KR102418898B1 - Method for Modifying Occlusal Surface of Prosthesis and Computing Device for Performing the same - Google Patents

Abstract

Using the occlusion information of the crown set in the library of prosthetics and the occlusion information of the adjacent teeth corresponding to the abutment, the surface contact between the crown and the antagonist (Surface) Contact) can be set automatically to provide a crown with a more balanced posterior occlusion.

Description

Method for Modifying Occlusal Surface of Prosthesis and Computing Device for Performing the same

The present invention relates to a method for modifying the occlusal surface of a prosthesis and a computing device for performing the same, and more particularly, to a surface contact between a crown and an antagonist using occlusal information of a crown set in a library and occlusal information of adjacent teeth corresponding to an abutment. It relates to a method and apparatus for automatically setting (Surface Contact).

Conventionally, when a library model of a crown is placed on a patient's tooth model using a tool provided in 3D CAD software, a crown is designed by manually placing it by manipulation by a user, or automatically placing it by a computer algorithm. this was provided

However, such a conventional method may not be an optimal design because there is no consideration of the contact with the opposing teeth when the library model of the crown is placed on the patient's tooth model. In addition, the conventional method has a problem in that it is impossible to analyze and measure the occlusion of the adjacent teeth in the occlusion where the relationship with the adjacent teeth is important, so that the occlusion state of the adjacent teeth cannot be reflected when designing the crown.
Prior art document: Registered Patent Publication No. 10-1854732 (2018.05.04.)

The present invention uses the occlusal information of the crown set in the library and the occlusal information of the adjacent teeth corresponding to the abutment to make a surface contact (Surface) between the crown and the antagonist. Contact) automatically setting method and device are provided.

In addition, the present invention provides a method and apparatus for creating a new occlusal point through a separate user interface for the occlusal surface of the crown to which the surface contact with the antagonist is automatically set.

In addition, the present invention provides a method and apparatus for adjusting the occlusal strength between the occlusal point of the crown and the antagonist by disposing a separate user interface in proximity to the occlusal point of the crown in contact with the antagonist.

A method of modifying an occlusal surface of a prosthesis according to an embodiment of the present invention comprises: displaying an abutment in the patient's tooth data and adjacent teeth corresponding to the abutment on a display; placing a crown whose external shape is determined through occlusion information of the crown set in the library on the abutment; and providing a crown with a modified occlusal surface through occlusion information of adjacent teeth corresponding to the abutment teeth.

The providing of the crown may include: displaying the ridges of the selected adjacent teeth and the junctions existing within the ridges of the selected adjacent teeth corresponding to the ridges at which the occlusal points are generated on the occlusal surface of the crown; and displaying the crown of which the occlusal surface is modified based on the occlusal information of the occlusal points existing within the ridges of the displayed adjacent teeth.

As the ridge of the adjacent teeth, a ridge existing in the same direction as the ridge at which the occlusal point is generated on the occlusal surface of the crown may be selected.

In the step of providing the crown, when a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, occlusal information of the selected occlusal point among the plurality of occlusal points is individually copied and the occlusal surface of the crown is changed by changing the occlusal information of the crown. can be modified.

In the step of providing the crown, when a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, the occlusal surface of the crown is modified by group copying occlusal information for all of the plurality of occlusal points and changing the occlusal information of the crown. can be

Verifies whether the occlusal information of each of the plurality of occlusal points formed on the occlusal surface of the crown meets a preset criterion, and provides a separate notification when it is determined that correction is required on the occlusal surface of the crown according to the verification result It may further include the step of

In the step of providing the separate notification, the average value of the occlusal strength for each of the plurality of occlusal points formed on the occlusal surface of the crown or the sum of the occlusal areas for each of the plurality of occlusal points is compared with the preset standard. It is possible to determine whether correction of the occlusal surface of the crown is necessary.

receiving a command for creating a new occlusal point through a user interface capable of creating a new occlusal point for a specific area in which the occlusal point does not exist on the occlusal surface of the crown; displaying the ridgeline of the adjacent teeth existing in the same direction as the ridgeline of the crown corresponding to the specific region where the new occlusion point is to be generated and the occlusion point existing within the ridgeline of the adjacent tooth existing in the same direction; and displaying a new occlusal point generated based on occlusion information of the occlusal point existing within the ridgeline of the adjacent teeth on a specific region of the crown.

receiving a command to change the occlusal strength through a user interface capable of finely adjusting the occlusal strength between the occlusal point formed on the occlusal surface of the crown and the antagonist; and changing the occlusal strength between the occlusal point formed on the occlusal surface of the crown and the occlusal tooth according to the received command, thereby displaying the corrected crown on the occlusal surface.

A computing device according to an embodiment of the present invention includes a display; and at least one processor, wherein the processor displays an abutment in the patient's dental data and an adjacent value corresponding to the abutment on a display, and places a crown whose external shape is determined through occlusion information of the crown set in a library on the abutment And, it is possible to provide a crown with a corrected occlusal surface through occlusion information of adjacent teeth corresponding to the abutment teeth.

The processor displays the ridges of the adjacent teeth selected corresponding to the ridges at which the occlusion points are generated on the occlusal surface of the crown and the occlusal points existing within the ridges of the selected adjacent teeth, and based on the occlusal information of the occlusal points existing within the ridges of the displayed adjacent teeth. Thus, the crown with the modified occlusal surface can be displayed.

As the ridge of the adjacent teeth, a ridge existing in the same direction as the ridge at which the occlusal point is generated on the occlusal surface of the crown may be selected.

When a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, the processor may provide a crown with a modified occlusal surface by individually copying occlusal information of the selected occlusal point among the plurality of occlusal points and changing the occlusal information of the crown. have.

When a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, the processor may provide a crown with a modified occlusal surface by group copying occlusal information for all of the plurality of occlusal points and changing the occlusal information of the crown. .

The processor receives a command to create the new occlusal point through a user interface capable of creating a new occlusal point for a specific region where the occlusal point does not exist on the occlusal surface of the crown, and corresponds to the specific region in which the new occlusal point is to be created indicates the occlusion points existing within the ridges of the adjacent teeth existing in the same direction as the ridges of the crown and the ridges of the adjacent teeth existing in the same direction, and a new occlusion point generated based on occlusion information of the occlusion points existing within the ridges of the adjacent teeth may be displayed on a specific area of the crown.

The processor receives a command to change the occlusal strength through a user interface capable of finely adjusting the occlusal strength between the occlusal point and the antagonist formed on the occlusal surface of the crown, and according to the received command, the occlusal surface of the crown By changing the occlusal strength between the formed occlusal point and the antagonist, the occlusal surface may display a modified crown.

The present invention uses the occlusal information of the crown set in the library and the occlusal information of the adjacent teeth corresponding to the abutment to make a surface contact (Surface) between the crown and the antagonist. Contact) can be set automatically.

In addition, according to the present invention, a new occlusal point can be created through a separate user interface for the occlusal surface of the crown in which the surface contact with the antagonist is automatically set.

In addition, the present invention can adjust the occlusal strength between the occlusal point of the crown and the antagonist by disposing a separate user interface close to the occlusal point of the crown in contact with the antagonist.

1 is a view showing a system for correcting the occlusal surface of a prosthesis according to an embodiment of the present invention.
2 is a diagram illustrating a computing device according to an embodiment of the present invention.
3 is a view showing an example of correcting occlusion information of a crown according to an embodiment of the present invention.
4 is a diagram illustrating an example of a user interface according to an embodiment of the present invention.
5 is a flowchart illustrating a method for correcting an occlusal surface according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a system for correcting the occlusal surface of a prosthesis according to an embodiment of the present invention.

Referring to FIG. 1 , the occlusal surface correction system 100 of the present invention may include a first measuring device 110 , a second measuring device 120 , and a computing device 130 . The first measuring device 110 may generate a 3D image such as CT data, and the second measuring device 120 may generate a 2D image such as X-ray data.

Then, the computing device 130 uses the tooth data of the patient received from the first measuring device 110 and the second measuring device 120 and the occlusal information on the antagonist of the crown set in the library between the crown and the antagonist. face contact can be set automatically. In this case, the crown occlusion information set in the library may include information on at least one of an occlusal position, an occlusal area, and an occlusal strength of an occlusal point existing on the occlusal surface of the crown. Here, the occlusal position means the occlusal area of the crown in contact with the antagonist, the occlusal area means the size of the occlusal region, and the occlusal strength may mean the occlusal area of the crown, that is, the amount of invasion of the antagonist at the occlusal point.

In more detail, the computing device 130 may display an abutment and an adjacent value corresponding to the abutment in the patient's tooth data received from the first measuring device 110 and the second measuring device 120 . In addition, the computing device 130 may place a crown whose external shape is determined through occlusion information of the crown set in the library on the abutment. Thereafter, the computing device 130 may provide a crown in which the posterior occlusion is more balanced by correcting the occlusal surface through occlusion information of adjacent teeth corresponding to the abutment teeth.

2 is a diagram illustrating a computing device according to an embodiment of the present invention.

Referring to FIG. 2 , the computing device 130 of the present invention may include a processor 131 , a display 132 , and a user interface 133 . First, the processor 131 may identify the patient's tooth data received from the first measuring device 110 or the second measuring device 120 to establish an orthodontic treatment plan. In this case, the received patient's tooth data may be 3D scan data collected through a CT, a 3D scanner, an intra oral scanner, or the like.

In addition, the processor 131 may divide and identify each of a plurality of individual teeth in the received tooth data. More specifically, the processor 131 may automatically detect the crown and gum of each of the plurality of individual teeth by using the curvature information included in the image of the received tooth data. Alternatively, the processor 131 may semi-automatically detect the crown and gum of each of a plurality of individual teeth by giving a feature point of the crown to the received tooth data, or using crown information directly input by the user through the user interface 133 . It is also possible to manually detect the crown and gum of each of the individual teeth. Through the detected crown and gum, the processor 131 may divide and identify each of a plurality of individual teeth from the received tooth data.

The processor 131 may display, on the display, an abutment and an adjacent tooth corresponding to the abutment, that is, an individual tooth requiring treatment among the identified plurality of individual teeth. In this case, the processor 131 may display the ridge on the occlusal surface of the adjacent teeth and the occlusal point existing within the ridge. Thereafter, the processor 131 may place the crown whose external shape is determined by adjusting the size through occlusion information of the crown set in the library on the abutment. In this case, the crown occlusion information set in the library may include information on at least one of an occlusal position, an occlusal area, and an occlusal strength of an occlusal point existing on the occlusal surface.

Thereafter, the processor 131 may provide the crown with the corrected occlusal surface through the occlusion information of the adjacent teeth corresponding to the abutment teeth. In this case, the occlusal information of the adjacent teeth may include at least one of an occlusal position, an occlusal area, and an occlusal strength indicating the amount of invasion of the antagonist with respect to the occlusal point existing on the occlusal surface of the adjacent teeth.

First, the processor 131 may identify a ridge of a portion where an occlusal point is to be created on the occlusal surface of the crown disposed on the abutment. In addition, the processor 131 may display, on the display, the ridges of the adjacent teeth selected corresponding to the ridges identified on the occlusal surface of the crown and the occlusal points existing within the ridges of the selected adjacent teeth. In this case, as the ridge of the adjacent teeth, a ridge existing in the same direction as the ridge in which the occlusal point is to be generated on the occlusal surface of the crown may be selected.

On the other hand, the ridge refers to a portion raised in a line shape from the external shape of the tooth, and a major ridge and a minor ridge may exist for each cusp on the occlusal surface of the posterior teeth. For example, the processor 131 extracts the occlusal points formed on the ridges in the buccal direction, the lingual direction, the mesial direction, and the distal direction for each cusp in the occlusal surface of the adjacent teeth and extracts the occlusal points on the display. can be displayed in

Thereafter, the processor 131 may display the crown of which the occlusal surface is corrected based on the occlusal information of the occlusal points existing within the ridges of the adjacent teeth displayed on the display. More specifically, the occlusal surface of the crown can be modified by copying the occlusal information of the occlusal point existing within the ridge of the adjacent tooth and changing it to the occlusal information of the occlusal point to be created on the ridge of the crown existing in the same direction as the ridge of the adjacent tooth.

In this case, when a plurality of occlusal points exist within the same single ridge of adjacent teeth selected to correspond to the ridge identified on the occlusal surface of the crown, the processor 131 sums the occlusal areas of each of the plurality of occlusal points, and the summed occlusal area The occlusal surface of the crown can be modified by copying and changing the occlusal information of the occlusal point to be created on the ridge of the crown.

Similarly, when a plurality of occlusal points exist within the same single ridge of adjacent teeth selected corresponding to the ridge identified on the occlusal surface of the crown, the processor 131 calculates an average of occlusal strength for each of the plurality of occlusal points, The occlusal surface of the crown can be modified by copying the average of the calculated occlusal strength and changing it to the occlusal information of the occlusal point to be created on the ridge of the crown.

On the other hand, when a plurality of occlusal points exist within the same single ridge of adjacent teeth selected to correspond to the ridge identified on the occlusal surface of the crown, the processor 131 individually copies the occlusal information of at least one selected occlusal point among the plurality of occlusal points. The occlusal surface of the crown can be modified by changing it to the occlusal information of the crown.

Contrary to this, when a plurality of occlusal points exist within the same ridge of adjacent teeth selected to correspond to the ridge identified on the occlusal surface of the crown, the processor 131 copies the occlusal information for all of the plurality of occlusal points in a group and copies the occlusion of the crown. By changing the information, the occlusal surface of the crown can be modified.

3 is a view showing an example of correcting occlusion information of a crown according to an embodiment of the present invention.

Referring to FIG. 3A , the crown occlusion information set in the library may include information on occlusal positions, occlusal areas, and occlusal strengths of occlusal points formed on the occlusal surface. Then, the processor 131 may transform the occlusal point existing on the occlusal surface of the crown by reflecting the occlusal information of the adjacent teeth to the occlusal information of the crown, as shown in FIG. 3B . At this time, the processor 131 classifies the ridges existing on the occlusal surface of the crown according to directions, and copies the occlusal information on the occlusal points formed within the ridges of the adjacent teeth existing in the same direction as the ridges of the crown to change to the occlusal information of the crown. By doing so, the occlusal surface of the crown can be modified. The first occlusion information may be updated by applying to the library model.

Specifically, the processor 131 may change the shape of the corresponding occlusal point by changing the occlusal area in the occlusal information of the crown according to the occlusal area in the occlusal information of the adjacent teeth. And, by adjusting the size of the crown whose shape of the occlusal point is deformed in this way, the processor 131 may place the crown on the abutment so as to abut the occlusal area by the occlusal area changed in the occlusal position included in the occlusal information of the crown.

Thereafter, the processor 131 changes the occlusal strength among the occlusal information of the crown according to the occlusal strength among the occlusal information of the adjacent teeth, thereby setting the amount of invasion of the antagonist for the corresponding occlusion, that is, the degree of penetration of the occlusal point of the crown to the occlusion of the crown. design can be completed.

As such, the processor 131 can automatically place the crown on the abutment without any user manipulation using the occlusal information of the crown set in the library, as well as the occlusal information of the crown using the occlusal information on the adjacent teeth of the crown. By changing , the crown can be designed so that the posterior occlusion is more balanced.

Meanwhile, the processor 131 may increase user convenience by providing a separate user interface 133 capable of modifying the occlusal strength with respect to the crown automatically disposed on the abutment. A more detailed user interface 133 will be described with reference to FIG. 4 below.

4 is a diagram illustrating an example of a user interface according to an embodiment of the present invention.

를 기준으로 크라운과 대합치 사이의 교합 강도를 일정 단계만큼 수정할 수 있다.Referring to FIG. 4A , the user interface 133 capable of modifying the occlusal strength between the occlusal point of the crown and the opposing tooth may be disposed to be located within a predetermined distance from the occlusal point of the corresponding crown. As an example, the user interface 133 may correspond to a one-click menu, and the occlusal paper thickness 10

Based on this, the occlusal strength between the crown and the antagonist can be modified by a certain level.

That is, when the user clicks the plus (+) or minus (-) displayed on the one-click menu through the mouse cursor, the occlusal strength between the occlusal point of the crown and the opposing tooth is finely corrected as shown in Fig. 4(a). it can be confirmed that However, in relation to the occlusal strength, it is possible to modify the occlusal strength in three steps from 0 to 2 in FIG.

Also, such a change in occlusal strength can be expressed through the external characteristics of the occlusal point. For example, when the occlusal strength between the occlusal point of the crown and the antagonist is changed, the processor 131 may help the user to intuitively determine the occlusal strength by changing the color of the occlusal point through the color map contour method.

Meanwhile, referring to FIG. 4B , the user interface 133 capable of creating or deleting an occlusion point between the crown and the antagonist may be disposed to be located within a predetermined distance from the occlusion point of the corresponding crown. Specifically, when the processor 131 receives a command to create a new occlusal point for a specific area in which the occlusal point does not exist on the occlusal surface of the crown through the user interface 133, the occlusal surface of the crown corresponding to the specific area is A new occlusal point can be created by modifying it to contact the antagonist. More specifically, the processor 131 displays, on the display, the ridges of the adjacent teeth existing in the same direction as the ridges of the crown corresponding to the specific region in which the new occlusion points are to be created and the ridges of the adjacent teeth existing in the ridges of the adjacent teeth in the same direction on the display. Based on the occlusal information of the occlusal point existing within the ridge of the tooth, a new occlusal point may be created and displayed in a specific area of the crown.

For example, when the user clicks on a specific area to create a new occlusion point through the mouse cursor that is the user interface 133 as shown in FIG. 4B, the processor 131 creates a new occlusion point in the specific area and , it is possible to provide a one-click menu for adjusting the occlusal strength of the newly created occlusal point. In this case, a separate button for deleting the new occlusion point may be provided near the new occlusion point to help the user to delete the new occlusion point at any time.

Meanwhile, referring to FIG. 4C , the processor 131 may correct the occlusal surface of the crown by reflecting the occlusal interference when creating a new occlusal point. More specifically, when creating a new occlusal point, an unintended area of invasion of the antagonistic teeth occurs, such as when the new occlusal point does not touch the antagonist within the tooth movement path or the periphery of the new occlusion point excessively contacts the antagonist. In this case, the processor 131 may automatically delete or correct the corresponding antagonist acupuncture area so that the new occlusal point of the crown contacts the antagonist. That is, the processor 131 may display the periphery of the newly created new occlusion point by performing a smoothing process.

5 is a flowchart illustrating a method for correcting an occlusal surface according to an embodiment of the present invention.

In operation 510, the computing device 130 may display an abutment in the patient's dental data and an adjacent value corresponding to the abutment on the display. In this case, the computing device 130 may display the ridge on the occlusal surface of the adjacent teeth and the occlusal point existing within the ridge.

In operation 520 , the computing device 130 may place the crown whose external shape is determined through occlusion information of the crown set in the library on the abutment. In this case, the crown occlusion information set in the library may include information on at least one of an occlusal position, an occlusal area, and an occlusal strength of an occlusal point existing on the occlusal surface.

In operation 530 , the computing device 130 may provide a crown with a modified occlusal surface through occlusion information of adjacent teeth corresponding to the abutment teeth. In this case, the occlusal information of the adjacent teeth may include at least one of an occlusal position, an occlusal area, and an occlusal strength indicating the amount of invasion of the antagonist with respect to the occlusal point existing on the occlusal surface of the adjacent teeth.

More specifically, the computing device 130 copies the occlusal information of the occlusal points existing within the ridges of the adjacent teeth and changes the occlusal information to the occlusal information of the occlusal points to be generated on the ridges of the crowns existing in the same direction as the ridges of the adjacent teeth. Crown can be displayed.

In step 540, when the computing device 130 receives a correction command for the occlusal surface of the crown through the user interface, the computing device 130 adjusts the occlusal strength of the occlusal point existing on the occlusal surface of the crown according to the received correction command, or Creation or deletion of new occlusal points may be performed.

In step 550, the computing device 130 verifies whether the occlusal information of the crown for which the design has been completed satisfies a preset criterion, and when it is determined that correction of the occlusal surface of the crown is necessary according to the verification result, a separate Notifications can be provided. In this case, when a plurality of occlusal points are formed on the occlusal surface of the crown for which the design is completed, the computing device 130 pre-determines the average value of the occlusal strength for each of the plurality of occlusal points or the sum of the occlusal areas for each of the plurality of occlusal points. By comparing with the established standard, it is possible to determine whether or not correction of the occlusal surface of the crown is necessary.

For example, the crown may be created by creating a coping satisfying the minimum thickness on the abutment, and combining the crown external shape on the coping. In this case, the minimum thickness value of the coping may be different depending on the type of material of the crown.

Accordingly, the computing device 130 reflects the occlusal strength included in the occlusal information of the crown to determine whether the set antagonistic invasion amount violates the minimum thickness of the coping, and when the antagonistic invasion amount violates the minimum thickness of the coping, It may be suggested to modify the design of the crown by providing the user with a separate warning or alarm.

In other words, the computing device 130 generates a separate identifier on the screen according to whether the amount of invasion of the crown's antagonistic teeth violates the minimum thickness of the coping, that is, whether the occlusal strength of the crown for which the design is completed meets a preset criterion. It can help the user to determine whether the design of the crown is appropriate by displaying it.

, 위험인 경우 X를 표시) 다양한 방법을 통해 제공될 수 있다.Specifically, when the amount of invasion of the crown's opposing tooth violates the minimum thickness of the coping, the computing device 130 may provide the user with whether to modify the design of the crown through a separate identifier. For example, the computing device 130 may display texts such as normal, caution, and danger on the screen according to the degree of invasion for the invasion area in which the amount of invasion of the crown's opposing tooth violates the minimum thickness of the coping to inform the user of the design of the crown. may indicate that there is a problem. Alternatively, the computing device 130 provides a highlight through a color change, etc. according to the degree of invasion for the invasion area in which the amount of invasion of the crown's opposing tooth violates the minimum thickness of the coping, so that the user can intuitively identify the problem of the crown. can help you Such a method of providing whether the design of the crown is appropriate is not limited to the above example, and a change in the shape of an identifier (for example, O if the degree of invasion is normal, or caution

, if it is a risk, mark an X) can be provided through various methods.

Similarly, when the occlusal area between the crown and the occlusal tooth, that is, the occlusal area of the occlusal point differs by a predetermined ratio or more (for example, 3 times or more) compared to the preset reference, the computing device 130 may adjust the occlusal strength As in the case of the case, it can help the user to identify the problem of the crown through various identifiers such as warning text and color change.

Meanwhile, the method according to the present invention is written as a program that can be executed on a computer and can be implemented in various recording media such as magnetic storage media, optical reading media, and digital storage media.

Implementations of the various techniques described herein may be implemented in digital electronic circuitry, or in computer hardware, firmware, software, or combinations thereof. Implementations may be implemented for processing by, or controlling the operation of, a data processing device, eg, a programmable processor, computer, or number of computers, a computer program product, ie an information carrier, eg, a machine readable storage It may be embodied as a computer program tangibly embodied in an apparatus (computer readable medium) or a radio signal. A computer program, such as the computer program(s) described above, may be written in any form of programming language, including compiled or interpreted languages, as a standalone program or in a module, component, subroutine, or computing environment. It can be deployed in any form, including as other units suitable for use in A computer program may be deployed to be processed on one computer or multiple computers at one site or distributed across multiple sites and interconnected by a communications network.

Processors suitable for processing a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer. In general, a processor will receive instructions and data from either read-only memory or random access memory or both. Elements of a computer may include at least one processor that executes instructions and one or more memory devices that store instructions and data. In general, a computer may include, receive data from, transmit data to, or both, one or more mass storage devices for storing data, for example magnetic, magneto-optical disks, or optical disks. may be combined to become Information carriers suitable for embodying computer program instructions and data are, for example, semiconductor memory devices, for example, magnetic media such as hard disks, floppy disks and magnetic tapes, Compact Disk Read Only Memory (CD-ROM). ), optical recording media such as DVD (Digital Video Disk), magneto-optical media such as optical disk, ROM (Read Only Memory), RAM (RAM) , Random Access Memory), flash memory, EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), and the like. Processors and memories may be supplemented by, or included in, special purpose logic circuitry.

In addition, the computer-readable medium may be any available medium that can be accessed by a computer, and may include both computer storage media and transmission media.

While this specification contains numerous specific implementation details, they should not be construed as limitations on the scope of any invention or claim, but rather as descriptions of features that may be specific to particular embodiments of particular inventions. should be understood Certain features that are described herein in the context of separate embodiments may be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment may also be implemented in multiple embodiments, either individually or in any suitable subcombination. Furthermore, although features operate in a particular combination and may be initially depicted as claimed as such, one or more features from a claimed combination may in some cases be excluded from the combination, the claimed combination being a sub-combination. or a variant of a sub-combination.

Likewise, although acts are depicted in the drawings in a particular order, it should not be construed that all acts shown must be performed or that such acts must be performed in the specific order or sequential order shown to obtain desirable results. In certain cases, multitasking and parallel processing may be advantageous. Further, the separation of the various device components of the above-described embodiments should not be construed as requiring such separation in all embodiments, and the program components and devices described may generally be integrated together into a single software product or packaged into multiple software products. You have to understand that you can.

On the other hand, the embodiments of the present invention disclosed in the present specification and drawings are merely presented as specific examples to aid understanding, and are not intended to limit the scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

100: occlusal surface correction system
110: first measuring device
120: second measuring device
130: computing device

Claims (15)

displaying an abutment in the patient's dental data and adjacent teeth corresponding to the abutment on a display;
Placing a crown whose external shape is determined through occlusion information of the crown set in the library on the abutment; and
providing a crown with a modified occlusal surface based on the ridges of the adjacent teeth selected corresponding to the ridges at which the occlusal points are generated on the occlusal surfaces of the crowns and the occlusal points existing within the ridges of the selected adjacent teeth;
A method of modifying the occlusal surface of a prosthesis, comprising: delete According to claim 1,
The ridges of the adjacent teeth are,
The occlusal modification method of the prosthesis, characterized in that the ridges existing in the same direction as the ridges on which the occlusal points are generated are selected on the occlusal surface of the crown. According to claim 1,
The step of providing the crown,
When a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, the occlusal information of the selected occlusal points among the plurality of occlusal points is individually copied and the occlusal surface of the crown is modified by changing the occlusal information of the crown. of the occlusal surface modification method. According to claim 1,
The step of providing the crown,
When a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, occlusal information for all of the plurality of occlusal points is group copied and the occlusal surface of the crown is modified by changing the occlusal information of the crown. How to correct the occlusal surface. According to claim 1,
Verifies whether the occlusal information of each of the plurality of occlusal points formed on the occlusal surface of the crown meets a preset criterion, and provides a separate notification when it is determined that the occlusal surface of the crown needs correction according to the verification result step to do
The occlusal modification method of the prosthesis, characterized in that it further comprises. 7. The method of claim 6,
The step of providing the separate notification comprises:
The need for correction of the occlusal surface of the crown by comparing the average value of the occlusal strength for each of the plurality of occlusal points formed on the occlusal surface of the crown or the sum of the occlusal areas for each of the plurality of occlusal points with the preset standard Occlusal surface correction method of a prosthesis, characterized in that determining whether or not. According to claim 1,
receiving a command for creating a new occlusal point through a user interface capable of creating a new occlusal point for a specific area in which the occlusal point does not exist on the occlusal surface of the crown; and
displaying the ridges of the adjacent teeth existing in the same direction as the ridge ridges of the crown corresponding to the specific region where the new occlusal point is to be generated and the occlusion points existing within the ridgelines of the adjacent teeth existing in the same direction; and
Displaying a new occlusal point generated based on occlusion information of the occlusal point existing within the ridgeline of the adjacent teeth in a specific area of the crown
The occlusal modification method of the prosthesis, characterized in that it further comprises. According to claim 1,
receiving a command to change the occlusal strength through a user interface capable of finely adjusting the occlusal strength between the occlusal point formed on the occlusal surface of the crown and the antagonist; and
Displaying a crown whose occlusal surface is modified by changing the occlusal strength between the occlusal point formed on the occlusal surface of the crown and the antagonist according to the received command
The occlusal modification method of the prosthesis, characterized in that it further comprises. display; and
at least one processor
including,
The processor is
In the patient's tooth data, the abutment and the adjacent teeth corresponding to the abutment are displayed on the display, the crown whose external shape is determined through the occlusion information of the crown set in the library is placed on the abutment, and the occlusal point is created on the occlusal surface of the crown The computing device of claim 1, wherein the crown is provided with a modified occlusal surface based on the ridges of the adjacent teeth selected corresponding to the ridges and the occlusal points existing within the ridges of the selected adjacent teeth. delete 11. The method of claim 10,
The ridges of the adjacent teeth are,
Computing device, characterized in that the ridge existing in the same direction as the ridge on which the occlusal point is generated on the occlusal surface of the crown is selected. 11. The method of claim 10,
The processor is
When a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, the occlusal information of the selected occlusal points among the plurality of occlusal points is individually copied and the occlusal information of the crown is changed to provide a crown with a modified occlusal surface, characterized in that computing device. 11. The method of claim 10,
The processor is
When a plurality of occlusal points exist within the ridgeline of the selected adjacent teeth, occlusal information for all of the plurality of occlusal points is group copied and the occlusal information of the crown is changed to provide a crown with a modified occlusal surface. Computing characterized in that Device. 11. The method of claim 10,
The processor is
A command to change the occlusal strength is received through a user interface that can fine-tune the occlusal strength between the occlusal point formed on the occlusal surface of the crown and the antagonist, and the occlusal point formed on the occlusal surface of the crown according to the received command and A computing device, characterized in that the occlusal surface displays the modified crown by changing the occlusal strength between the opposing teeth.

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