2, and the plurality of devices of FIG. 2 may be combined into one physical device as necessary, or conversely, each device of FIG. 2 may be provided with multiple devices It could be implemented by dividing it into physical devices. For example, the imaging device 20 and the implant simulation device 100 may be implemented as one device, or the implant simulation device 100 and the implant procedure guide device 30 may be implemented as one device.

Next, an implant simulation method according to another embodiment of the present invention will be described with reference to FIG. 3. The method according to the present embodiment may be executed by a computing device or a dental imaging device equipped with a computing means. For example, the method according to the present embodiment may be executed by the implant simulation apparatus 100 described with reference to FIG. 2. Hereinafter, in the description of the present embodiment, if the subject of each operation is omitted, it will be understood that it can be performed by the above-described device. In addition, it is needless to say that the method according to the present embodiment may change the execution order of each operation within a range in which the execution order can be logically changed as necessary.

In step S100, a photographed image is obtained. It has been already described that the image may be, for example, a two-dimensional tooth panoramic image. The image is not limited to the type as long as the entire tooth arrangement of the patient is shown.

In step S102, data of the image is input to a tooth segmentation logic to obtain a partition line of the tooth region of the image. As a result of the tooth segmentation, the tooth area partition line 51 as shown in FIG. 4 may be formed. Regarding the tooth segmentation method, various documents such as "A Problem of Automatic Segmentation of Digital Dental Panoramic X-Ray Images for Forensic Human Identication", Robert Wanat, 2011, etc. can be referred to. However, it is preferable that an algorithm of a method in which the tooth segmentation line forms a tooth area partition line 51 so that a tooth-side partition line is formed to close the tooth area in a box shape.

In step S104, the data of the image is input to the gum bone boundary formation logic to obtain the gum bone boundary of the image. 5, the gum bone boundary line 53 is shown. The gum bone boundary may be obtained by analyzing information such as the brightness value of each pixel belonging to the image.

FIG. 5 shows, for example, that the gum bone boundary line 53 may be formed by connecting the gum-side center point 52 of the closed curved surface 54 formed between each tooth and between the gums. The closed curved surface 54 may be formed using a contour of a tooth and an outline of a gum formed based on the brightness value of a pixel. For example, by forming the outline at a position where a difference in brightness value greater than a reference value occurs, an outline of the tooth and an outline of the gum may be formed.

Among the contours of the closed curved surface 54, the apical contour is divided, and a central point of the apical contour may be determined as a gum-side central point 52. After the apical contour is flattened in a straight line, the center point on the flattened straight line may be determined as the gum-side center point 52.

In FIG. 5, the gum side center points 52 are shown to be connected in a straight line, but of course, the gum side center points 52 may be connected in a curved line.

In step S106, the implant placement position is automatically determined by identifying a region where a gap between teeth exceeds a reference value by referring to the tooth region partition line. An area where a tooth is missing or an area where a tooth is lost will be determined as an implant placement position, and the implant placement position can be determined by referring to the tooth region partition line. This will be described in more detail with reference to FIG. 6.

The tooth region partition line forms a closed curved surface pointing to the region occupied by the tooth. The closed curved surface may be formed in a square shape as shown in FIG. 6. At this time, the width may be determined for each rectangle. For example, the width of the rectangle located between the mesial-side rectangle 58 and the centrifugal-side rectangle 57 can be calculated as the average value of the length of the root-side contour 55 and the length of the root-side contour 56. There will be.

Then, the presence or absence of a tooth may be determined for each square. For example, as illustrated in FIG. 6, when an empty area 59 having a brightness value equal to or less than a predetermined value occupies a proportion of a defect level or more among the entire area of the rectangle, it may be determined that there is no tooth inside the rectangle. Will be able to. In addition, the defect reference value may be a value assigned to each tooth number. This may be understood that the length ratio or the width ratio of the root and crown is different for each tooth number.

If there is a rectangle in which the tooth does not exist inside and its width exceeds a reference value, the area of the rectangle may be determined as a region where the tooth is missing or a region where the tooth is lost. Therefore, it is judged that the area where the width exceeds the reference value as a rectangle in which no tooth exists inside is determined as the position where the implant should be placed.

If there is a rectangle with no teeth inside, and the width is less than the reference value, the area of the rectangle may be judged as having a slight gap between teeth, and such a rectangle is not determined as an implant placement position. However, as an exception, it may be determined that the tooth is a missing or missing part in consideration of the number of squares, even if the width is less than a reference value as a square without a tooth inside. In this case, a graphic object indicating that the portion is a tooth defect/loss having a width less than the reference value may be displayed at the corresponding location.

In addition, the tooth number indicated by each square may be grasped using the arrangement order of each square constituted by the tooth region partition line. Therefore, as a result, the implant placement position and the tooth number that requires the implant can be grasped. Accordingly, the fixture diameter corresponding to the tooth number may be automatically determined in step S108. To this end, a table in which the default fixture diameter is matched for each tooth number may be stored.

Returning to FIG. 3 again, description is made. In step S110, the implant placement angle is determined in consideration of the adjacent tooth angle. The placement angle may be the most important guide for natural teeth existing in the mesialis. Thus, as shown in FIG. 7, the implantation angle 62 of the fixture 61 can be automatically determined to be parallel to the tooth axis 60 of the mesial adjacent position of the implant placement position.

In one embodiment, the tooth axis 60 of the adjacent teeth may be determined as a straight line connecting the central points of each of the root-side outline and the crown-side outline of the rectangle 58 formed by the tooth area partition line of the adjacent tooth.

However, depending on the condition of the patient's teeth, the proximal adjacent value of the implant placement position may not be a natural tooth and the implant procedure may be completed. The determination of whether each tooth is a natural tooth may be performed based on the brightness of the tooth area. When the mesial position of the implant placement position is not a natural value, the implantation angle of the fixture to be placed at the implant placement position may be determined by considering both the axis of the mesial proximity and the axis of the centrifugal proximity. For example, as the intermediate value between the angle of the tooth axis of the proximal adjacent tooth of the implant placement position and the angle of the tooth axis of the distal side adjacent tooth of the implant placement location, the fixture placement angle may be automatically determined.

If the mesial abutment of the implant placement position is not a natural tooth, it will be difficult to see that the axle of the mesial abutment (implant) is the same as the tooth when it is a natural tooth. Therefore, it is difficult to directly apply the implantation angle along the tooth axis of the adjacent abutment to the implant placement position. Therefore, as in the above embodiment, when the mesial position of the implant is placed in the mesial position, the implantation angle of the fixture to be implanted in the implant implantation position is determined by considering both the axis of the mesial implant and the axis of the centrifugal neighbor. It is preferred. At this time, it is assumed that the adjacent centrifugal side is a natural tooth.

If, when both the proximal and distal neighbors of the implant placement position are implants, the implantation angle of the implant placement position is an angle of a straight line connecting the central point of each of the apical contour line and the crown contour line of the implant placement position. It may be set equal to.

Returning to FIG. 3 again, in step S112, the fixture length is automatically determined in consideration of the gingival bone boundary and the adjacent tooth position. A method of automatically determining the fixture length will be described with reference to FIGS. 8 to 10.

In some embodiments of the present invention, the upper end of the fixture may be set to touch an imaginary line formed inside by a predetermined separation depth 65 at the gum bone boundary at the implant placement position. As a result of comparative studies of various cases, it was determined that the optimal separation depth according to the method of setting the gum bone boundary line with reference to FIG. 5 is 1 mm. This is to prepare for the possibility of partial loss of gum bone over time after the fixture is placed.

Since the reference line where the upper end of the fixture is located has been set, the length of the fixture may be determined by determining the position of the lower end of the fixture. In determining the upper end and the lower end of the fixture, it is needless to say that the placement angle of the fixture determined according to the previously described embodiment should be maintained. Therefore, by determining the position of the lower end of the fixture, the position of the upper end located inside the gap depth than the gum bone boundary will also be automatically determined. Some embodiments related to this will be described with reference to FIGS. 8 to 10.

The first embodiment will be described with reference to FIG. 8. In this embodiment, the first edge 64 of the distal side apical side of the rectangle 58 formed by the tooth region partition line of the mesial region adjacent to the implant placement location, and the tooth region partition line of the distal side adjacent tooth of the implant placement location The central point 66 of the apical straight line 67 between the second corners 63 in the apical apical direction of the square 57 to be formed may be determined as the lower end of the fixture 61.

As already described, the placement angle 62 of the fixture 61 has already been determined. Accordingly, the upper end of the abnormality 61 of the lower end 66 of the fixture 61 is also determined as one of the points inside the separation distance 65 of the gum bone boundary 53. Accordingly, the exact total length of the fixture 61 can be determined.

The second embodiment will be described with reference to FIG. 9. In the present embodiment, the center point 63a of the apical border of the rectangle 57 formed by the tooth area partition line of the mesial region adjacent to the implant placement position and the rectangle formed by the tooth area partition line of the centrifugal adjacent tooth of the implant placement position A horizontal middle line 66b between the center points 64a of the root line outline of (58) is obtained. It will be understood that the horizontal middle line 66b is a horizontal straight line located between the horizontal reference line 63b of the center point 63a and the horizontal reference line 64b of the center point 64a.

Next, the centrifugal side root direction of the square 58 formed by the tooth region partition line of the mesial side adjacent teeth and the mesial side root direction of the square 57 formed by the first region of the tooth region partition line of the centrifugal adjacent tooth of the implant placement position A straight root 67 between the second edges is obtained.

The lower end end 66a of the fixture 61 is the intersection of the horizontal midline 66b and the apical straight line 67.

As already described, the placement angle 62 of the fixture 61 has already been determined. Accordingly, the upper end of the abnormality 61 of the lower end 66a of the fixture 61 is also determined as one of the points inside the separation distance 65 of the gum bone boundary 53. Accordingly, the exact total length of the fixture 61 can be determined.

The third embodiment will be described with reference to FIG. 10. This embodiment can be selected in such a way that the length of the fixture is automatically determined when there is only one adjacent value of the implant placement position. As shown in FIG. 10, an operation performed when only the mesial neighbor of the implant placement position is present will be described.

In this embodiment, the square 58 formed by the tooth region partition line of the proximal adjacent tooth of the implant placement position is duplicated. 10, the duplicated rectangle 58a is shown.

Next, the replicated rectangle 58a so that the distal-side apical edge 58c of the replicated rectangle 58a and the distal-side apical edge 58c of the rectangle 58 formed by the tooth region partition line of the mesial-adjacent tooth coincide. ), and in this state, the center point 66c of the root direction outline of the duplicated rectangle 58a may be determined as the lower end of the fixture 61.

As already described, the placement angle 62 of the fixture 61 has already been determined. Therefore, the upper end of the abnormality of the fixture 61, where the lower end 66c of the fixture 61 is specified, is also determined as one of the points inside the separation distance 65 of the gum bone boundary 53. Accordingly, the exact total length of the fixture 61 can be determined.

Returning to FIG. 3 again, description is made. According to the method described so far, when the implant placement position (tooth number) is first determined, the diameter and length of the fixture to be implanted and its placement angle are automatically determined accordingly. Data for the automatically determined matter is generated in this way, and the generated data may be output in a manner that is intuitively understood by the user. For example, the fixture according to the determined matter is overlaid on the panoramic image as a GUI object, displayed in the form of a hologram, or displayed as an overlay object based on Augmented Reality (AR) technology, or using speech synthesis technology. Thus, information about the fixture may be output.

Since step S114, it has been already described that the user can adjust the length of the fixture, adjust the placement angle of the fixture, or adjust the diameter of the fixture.

These adjustments are sent to the server, and if at least some setpoint needs to be updated as the adjustments are collected at the server, such an update may be provided to the implant simulation device.

In addition, if the frequency of the adjustment and the size of the adjustment exceed the reference value, an administrator alarm for this may be automatically generated. The above alarm means that the automatic implant placement function causes inconvenience to the user. In this case, a predefined command is transmitted to the implant simulation device according to the operation of the administrator, and the implant simulation device receiving the command may temporarily turn off the implant placement automatic setting function.

The methods according to the embodiments of the present invention described so far can be performed by executing a computer program embodied in computer readable code. The computer program may be transmitted from a first electronic device to a second electronic device through a network such as the Internet and installed in the second electronic device, and thus used in the second electronic device. The first electronic device and the second electronic device include both server devices, physical servers belonging to a server pool for cloud services, and fixed electronic devices such as desktop PCs.

Hereinafter, the configuration and operation of the implant simulation apparatus 100 according to another embodiment of the present invention will be described with reference to FIG. 11. 11, the implant simulation apparatus 100 according to the present embodiment includes a memory 103, a processor 103 for executing instructions loaded into the memory, a storage 104, and a network interface 105. do.

The network interface 105 receives data of the tooth panorama image from an external device such as a panoramic image capture device, and provides the received tooth panorama image data to the storage 104 to be stored in the storage 104, or the received tooth panorama It is provided to the memory 103 so that an implant simulation using an image is performed. Accordingly, the memory 103 loads the tooth image data 131.

In one embodiment, the implant simulation apparatus 100 may also incorporate a photographing apparatus for generating data of the tooth panoramic image.

The storage 104 stores the binary 143, which is an executable file of the implant simulation software. The binary 143 may be stored in the storage 104 at the time of manufacture of the implant simulation apparatus 100 or may be stored in the storage 104 after the manufacture of the implant simulation apparatus 100 by the user.

The storage 104 may further store user preference simulation setting data. For example, in automatically determining the fixture length, data on whether the embodiment described with reference to FIG. 8 is preferred or the embodiment described with reference to FIG. 9 is stored in the storage 104, and FIG. When the implant simulation method described with reference is executed, preferred simulation setting data may be reflected.

The storage 104 may further store clinical case data 142. The clinical case data 142 points to cases in which the implant placement setting has been adjusted by another user. In one embodiment, the implant simulation software additionally provides a GUI for querying the clinical case data 142, or adds a function to present a case similar to a tooth panorama image currently being simulated in the clinical case data 142 to the user Will be able to provide.

The memory 103 may store implant simulation instructions 133 that are loaded as the implant simulation software is executed.

The implant simulation instructions 133 analyze the tooth panoramic image through the tooth segmentation logic to obtain a tooth region partition line, and refer to the tooth region partition line to identify a region where a gap between teeth exceeds a reference value. By automatically determining the implant placement position, through the analysis of the tooth panorama image, the gum bone boundary is set to the tooth panorama image, and the implant placement angle is parallel to the tooth axis of the mesial side adjacent to the implant placement position. An instruction to automatically determine the fixture length of the implant placement location based on the gum bone boundary line of the implant placement location and the root location of the tooth adjacent to the implant placement location, to automatically determine the length of the fixture at the implant placement location. An instruction to display, an instruction to receive a user input for adjustment of the automatically determined matter, an instruction to transmit information about the adjustment according to the user input to the server device, and using the information about the adjustment, the automatic It may include one or more of the instructions for updating the criteria of the decision.

In the memory 103, the implant simulation result data 132 generated according to the execution result of the implant simulation instruction 133 is temporarily stored, and the implant simulation result data 132 is displayed through an output device such as a display (not shown). It may be displayed as information that can be recognized by the user.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. You will understand. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

Claims (13)

In the method performed by the computing device,
Obtaining a tooth panoramic image;
Through analysis of the tooth panorama image, a gum bone boundary line is set in the tooth panorama image; And
Automatically determining a fixture length of the implant placement position based on the gum bone boundary of the implant placement position and the root position of the teeth adjacent to the implant placement position,
Implant simulation method. According to claim 1,
The step of obtaining the tooth panoramic image,
Analyzing the tooth panoramic image through tooth segmentation logic to obtain a tooth region partition line; And
Comprising the step of automatically determining the implant placement position by identifying the portion of the gap between the teeth with reference to the reference to the tooth region partition line,
Implant simulation method. According to claim 2,
The step of automatically determining the implant placement position,
Automatically determining a fixture placement angle to be parallel to a tooth axis of a mesial side adjacent to the implant placement position,
Implant simulation method. According to claim 3,
The step of automatically determining the fixture placement angle,
When the mesial position of the implant placement position is not a natural value, the fixture placement is the intermediate value of the angle of the tooth axis of the mesial position adjacent to the implant placement position and the angle of the tooth axis of the distal adjacent position of the implant placement position. Automatically determining an angle,
Implant simulation method. According to claim 3,
The step of automatically determining the fixture length of the implant placement position,
In the gum bone boundary at the implant placement position, comprising the step of determining a 1mm inner point to the upper end of the fixture,
Implant simulation method. According to claim 3,
The step of automatically determining the fixture length of the implant placement position,
The first corner of the quadrangular distal side of the dental zone partition line formed by the tooth region partition line of the implant placement position, and the second corner of the quadrangular mesial tooth root region of the dental zone partition line of the implant placement location Determining the center point of the apical straight line between as the lower end of the fixture,
Implant simulation method. According to claim 3,
The step of automatically determining the fixture length of the implant placement position,
The horizontal midpoint between the center point of the square root-shaped outline formed by the tooth region partition line of the mesial position adjacent to the implant placement position and the center point of the square root-direction outline formed by the tooth region partition line of the centrifugal adjacent tooth of the implant placement position. The apical side between the line and the first edge of the quadrilateral side of the square formed by the tooth region partition line of the mesial abutment and the second edge of the square of the mesial side of the square formed by the tooth region partition line of the centrifugal side of the implant placement position. Determining a point at which the straight line meets as the lower end of the fixture,
Implant simulation method. According to claim 3,
The step of automatically determining the fixture length of the implant placement position,
Duplicating a square formed by a tooth region partition line of the mesial adjacent position of the implant placement position when the distal adjacent position of the implant placement position is missing;
The duplicated rectangle is arranged such that the edge of the mesial side root of the duplicated square coincides with the edge of the centrifugal side of the square formed by the tooth region partition line of the mesial neighbor, and in this state, the root direction of the duplicated square Determining the center point of the outline as the lower end of the fixture,
Implant simulation method. According to claim 1,
The step of setting the gum bone boundary line in the tooth panoramic image,
Identifying a closed curved surface formed between the first and second teeth and the gums;
Determining a center point of the gum side of the closed curved surface; And
And forming the gum bone boundary line between the center points,
Implant simulation method. According to claim 1,
Displaying information on the automatically determined items on a screen;
Receiving a user input for adjustment to the automatically determined matter; And
Further comprising the step of transmitting information about the adjustment according to the user input to the server device,
Implant simulation method. The method of claim 10,
Further comprising, by using the information on the adjustment, the criteria of the automatic determination is updated,
Implant simulation method. A network interface for receiving data of the tooth panoramic image;
Storage for storing implant simulation software;
A memory in which a plurality of instructions are loaded according to the execution of the software;
It includes a processor for executing the plurality of instructions,
The plurality of instructions,
An instruction in which a gum bone boundary line is set in the tooth panorama image through analysis of the tooth panorama image; And
Including an instruction to automatically determine the fixture (fixture) length of the implant placement position, based on the gum bone boundary of the implant placement position and the root position of the tooth adjacent to the implant placement position,
Implant simulation device. In combination with computing devices,
Obtaining a tooth panoramic image;
Through analysis of the tooth panorama image, a gum bone boundary line is set in the tooth panorama image; And
The step of automatically determining the fixture length of the implant placement position is performed based on the gum bone boundary line of the implant placement position and the root position of the tooth adjacent to the implant placement position.
Recorded on a computer-readable recording medium,
Implant simulation computer program.

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