KR20220129349A - Method and device for providing modeling data for target teeth - Google Patents

Abstract

Disclosed is a method for providing modeling data for a target tooth, which comprises the following steps: if there is an adjacent tooth of a target tooth, determining a plurality of reference positions including a height of contour and a cusp tip on the adjacent tooth; determining a plurality of reference lines based on the plurality of reference positions; acquiring sample modeling data for the target tooth; and providing the modeling data obtained by updating the sample modeling data according to the plurality of reference lines. The step of determining the plurality of reference positions includes a step of including the location of a main groove. According to the present invention, more detailed target tooth modeling data based on detailed tooth feature points may be obtained.

Description

Method and device for providing modeling data for target teeth {Method and device for providing modeling data for target teeth}

The present invention relates to a method and device for providing modeling data for a target tooth. In more detail, it relates to a method and device for determining a plurality of reference lines based on a plurality of reference positions for adjacent teeth of a target tooth, and providing modeling data obtained by updating sample modeling data according to the plurality of reference lines will be.

Conventionally, in order to obtain modeling data for a missing or missing target tooth, the sample tooth data obtained on the basis of a scale indicating the degree to which the shape and position, orientation, or feature point match between the adjacent teeth and the pre-stored sample tooth data is used as the target tooth. Modeling data for a missing or missing target tooth is acquired by substituting data or acquiring data suitable for the target tooth from among sample tooth data based on occlusal surface information obtained from adjacent teeth.

In addition, a method of processing the obtained modeling data for the target tooth to be more appropriate for the target tooth through additional operations such as moving the shape, position, orientation, or feature point as necessary is being performed, but a rather basic method for teeth Since modeling data for a target tooth is acquired based on similarity with respect to features (eg, shape and position, orientation, or feature point), there is a problem in that the accuracy and suitability of the modeling data are insufficient.

In addition, there is also a problem in that it is difficult to obtain modeling data for a target tooth because characteristic information of the adjacent teeth or the antagonist cannot be found when the adjacent teeth or the antagonist teeth do not exist in the edentulous state.

Accordingly, the sample tooth data is updated based on the information obtained from the structural feature points for the gums as well as the detailed structural feature points for the adjacent teeth adjacent to the target teeth in the oral cavity that is denture or edentulous to be more accurate and suitable for the target teeth. A method for acquiring modeling data is required.

Korean Patent Publication No. 10-2019-0020756 (2019.03.04)

The problem to be solved by the present invention is to obtain by updating sample modeling data based on a plurality of reference lines determined according to the positions of the maximal ridge, cusp and main groove on the image of the adjacent tooth when there is an adjacent tooth of the target tooth. It is to provide a method and device for providing modeling data.

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

As a technical means for achieving the above-described technical problem, in the method of providing modeling data for a target tooth according to the first aspect of the present disclosure, when there is an adjacent tooth of the target tooth, the maximum protuberance on the adjacent tooth and determining a plurality of reference positions including the cusps; determining a plurality of reference lines based on the plurality of reference positions; acquiring sample modeling data for the target tooth; and providing the modeling data obtained by updating the sample modeling data according to the plurality of reference lines.

In addition, the maximum cusp portion may include a lingual maximum cusp and buccal and labial maximum ridges, and the cusp may include a lingual cusp and a buccal apex.

In addition, the determining of the plurality of reference positions may include: acquiring an image of the adjacent teeth; and determining the positions of the lingual maximal peak, the buccal and labial maximal peak, the lingual cusp, the buccal cusp, and the main groove based on the acquired image, wherein the plurality of reference positions is the lingual maximal peak. It may include the position of the ridge, the buccal and labial maximal ridge, the lingual cusp, the buccal cusp and the main groove.

In addition, the determining of the plurality of reference lines may include: acquiring the plurality of reference positions including positions of the lingual maximum cusp, the buccal and labial maximum ridges, the lingual cusp, the buccal cusp and the main groove; and a first reference line determined according to the position of the boundary between the lingual maximal prominence of the posterior and the anterior lingual teeth and the gums, a second reference line determined according to the positions of the buccal and labial maximal prominences, the lingual cusp and the anterior lingual maximal A third reference line determined according to the position of the protuberance, a fourth reference line determined according to the positions of the buccal apex and the incisal edge of the anterior portion, and a fifth reference line determined according to the positions of the right leg and the main groove of the mesial incisal edge of the canine teeth and determining, wherein the plurality of reference lines may include the first to fifth reference lines.

In addition, the acquiring of the modeling data may include: re-updating the updated plurality of sample reference positions based on a user input; and acquiring the modeling data based on the re-updated reference positions of the plurality of samples.

In addition, if there is no adjacent teeth, determining the plurality of reference positions including the central point of the oral protrusion in the maxilla, the central point of the canine and the reference point of the incisal edge of the anterior part; may further include.

In addition, determining a fifth reference line connecting the center point of the oral cavity, the canine center point and the anterior cut edge reference point; further comprising, the plurality of reference lines may include the fifth reference line can

In addition, the plurality of reference positions further include a lingual boundary point of the oral protrusion in the maxilla, and determining a first reference line determined according to the shape of the fifth reference line; further comprising, the plurality of reference lines may include the first reference line.

A device for providing modeling data for a target tooth according to a second aspect of the present disclosure, comprising: a receiver configured to obtain sample modeling data for the target tooth; and when there is an adjacent tooth of the target tooth, a plurality of reference positions including a maximum ridge and a cusp apex are determined on the adjacent tooth, a plurality of reference lines are determined based on the plurality of reference positions, and the plurality of A processor for providing the modeling data obtained by updating the sample modeling data according to a reference line; may be provided, including a device.

In addition to this, other specific details of the present invention are included in the detailed description and drawings.

According to an embodiment of the present disclosure, in the case of a dental jaw state, detailed dental feature points by updating sample modeling data based on a plurality of reference lines determined according to the positions of the maximum protuberance, cusp and main groove for adjacent teeth It is possible to obtain more sophisticated target tooth modeling data based on

In addition, the updated modeling data to be more suitable for the target tooth may be re-updated based on a user input.

In addition, in the case of an edentulous state without adjacent teeth, sampling data may be updated based on a reference line determined according to the positions of the central point of the oral cavity, the central point of the canine teeth, and the reference point of the incisal edge of the anterior region.

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

1 is a block diagram schematically illustrating a configuration of a device according to an embodiment.
2 is a flowchart illustrating each step of providing modeling data through a device according to an exemplary embodiment.
3 is a diagram schematically illustrating an example of determining the positions of the maximum ridge and the cusp through the device according to an embodiment.
4 is a diagram schematically illustrating an example of determining a position of a main groove through a device according to an embodiment.
5 is a diagram schematically illustrating an example of determining a first reference line and a second reference line through a device according to an embodiment.
6 is a diagram schematically illustrating an example of determining a third reference line and a fourth reference line through a device according to an exemplary embodiment.
7 is a diagram schematically illustrating an example of determining a fifth reference line through a device according to an embodiment.
8 is a diagram schematically illustrating a plurality of reference lines according to an exemplary embodiment.
9 is a diagram schematically illustrating an example in which a plurality of sample reference positions are updated based on a plurality of reference lines through a device according to an embodiment.
10 is a diagram schematically illustrating an example of re-updating a plurality of updated sample reference positions based on a user input, according to an embodiment.
11 is a diagram schematically illustrating an example of determining a plurality of reference positions when there are no adjacent teeth, according to an embodiment.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only those of ordinary skill in the art to which the present invention pertains, to complete the disclosure of the present invention. It is provided to fully understand the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for the purpose of describing the embodiments and is not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other components in addition to the stated components. Like reference numerals refer to like elements throughout, and "and/or" includes each and every combination of one or more of the recited elements. Although "first", "second", etc. are used to describe various elements, these elements are not limited by these terms, of course. These terms are only used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein will have the meaning commonly understood by those of ordinary skill in the art to which this invention belongs. In addition, terms defined in a commonly used dictionary are not to be interpreted ideally or excessively unless clearly specifically defined.

Spatially relative terms "below", "beneath", "lower", "above", "upper", etc. It can be used to easily describe the correlation between a component and other components. A spatially relative term should be understood as a term that includes different directions of components during use or operation in addition to the directions shown in the drawings. For example, when a component shown in the drawing is turned over, a component described as “beneath” or “beneath” of another component may be placed “above” of the other component. can Accordingly, the exemplary term “below” may include both directions below and above. Components may also be oriented in other orientations, and thus spatially relative terms may be interpreted according to orientation.

1 is a block diagram schematically illustrating a configuration of a device 100 according to an embodiment.

Referring to FIG. 1 , a device 100 that provides modeling data 940 on a target tooth may include a receiver 110 that acquires sample modeling data 910 on the target tooth.

In addition, if there is an adjacent tooth of the target tooth, a plurality of reference positions including the maximum protuberance and the cusp apex are determined on the adjacent tooth, a plurality of reference lines 810 are determined based on the plurality of reference positions, and a plurality of The processor 120 may include the processor 120 providing the modeling data 940 obtained by updating the sample modeling data 910 according to the reference line 810 .

The target tooth may mean a tooth that is missing, lost, or damaged, and the modeling data 940 for the target tooth may be 3D modeling data representing the shape of the target tooth.

The sample modeling data 910 may be stored in advance on a server or database connected to the device 100 and a network, and may be acquired through the receiver 110 . The sample modeling data 910 may refer to sample data including various shapes of all teeth including the target tooth.

In addition, various terms including the maximum prominence and cusp apex mentioned below are conventionally defined dental morphological terms, and the terms and implementations, examples, etc. of the invention disclosed herein are easily understood by those skilled in the art. can

Some of the content not described above will be described in more detail with reference to the drawings below.

2 is a flowchart illustrating each step of providing modeling data 940 through the device 100 according to an exemplary embodiment.

In step S210 , when there is an adjacent tooth of the target tooth, the device 100 may determine a plurality of reference positions including the maximum ridge and the cusp apex on the adjacent tooth.

Referring to FIGS. 3 and 4 , the maximum cusp may include the lingual maximum cusp and the buccal and labial maximum ridges 340 , and the cusp may include the lingual cusp 350 and the buccal cusp 370 . In addition, the lingual maximal peak may include a posterior lingual maximal peak 320 and an anterior lingual maximal peak 360 .

The device 100, based on the acquired image 310 of the adjacent teeth, the lingual maximum ridge, the buccal and labial maximum ridge 340, the anterior lingual maximum ridge 360, the lingual cusp 350, and the buccal ridge The position of the cusp vertex 370 may be determined. The image 310 for the adjacent teeth may include 2D or 3D modeling data 940 representing the shape of the tooth.

Also, the device 100 may determine the position 410 of the main groove on the acquired image 310 . The main groove starts at the right leg 420 of the mesial incisal edge of the 3rd canine, passes through the root and distal fossa of the 4th and 5th premolars, and may represent a point connecting to the root and distal fossa of the 6th and 7th molars. The position 410 of the main groove may be determined as shown in FIG. 4 .

The device 100 is a lingual maximum cusp, buccal and labial maximum ridge 340, anterior lingual maximum ridge 360, lingual cusp 350, buccal cusp 370, right angle of the mesial incisal edge of canine. A plurality of reference positions including 420 and the position 410 of the main groove may be determined, and the plurality of reference positions may be used to predict the shape of the target tooth.

In operation S220 , the device 100 according to an embodiment may determine a plurality of reference lines 810 based on the plurality of reference positions.

3 to 8 , the device 100 provides a first reference line determined according to the position of the posterior lingual maximal peak 320 and the anterior lingual tooth and gum boundary 330 among the lingual maximal peaks. (510), a second reference line 520 determined according to the positions of the buccal and labial maximum ridges 340, and a third determined according to the positions of the lingual cusp 350 and the anterior lingual maximum ridge 360 The fourth reference line 620 and the position 410 of the main groove determined according to the positions of the reference line 610, the buccal cusp 370 and the anterior incisal edge 380, and the right leg 420 of the mesial incisal edge of the canine teeth ) may determine a fifth reference line 710 determined according to the position of the. The device 100 may determine the first reference line 510 to the fifth reference line 710 as the plurality of reference lines 810 .

The plurality of reference lines 810 may be determined to form a gentle curve on the image 310 as shown in the figure. It can be seen as representing the overall structural characteristics. That is, the plurality of reference lines 810 are determined based on the plurality of reference positions obtained on the image 310 for the adjacent teeth of the target tooth, and sample modeling data representing a shape similar to the shape of the missing, missing or damaged target tooth. It can be used to obtain 910 .

In step S230 , the device 100 according to an embodiment may acquire sample modeling data 910 for the target tooth, and in step S240 , the device 100 performs sample modeling data ( Modeling data 940 obtained by updating 910 may be provided.

Referring to FIG. 9 , the device 100 may acquire pre-stored sample modeling data 910 from a server or a database through the receiver 110 . The sample modeling data 910 is used to acquire the modeling data 940 of the target tooth, and may include tooth images obtained from various directions such as side, front, and upper side, and 3D viewpoint transformation for the tooth model is free. Modeling data may be included.

Accordingly, the device 100 may determine a plurality of sample reference positions 920 on the sample model based on the sample modeling data 910, and the plurality of sample reference positions 920 also include the lingual maximum ridge on the sample model, It can be determined based on the positions of the buccal and labial maximal ridges, the lingual cusp, the buccal cusp, and the main groove, and the position of the right leg of the mesial incisal margin of the canine. The two-dimensional or three-dimensional positions (coordinates) of the plurality of sample reference positions 920 may be different from the plurality of reference positions on the image 310 for adjacent teeth of the target tooth.

The device 100 may update the plurality of sample reference positions 920 according to the plurality of reference lines 810 in order to obtain modeling data 940 suitable for the target tooth.

Specifically, the device 100 includes at least two or more two-dimensional reference coordinates (x, y) or at least three or more three-dimensional reference coordinates included in the tooth model on the image 310 and the sample model on the sample modeling data 910 . Based on (x, y, z), the tooth model on the image 310 and the sample model on the sample modeling data 910 may be matched. In this way, when each tooth model is matched, the sample model on the sample modeling data 910 may be moved to the position of the tooth model on the image 310 to be matched.

In addition, when each tooth model on the image 310 and the sample modeling data 910 is matched with each other, the plurality of reference positions and the plurality of reference lines 810 obtained from the image 310 for the adjacent teeth of the target tooth are It may be located on the tooth image of the sample modeling data 910 and may be displayed as shown in the drawing located at the bottom of FIG. 9 .

Specifically, a sample tooth according to the sample modeling data 910, a plurality of sample reference positions 920 according to the sample modeling data 910, and a plurality of reference positions and a plurality of reference positions on the image 310 for adjacent teeth of the target tooth The reference lines 810 may contact and overlap each other as shown in the drawing located at the bottom of FIG. 9 , and a plurality of reference positions and a plurality of sample reference positions 920 contacting and overlapping with the plurality of reference lines 810 are The positions may be updated to correspond to the plurality of reference lines 810 , and a plurality of updated sample reference positions 930 may be obtained.

That is, the plurality of sample reference positions 920 are updated (moved) to correspond to the plurality of reference lines 810 determined from adjacent teeth in order to predict the shape of the target tooth, so that the updated plurality of sample reference positions 930 are determined. In addition, the device 100 may acquire the modeling data 940 indicating the shape of the target tooth including the updated plurality of sample reference positions 930 and the plurality of reference lines 810 .

In an embodiment, the plurality of sample reference positions 920 may be updated based on two-dimensional and three-dimensional coordinates. may be desirable.

As a result, the present disclosure is based on the technical fact related to dental engineering that the shape of the target tooth can be predicted based on a plurality of reference lines 810 according to a plurality of reference positions with respect to the adjacent teeth of the target tooth, and the shape of the target tooth A plurality of sample reference positions 920 on the sample modeling data 910 to quickly and accurately acquire modeling data 940 indicating to be updated, and modeling data 940 of the target tooth may be acquired based on the updated plurality of sample reference positions 930 .

3 is a diagram schematically illustrating an example of determining the positions of the maximum wind ridge and the cusp through the device 100 according to an embodiment.

Referring to the drawings, the device 100 shows the lingual maximum peak, the anterior lingual tooth and the gum boundary 330, the buccal and labial maximum peak 340, and the lingual bridge on the image 310 for the adjacent teeth of the target tooth. The position of the parietal 350, the buccal cusp 370, and the anterior cutting edge 380 may be determined. The lingual maximal peak may include a posterior lingual maximal peak 320 and an anterior lingual maximal peak 360 .

Each of the determined positions may be displayed on the image 310 as shown in the figure. The position of the maximum protuberance may be determined as at least two positions per individual tooth, and the position of the cusp may be determined as a plurality of positions per individual tooth according to the shape of the posterior teeth. Although the figure shows an example of determining the position of the maximum protuberance and the cusp apex based on the upper side of the tooth model, the image 310 for the adjacent teeth of the target tooth is an image for the entire side including the side of the tooth model ( 310), and thus obtained positions of the maximum ridges and cusps may be determined to include three-dimensional coordinates, and may be determined as positions of the maximum ridges and cusps by a preset range.

4 is a diagram schematically illustrating an example of determining the position 410 of the main groove through the device 100 according to an embodiment.

Referring to the drawing, the device 100 may determine the position of the main groove 410 and the right leg portion 420 of the mesial cut edge of the canine on the image 310 of the adjacent tooth of the target tooth. The determined position 410 of the main groove may be displayed on the image 310 as shown in the drawing. The main groove starts at the right angle of the mesial incisal edge of the 3rd canine, passes through the root and distal fossa of the 4th and 5th premolars, and connects to the root and distal fossa of the 6th and 7th molars. This may be the deepest point of flexion. The three-dimensional coordinates and a preset range corresponding to the main groove may be determined as the position 410 of the main groove. That is, the main groove may represent a curve in which adjacent teeth are arranged, and the shape of the target tooth may be predicted using this.

5 is a diagram schematically illustrating an example of determining a first reference line 510 and a second reference line 520 through the device 100 according to an embodiment.

Referring to the drawings, the first reference line 510 may be determined based on the position of the maximum lingual prominence 320 in the posterior region and the boundary 330 between the anterior lingual teeth and the gums, and the second reference line 520 is the buccal And it may be determined based on the position of the labial maximum windmill 340. Each determined line may be displayed on the image 310 .

Specifically, the first reference line 510 may be a reference line in which the positions of the posterior lingual maximal protuberance 320 and the anterior lingual tooth and the gum boundary 330 with respect to the adjacent teeth of the target tooth are all connected, and the second The reference line 520 may be a reference line in which both the positions of the buccal and labial maximal protuberances 340 with respect to adjacent teeth are connected. Since each of these reference lines is determined to pass through the position of the target tooth, the shape of the target tooth can be more easily predicted based on the respective lines. For example, based on the first reference line 510 and the second reference line 520 for adjacent teeth located on both sides of the target tooth, the maximal posterior lingual protrusion 320 and the anterior lingual tooth and gum of the target tooth It is possible to predict the position of the boundary 330 and the position of the buccal and labial maximum ridges 340 .

6 is a diagram schematically illustrating an example of determining a third reference line 610 and a fourth reference line 620 through the device 100 according to an embodiment.

Referring to the drawings, the third reference line 610 may be determined based on the positions of the lingual cusp 350 and the anterior lingual maximal ridge 360 , and the fourth reference line 620 is the buccal cusp 370 . ) and may be determined based on the position of the anterior cutting edge 380 . Each determined line may be displayed on the image 310 .

Specifically, the third reference line 610 may be a reference line in which the positions of the lingual cusp 350 and the anterior lingual maximal protuberance 360 with respect to the adjacent teeth of the target tooth are all connected, and the fourth reference line 620 ) may be a reference line in which both the positions of the buccal cusp 370 and the anterior cutting edge 380 with respect to the adjacent teeth are connected. Since each of these reference lines is determined to pass through the position of the target tooth, the shape of the target tooth can be more easily predicted based on the respective lines. For example, based on the third reference line 610 and the fourth reference line 620 for adjacent teeth located on both sides of the target tooth, the lingual cusp 350 and the anterior lingual maximal protuberance 360 of the target tooth ) and the positions of the buccal cusp 370 and the anterior cutting edge 380 can be predicted.

7 is a diagram schematically illustrating an example of determining a fifth reference line 710 through the device 100 according to an embodiment.

Referring to the drawings, the fifth reference line 710 may be determined based on the position 410 of the main groove with respect to the adjacent teeth of the target tooth and the right leg portion 420 of the mesial cut edge of the canine shown in FIG. 4 . The determined fifth reference line 710 may be displayed on the image 310 . Specifically, the fifth reference line 710 may be a reference line in which the position of the main groove 410 with respect to the adjacent teeth of the target tooth and the position of the right leg 420 of the mesial incisal edge of the canine are connected, and the fifth reference line Line 710 may include a curve in which adjacent values are arranged.

8 is a diagram schematically illustrating a plurality of reference lines 810 according to an exemplary embodiment.

Referring to the drawings, the first reference line 510 , the second reference line 520 , the third reference line 610 , the fourth reference line 620 and the fifth reference line 710 are the posterior lingual maximum winds, respectively. Ridge 320 and anterior lingual tooth and gum boundary 330, buccal and labial maximal crest 340, lingual cusp 350 and anterior lingual maximal crest 360, buccal cusp 370 and anterior The incisal edge 380, the mesial incisal edge of the canine tooth is determined according to the right leg portion 420 and the position 410 of the main groove, and each determined line is in contact with the position of the target tooth on the image 310 as shown in the figure. , may be displayed to overlap.

9 is a diagram schematically illustrating an example in which a plurality of sample reference positions 920 are updated based on a plurality of reference lines 810 through the device 100 according to an embodiment.

The device 100 may acquire the sample modeling data 910 from a server or a database through the receiver 110 . The device 100 may determine a plurality of sample reference positions 920 on the sample model based on the acquired sample modeling data 910 . The plurality of sample reference positions 920 may be determined based on the tooth shape included in the sample model.

The device 100 may update the determined plurality of sample reference positions 920 according to the plurality of reference lines 810 . Specifically, the positions of the plurality of sample reference positions 920 may be updated to be located on the plurality of reference lines 810 . The device 100 may acquire the modeling data 940 based on the updated plurality of sample reference positions 930 . In this way, by updating the plurality of sample reference positions 920 of the sample model according to the plurality of reference lines 810 for adjacent teeth of the target teeth, unnecessary steps of predicting and implementing the overall shape of the target teeth can be omitted. , it is possible to easily acquire the modeling data 940 suitable for the target tooth through a relatively simple procedure by updating the positions of the maximum protuberance and the cusp apex based on the tooth shape of the sample model.

10 is a diagram schematically illustrating an example of re-updating a plurality of updated sample reference positions 930 based on a user input, according to an embodiment.

The device 100 may re-update the plurality of updated sample reference positions 930 based on a user input received through the receiver 110 . The user input may include a movement input to the plurality of updated sample reference positions 930 and an input to enlarge or reduce a range according to the updated plurality of sample reference positions 930 .

The device 100 may acquire a plurality of re-updated sample reference positions 1010 based on a user input, and may acquire modeling data 940 of a target tooth based thereon.

In the present disclosure, with reference to the above drawings, the above-described series of steps is described based on the upper jaw, but the maximum ridge, cusp and main groove can be obtained from the mandible, and the series of steps can be equally applied to the mandible. have.

11 is a diagram schematically illustrating an example of determining a plurality of reference positions when there are no adjacent teeth according to an embodiment.

Referring to the drawings, when the device 100 has no adjacent teeth (eg, edentulous state), the central point 1110 of the oral prominence in the maxilla, the central point of the canine teeth 1120, the reference point 1130 of the incisal edge of the anterior region, the papilla of the incisors ( 1140) and a plurality of reference positions including the lingual boundary point 1150 of the oral protrusion may be determined.

The anterior incisal edge reference point 1130 may represent a point located on the vertical line of the labia minora in the edentulous maxilla, and in another example, may represent a point of the 8 mm anterior portion from the center of the incisor papilla 1140 .

The position of the canine center point 1120 may be a point at which a vertical line extending in the canine direction from the incisor nipple 1140 (eg, a horizontal line indicated by a dotted line) and the fifth reference line 710 intersect. In addition, the position of the incisor papilla 1140 may be a point where a protrusion shape is located at a point adjacent to the inward cutting edge reference point 1130 in the maxillary oral cavity, and the center of the anterior cutting edge reference point 1130. It may be located on a vertical line extending from

The plurality of reference positions may include a central point 1110, a canine midpoint 1120, an anterior incisal edge reference point 1130, and an incisal papilla 1140 of the oral prominence, and a lingual boundary point 1150 of the oral prominence in the maxilla. may further include. The device 100 may determine a fifth reference line 710 that connects the midpoint 1110 of the oral cavity, the canine midpoint 1120, the anterior cut edge reference point 1130, and the lingual boundary point 1150 of the oral cavity. have. As shown in FIG. 11 , the fifth reference line 710 obtained when there is no adjacent value may represent a curve in which adjacent values are arranged when adjacent values exist.

In an embodiment, when there is no adjacent tooth to the target tooth, it may be in an edentulous state, and in this case, modeling data ( 940) may be desirable.

For example, in the case of an edentulous state, it may be preferable not to apply the step of obtaining the modeling data 940 based on the adjacent tooth because the adjacent tooth does not exist. Accordingly, when the modeling data 940 for the target tooth in the edentulous state is acquired, the step of acquiring the second reference line 520 to the fourth reference line 620 may be omitted, and the position of the lingual maximal protuberance may be omitted. A fifth criterion obtained by connecting the first reference line obtained based on the central point 1110, the midpoint of the canine teeth 1120, the anterior cut edge reference point 1130, and the lingual boundary point 1150 of the oral prominence It may be desirable to obtain the modeling data 940 for the target tooth by updating the sample modeling data 910 using only the line 710 .

According to an embodiment, the device 100 provides a plurality of alveolar adjustments corresponding to the position of the lingual maximal protuberance 320 along the first reference line 510 in the edentulous state (protruding portion of the gum in the edentulous state). The first reference line 510 may be determined based on the line connecting the positions of . In this case, since the reference line is determined only by the positions of the plurality of alveolar adjustments, a curve according to the arrangement of the teeth needs to be applied. Accordingly, the device 100 may determine the first reference line 510 according to the shape (curve) of the fifth reference line 710 indicating the curve for the tooth arrangement in the edentulous state.

Additionally, the device 100 may obtain a curve of Spee and a curve of wilson from the antagonist when there is an antagonist for the target tooth in the edentulous state. However, when the antagonist does not exist, the curve of the spine can be obtained based on the line of the edentulous gum. Since the Spie Curvature and Wilson Curvature represent the curvature of the tooth arrangement, it may be desirable to use them to obtain modeling data 940 for the target tooth.

The device 100 updates the plurality of sample reference positions 920 on the sample modeling data 910 based on the determined first reference line 510 , the fifth reference line 710 , and the additionally obtained Spie curve and Wilson curve. can do.

As such, the present disclosure updates the sample modeling data 910 based on the plurality of reference lines 810 obtained in the dental jaw state, and acquires the modeling data 940 accordingly, so that the target teeth with high accuracy according to a relatively concise procedure. The modeling data 940 can be acquired and, in addition, modeling data 940 for the target tooth can be acquired based on the plurality of reference lines 810 acquired in the edentulous state, so the target tooth in the edentulous state It is possible to effectively improve the problem of the prior art in which it is difficult to obtain suitable modeling data 940 for .

Meanwhile, the device 100 according to the above-described embodiment may include one or more processors 120 and/or one or more memories. In addition, although only essential components for describing the device 100 according to an embodiment are shown in FIG. 1 for convenience of description, a speaker (not shown) and a communication unit (not shown), such as a device corresponding to the invention, are configured Various conventional configurations for this purpose may be organically combined to perform the above-described operations in FIGS. 1 to 11 .

The memory may also include volatile and/or non-volatile memory. The one or more memories may store instructions that, when executed by the one or more processors 120 , cause the one or more processors 120 to perform an operation. In the present disclosure, programs or commands are software stored in a memory, and may include an operating system for controlling the resources of the server, middleware that provides various functions to the applications so that the applications and/or applications can utilize the resources of the device, etc. can

The one or more processors 120 may control at least one component of a device connected to the processor 120 by driving software (eg, a program or a command). In addition, the processor 120 may perform various operations, processing, data generation, processing, etc. related to the present disclosure. In addition, the processor 120 may load data or the like from or store data in the memory.

In an embodiment, at least one of the components of the device 100 may be omitted or another component may be added. In addition, additionally (additionally) or alternatively (alternatively), some of the components may be implemented integrally, or may be implemented as a singular or a plurality of entities.

The steps of the method or algorithm described in relation to the embodiment of the present invention may be implemented directly in hardware, implemented as a software module executed by hardware, or implemented by a combination thereof. A software module may include random access memory (RAM), read only memory (ROM), erasable programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), flash memory, hard disk, removable disk, CD-ROM, or It may reside in any type of computer-readable recording medium well known in the art to which the present invention pertains.

As mentioned above, although 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 can realize that the present invention can be embodied in other specific forms without changing the technical spirit or essential features thereof. you will be able to understand Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

100: device
110: receiver 120: processor
310: image
320: posterior lingual maximum prominence
330: the boundary between the anterior lingual teeth and the gums
340: buccal and labial maximal ridge
350: lingual cusp
360: anterior lingual maximal prominence
370: buccal cusp
380: anterior cut edge
410: position of the main groove
420: right leg of the mesial incisal edge of the canine
510: first reference line 520: second reference line
610: third reference line 620: fourth reference line
710: fifth reference line
810: a plurality of reference lines
910: sample modeling data
920: a plurality of sample reference positions
930: updated plurality of sample reference positions
940: modeling data
1010: Renewed plurality of sample reference positions
1110: the center point of the oral cavity 1120: the center point of the canine teeth
1130: anterior incisal margin reference point 1140: incisor papilla
1150: lingual boundary point of the orbital stage

Claims (10)

In the method of providing modeling data for a target tooth,
determining a plurality of reference positions including a maximum protuberance and a cusp on the adjacent teeth when there are adjacent teeth of the target tooth;
determining a plurality of reference lines based on the plurality of reference positions;
acquiring sample modeling data for the target tooth; and
and providing the modeling data obtained by updating the sample modeling data according to the plurality of reference lines.
The method of claim 1,
The method of claim 1, wherein the maximal crest comprises a lingual maximal crest and a buccal and labial maximal crest, and wherein the cusp comprises a lingual cusp and a buccal cusp.
The method of claim 1,
The step of determining the plurality of reference positions,
acquiring an image of the adjacent tooth; and
Determining the positions of the lingual maximal ridge, the buccal and labial maximal ridge, the lingual cusp, the buccal cusp and the main groove based on the acquired image;
The plurality of reference positions include positions of the lingual maximal cusp, the buccal and labial maximal ridges, the lingual cusp, the buccal cusp and the main groove.
The method of claim 1,
The step of determining the plurality of reference lines,
obtaining the plurality of reference positions including positions of the lingual maximum cusp, the buccal and labial maximum ridges, the lingual cusp, the buccal cusp and the main groove; and
A first reference line determined according to the position of the boundary between the lingual maximum posterior and anterior lingual teeth and gums, a second reference line determined according to the positions of the buccal and labial maximum projections, and the lingual cusp and anterior maximum lingual peaks A third reference line determined according to the position, a fourth reference line determined according to the positions of the buccal cusp and the anterior incisal edge, and a fifth reference line determined according to the positions of the right leg and the main groove of the mesial incisal edge of the canine are determined. including;
wherein the plurality of reference lines comprises the first through fifth reference lines.
The method of claim 1,
The step of providing the modeling data
determining a plurality of sample reference positions on a sample model based on the sample modeling data;
updating the plurality of sample reference positions according to the plurality of reference lines; and
Acquiring the modeling data based on the updated plurality of sample reference positions;
6. The method of claim 5,
The step of acquiring the modeling data is
re-updating the updated plurality of sample reference positions based on a user input; and
Acquiring the modeling data based on the re-updated plurality of sample reference positions.
The method of claim 1,
If there is no adjacent teeth, determining the plurality of reference positions including the midpoint of the oral prominence in the maxilla, the midpoint of the canine and the reference point of the incisal edge of the anterior region; further comprising, a method.
8. The method of claim 7,
Determining a fifth reference line connecting the central point of the oral cavity, the canine midpoint and the anterior cut edge reference point; further comprising,
wherein the plurality of reference lines comprises the fifth reference line.
8. The method of claim 7,
The plurality of reference positions further include a lingual boundary point of the oral protrusion in the maxilla, and determining a first reference line determined according to the shape of a fifth reference line; further comprising,
wherein the plurality of reference lines comprises the first reference line.
A device for providing modeling data for a target tooth,
a receiving unit for obtaining sample modeling data for the target tooth; and
When there is an adjacent tooth of the target tooth, a plurality of reference positions including a maximum ridge and a cusp apex are determined on the adjacent tooth, a plurality of reference lines are determined based on the plurality of reference positions, and the plurality of reference points are determined. A processor that provides the modeling data obtained by updating the sample modeling data according to a line; a device comprising a.

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