Computer-assisted transparent orthodontic appliance design program

Abstract

The present invention is characterized by including the steps of: (S01) generating and saving a plurality of images of teeth, in which sequential movement is set for each orthodontic stage, using a computer; (S02) displaying any one of the plurality of images of teeth; (S03) setting a reference line in the lateral direction of each tooth in the image of teeth displayed in step S02 to determine the overall shape of the transparent orthodontic appliance, and displaying the reference line; (S04) setting an incision line in the image of teeth displayed in step S02, the incision line being spaced a certain distance from the reference line in the gingival direction and corresponding to the end of the orthodontic appliance, and displaying the incision line; and (S05) displaying a first treatment image in which the transparent orthodontic appliance covering the upper and lower teeth is semi-transparently placed over the upper and lower teeth according to the incision line set in step S04.

Description

[Technical Field]

[0001] The present invention relates to a transparent corrective device used for orthodontic treatment, and to a method and program for designing a transparent corrective device using a computer. Specifically, this program uses a 3D scanner to scan the patient's oral structure, generates and saves information about the treatment image, and simultaneously displays the saved tooth image and the transparent orthodontic device to be designed, thereby designing a transparent orthodontic device optimized for the teeth to be orthodonticed. The manufacturing process for transparent orthodontic appliances, which are produced directly using a 3D printer, can be divided into a movement setting stage (setup stage), in which the teeth to be orthodontic treated are moved (and / or rotated) to the desired position, and a stage in which the transparent orthodontic appliance is designed for each setting stage. The present invention relates to a program for designing a transparent orthodontic appliance according to each stage of tooth movement setting for orthodontic treatment. [Background technology]

[0002] A conventional method for manufacturing an orthodontic appliance is as follows. First, the practitioner will assess the patient's oral structure and then create a dental model that matches the shape of the teeth. This is typically done by taking a mold of the patient's oral structure and then using plaster or other materials. The conventional technique is to hot-press a sheet of polyol material vertically onto the plaster dental model created in this way using a molding machine to create a transparent orthodontic device that is suitable for the patient. This manufacturing method requires manual work by a doctor and a dental technician, and because it is performed by a skilled dental technician, it takes a lot of time and effort, which ultimately increases the manufacturing costs of the orthodontic device. On the other hand, in recent years, a method has become widely used in which a 3D scanner is used to scan the patient's oral structure, save the information, and create a dental impression model based on the saved information. This method is a more advanced method than the traditional method of directly taking impressions of the teeth to create a dental impression model in order to understand the patient's dental structure. In other words, the dental clinic sends 3D scan data of the patient's tooth structure to the dental laboratory, which then creates a dental impression model based on the received information and presses the transparent orthodontic device into place. All of the methods introduced above involve first creating a dental impression model and then manufacturing orthodontic devices based on that model. These methods differ from the present invention in that they use a 3D printer to directly print the orthodontic devices, which does not require a dental impression model. The present invention relates to a program for designing transparent orthodontic appliances that are directly manufactured on a 3D printer. Summary of the Invention [Problem to be solved by the invention]

[0003] The technical objective of the computer-based transparent orthodontic appliance design program of the present invention is to significantly reduce the time and labor required for orthodontic appliance manufacturing and dramatically lower the cost of orthodontic appliances by enabling orthodontic appliances to be directly printed using a 3D printer without the need to create a separate dental impression model. The technical objective of the computer-based transparent orthodontic appliance design program of the present invention is to simplify the manufacturing process of orthodontic appliances by enabling orthodontic appliances to be manufactured directly at dental clinics without the need for the cumbersome process of cooperation between dental clinics and dental laboratories. The technical objective of the computer-based transparent orthodontic appliance design program of the present invention is to improve the comfort and usability of 3D-printed transparent orthodontic appliances by suggesting the shape, thickness, and inner spacing of the transparent orthodontic appliance to ensure optimal orthodontic force at each setup stage of the transparent orthodontic appliance. The technical objective of the computer-based transparent orthodontic appliance design program of the present invention is to enable more precise and easier manufacturing of transparent orthodontic appliances by designing the transparent orthodontic appliance while overlapping an image of the transparent orthodontic appliance on an image of the patient's dentition (hereinafter referred to as the "dentition") corresponding to each setup stage of the teeth to be orthodontic-corrected. [Means for solving the problem]

[0004] The present invention has been devised to solve the above-mentioned technical problems, and the means for solving the problems includes the following steps. A step of generating and storing a plurality of images of teeth in which the teeth to be corrected are sequentially moved for each correction stage (S01), and a step of displaying an arbitrary image of the teeth from among the plurality of images of teeth (S02). In the image of the dentition displayed in step S02, a horizontal reference line is set for each tooth to determine the overall shape of the transparent orthodontic appliance, and the reference line is displayed (S03). The incision line is formed at a position a certain distance away from the reference line in the gum direction. In the image of the dentition displayed in step S02, an incision line corresponding to the edge of the transparent orthodontic device is set and displayed (S04). A step (S05) in which a transparent orthodontic device is placed semi-transparently over the upper and lower dentition based on the incision line set in step S04, enveloping the upper and lower dentition. The first treatment image is displayed. Step S06: Inputting the overall distance between the dentition and the transparent orthodontic appliance in the first treatment image. Step S07: The interval value input in step S06 is reflected and a new second treatment image is displayed. A step (S08) of selecting a tooth to be corrected in the dentition, and correcting the distance between the tooth and the inner surface of the transparent orthodontic device in contact with the selected tooth to a value smaller than the distance input in step S06. Step S09: The interval value corrected in step S08 is reflected and a new third treatment image is displayed. Step (S10) of inputting the overall thickness value of the transparent correction device The thickness value input in step S10 is reflected and a new fourth treatment image is displayed (step S11). A step (S12) of selecting a tooth to be corrected in the dentition, and correcting the thickness of the transparent orthodontic device in the portion that contacts the selected tooth to a value greater than the thickness value in step S10. The thickness value corrected in step S12 is reflected and a new 5th treatment image is displayed (step S13). Step S14: Save the fifth treatment image created in step S13. [Effects of the Invention]

[0005] A computer-based transparent orthodontic appliance design program directly outputs orthodontic appliances using a 3D printer without creating a separate dental impression model, significantly reducing the time and labor required for orthodontic appliance manufacturing, dramatically improving production efficiency, and increasing product economy. Furthermore, the computer-based transparent orthodontic appliance design program of the present invention significantly reduces the need for cooperation between dental clinics and laboratories, allowing orthodontic appliances to be manufactured directly at dental clinics, thereby simplifying the orthodontic appliance manufacturing process. Furthermore, the computer-based transparent orthodontic appliance design program of the present invention allows users to change the shape of the transparent orthodontic appliance while viewing a composite treatment image in which the dentition and the transparent orthodontic appliance overlap according to each tooth movement setup (setup) stage, and visually confirm the changed treatment image in real time, making it easy to design an optimal transparent orthodontic appliance for the teeth to be orthodonticed. The computer-based transparent orthodontic appliance design program of the present invention improves the fit and usability of 3D-printed transparent orthodontic appliances by providing the shape, thickness, and spacing between the teeth and the inner surfaces of the transparent orthodontic appliance to ensure optimal orthodontic force for each setup stage. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a diagram showing the design procedure for a transparent correction device according to the present invention. [Figure 2] FIG. 2 is a diagram showing a design procedure for an attachment according to the present invention. [Figure 3] FIG. 3 shows the change in corrective force over time depending on the thickness of the transparent corrective device. [Figure 4] FIG. 4 is a diagram showing a transparent correction device according to the present invention with a button-type attachment formed thereon. [Figure 5] FIG. 5 shows a transparent correction device according to the present invention with a hook-type attachment formed thereon. [Figure 6] FIG. 6 is a diagram showing an embodiment of a transparent correction device according to the present invention. [Figure 7]FIG. 7 shows another embodiment of a transparent correction device according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0007] The present invention includes the following steps. A step (S01) of generating and saving a plurality of images of teeth in which the teeth to be orthodontic treated are sequentially moved for each orthodontic stage; a step (S02) of displaying any one of the plurality of images of teeth; a step (S03) of setting a horizontal reference line for each tooth in the image of teeth displayed in step S02 to determine the overall shape of the transparent orthodontic device and displaying the same; a step (S04) of setting a cutting line corresponding to the end of the orthodontic device in the image of teeth displayed in step S02, the cutting line being formed at a predetermined distance from the reference line in the gingival direction, and displaying the same; a step (S05) of displaying a first treatment image in which the transparent orthodontic device enveloping the upper and lower teeth is semi-transparently placed over the teeth based on the cutting line set in step S04; a step (S06) of inputting the overall distance between the teeth and the transparent orthodontic device in the first treatment image; The process includes a step of reflecting the distance value input in step S06 and displaying a new second treatment image (S07); a step of selecting a tooth to be corrected from the dentition and correcting the distance value between the tooth and the inner surface of the transparent orthodontic device for the portion of the transparent orthodontic device that contacts the selected tooth to a value smaller than the distance value input in step S06 (S08); a step of reflecting the distance value corrected in step S08 and displaying a new third treatment image (S09); a step of inputting an overall thickness value of the transparent orthodontic device (S10); a step of reflecting the thickness value input in step S10 and displaying a new fourth treatment image (S11); a step of selecting a tooth to be corrected from the dentition and correcting the thickness value for the portion of the transparent orthodontic device that contacts the selected tooth to a value larger than the thickness value input in step S10 (S12); and a step of reflecting the thickness value corrected in step S12 and displaying a new fifth treatment image (S13).

[0008] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The advantages and features of the present invention, as well as methods for achieving them, will become clearer with reference to the following detailed description of the embodiments, along with the accompanying drawings. However, the present invention is not limited to the embodiments described below, and can be embodied in various different forms. These embodiments are provided so that the disclosure of the present invention will be complete and the scope of the invention will be fully conveyed to those skilled in the art. Therefore, the scope of the present invention is defined by the claims. The present invention relates to a program for designing a transparent correction device using a computer. The computer referred to here includes various devices for performing calculations and providing results to a user, and is configured to include an input processing unit, a calculation unit, an output unit, etc. As used herein, "treatment images" refer to multidimensional images, such as two-dimensional and three-dimensional images, that show the overall arrangement of teeth, and include all images acquired using medical imaging techniques that use tomography. For example, various types of images, such as computed tomography (CT) images, nuclear magnetic resonance computed tomography (NMR) images, positron emission tomography (PET), cone beam CT (CBCT), and oral scanners, are included. Furthermore, "treatment images" include not only the original images that were acquired, but also two-dimensional or three-dimensional images that have been corrected using various additional reconstruction techniques. As used herein, "tooth to be corrected" refers to teeth that are improperly positioned or abnormally rotated and require repositioning and / or rotation through orthodontic treatment. In this specification, "lingual surface" refers to the side of a tooth that comes into contact with the tongue, "labial surface" refers to the side of a tooth that comes into contact with the lip, "buccal surface" refers to the side of a tooth that comes into contact with the inner surface of the cheek, "occlusal surface" refers to the upper surface of a molar or other tooth that directly chews food, and "incisal surface" refers to the obliquely sloping inner surface (the side surface that functions to cut food) of a tooth that does not have an occlusal surface (such as a front tooth). On the other hand, "bulge" refers to the part on the side of a tooth where the width in the lateral direction of the tooth is greatest.

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Step S01 is the step of generating and saving images of teeth that are sequentially set for each orthodontic stage. Teeth orthodontics is performed over a long period of time through gradual processes such as movement, rotation, insertion, and protrusion. As teeth are gradually corrected during the orthodontic treatment, transparent orthodontic appliances must be continuously replaced and fitted in sequence. In other words, teeth orthodontics is performed in dozens of stages, and each stage requires an appropriate orthodontic appliance. For example, if teeth orthodontic treatment is set to 20 stages, the practitioner sets the target teeth orthodontic values for each stage over time. Finally, 20 teeth images corresponding to the 20 stages are generated. A 3D scanner scans and saves the patient's teeth images, which are then sent to a computer and displayed. Among the displayed teeth images, the practitioner creates teeth images corresponding to the orthodontic goals for each stage. This process is called "set-up" in this invention. In other words, "set-up" refers to the process of setting the state of the teeth after orthodontic treatment is completed for each stage. In short, step S01 corresponds to a step of generating and storing dozens of images of dentition according to the practitioner's setup, and step S02 corresponds to a step of selecting and displaying any one image from the stored dozens of images of dentition. Step S03 is a step in which a reference line is set for each tooth in the transverse direction to determine the overall shape of the transparent orthodontic appliance, and then displayed. Here, the reference line can be modified by creating, connecting, extending, interrupting, or adjusting it depending on the tooth. The reference line can be used to determine how much of the tooth the transparent orthodontic appliance of the present invention will cover. Depending on the part of the tooth to be orthodontic-treated, the reference line may be the tip of the tooth, the connecting line of the tooth's ridge (the point where the tooth's circumference is at its maximum), or the boundary line with the gums. FIG. 6 shows one embodiment of a transparent orthodontic device based on the present invention, and FIG. 7 shows another embodiment of a transparent orthodontic device based on the present invention. For example, for teeth that do not require correction, the transparent orthodontic device can be partially omitted for those teeth by setting the tip of the tooth as the reference line or by setting the reference line to be generated only partially. FIG. 6 shows that when correction is not required for the back teeth on either side of the dentition, the orthodontic device for that portion is omitted. FIG. 7 shows that when correction is not required for the upper teeth of the entire dentition, the orthodontic device for that portion is omitted.

[0010] In addition, if the ridge of the tooth to be corrected is set as the reference line, the amount of correction required for each tooth can be met by setting different spacing and thickness values for the parts above and below the reference line.Furthermore, if a reference line is created that separates the left and right sides of the tooth to be corrected, the amount of correction required for each tooth can be met by setting different spacing and thickness values for the parts above and below the reference line. Step S04 is the step of creating the incision line. The incision line is set on the monitor and used to create the edge of the transparent orthodontic appliance. The incision line is created a certain distance away from the reference line toward the gum line. It can be set to various values, such as 1mm, 2mm, or 5mm. The position of this incision line is determined by comprehensively considering the amount of orthodontic force required for the corresponding tooth and the comfort of wearing the transparent orthodontic appliance. Step S05 is the step of displaying the first treatment image with transparent orthodontic appliances attached to completely cover the teeth, against the image of the dentition displayed on the screen. Here, the semi-transparent transparent orthodontic appliances that cover the dentition are displayed in a form that covers the upper and lower dentition according to the incision line set in Step S04. This display method can display the upper and lower dentition simultaneously or separately. The first treatment image shows the state of the transparent orthodontic appliances attached to the teeth (the image of the transparent orthodontic appliances is overlapped on the image of the teeth), and corresponds to the initial screen for designing the transparent orthodontic appliances. Step S06 is the step where the distance between the teeth and the transparent orthodontic appliance is entered in the first treatment image, and step S07 is the step where a new second treatment image is displayed with the entered distance. The distance between the teeth and the transparent orthodontic appliance directly affects the orthodontic force. If the distance is too small (too little space between the teeth and the orthodontic appliance), the teeth may not fit properly and the patient may experience severe pain during the orthodontic treatment. Conversely, if the distance is too large (the gap between the teeth and the orthodontic appliance is too large), the orthodontic appliance may fit easily, but the orthodontic force may decrease. Step S06 is the step where the overall distance between the teeth and the transparent orthodontic appliance is set, taking into account the overall fit and orthodontic force of the transparent orthodontic appliance. This is the process where the transparent orthodontic appliance is initially designed.

[0011] Step S08 is the step where you input a smaller value for the distance between the teeth and the inner surface of the transparent orthodontic device to apply the optimal orthodontic force and direction of action to the teeth to be orthodontic treated. Step S09 is the step where the distance value input in Step S08 is reflected and a new third treatment image is displayed. The distance between the transparent orthodontic appliance and the tooth to be orthodontic treated must be narrower than the other areas. This allows the appliance to fit more closely to the tooth to provide orthodontic force. The distance value can be entered by clicking the menu button on the screen and entering a value, by opening a separate window (pop-up) and entering a value, or by dragging the transparent orthodontic appliance on the screen with the mouse. Once the distance value between the tooth to be orthodontic treated and the transparent orthodontic appliance is entered, a third treatment video based on the input is instantly displayed on the screen, allowing the practitioner to visually confirm whether the distance between the transparent orthodontic appliance and each tooth is set appropriately. If an error is made, the distance value can be corrected in real time by immediately re-entering it. Tooth correction is achieved by movement and / or rotation, intrusion and / or extrusion. For example, teeth requiring rotational correction must be rotated to the desired angle by applying a moment to the tooth. Applying a rotational moment to the tooth requires a force that pushes the left and right teeth against each other in the lingual and labial (or buccal) directions. To exert this force, the set spacing value must be reduced (S201) or the set thickness must be increased (S202) in the direction of tooth extrusion. In essence, extruding a tooth requires a separate, smaller spacing value than the overall spacing value. Therefore, steps S201 and S202 correspond to the process of reducing or increasing the set spacing or thickness value in the direction of tooth extrusion, especially for teeth requiring rotational correction. The S301 and S302 stages are the design stages for transparent orthodontic devices, especially for teeth requiring extrusion correction.

[0012] When extrusion orthodontics is particularly required for teeth requiring orthodontic treatment, extrusion force must be applied to the teeth. To apply this extrusion force to teeth, the spacing value must be set smaller by a certain distance along the gum line, based on the tooth's ridge. In this case, using the ridge reference line as the bifurcation point, it is desirable to set the spacing value along the gum line 0.1–0.5 mm smaller than the spacing value along the tooth's edge. A difference greater than this value will prevent the desired extrusion force from being achieved. Conversely, setting the spacing value below this value will result in significant issues with the device's wearability. This type of extrusion orthodontic treatment would not have been possible with conventional transparent orthodontic devices using a sheet compression method (which can result in undercuts at the connection between the tooth and gum). This is a unique benefit of this invention. Step S10 is the step where the overall thickness of the transparent orthodontic device is entered. Step S11 reflects the thickness value entered in Step S10 and displays a new fourth treatment image. This is the process of entering and displaying the overall thickness while visually checking its suitability in real time to determine the overall thickness of the transparent orthodontic device. In step S12, the thickness values of the transparent orthodontic device's contact points with the target teeth are individually adjusted and input. In step S13, the thickness values input in step S12 are reflected and a new fifth treatment image is displayed. A certain thickness is required for the transparent orthodontic device to compress the target teeth and cause tooth position change (or tooth rotation). A minimum thickness of a transparent orthodontic device will not achieve the desired orthodontic effect. However, excessively thickening the device solely to ensure corrective force not only results in a very uncomfortable wearing experience for the patient, but also makes it impossible to achieve additional orthodontic force once the thickness exceeds a certain level. In the orthodontic treatment using transparent orthodontic devices, teeth are gradually corrected. Once the target position or rotation is reached, the next stage of the transparent orthodontic device is replaced and fitted. The new transparent orthodontic device then performs the next stage of correction. Therefore, transparent orthodontic devices must be replaced at regular intervals between each stage.

[0013] Figure 3 shows the time variation of the correction force depending on the thickness of the transparent correction device. The minimum thickness of a transparent orthodontic device (the part that comes into contact with the teeth being orthodontic) that determines how much orthodontic force it can maintain over the 7 to 14 day period that is the typical replacement cycle for transparent orthodontic devices, is 0.3 mm, and results have shown that if it is 1 mm or thicker, patients will feel quite uncomfortable wearing it and it will not actually exert any more orthodontic force. For this reason, it is recommended that the thickness of the part of the transparent orthodontic device that comes into contact with the teeth being orthodontic should be at least 0.3 mm, preferably not exceeding 1 mm, with 0.3 to 0.7 mm being even more desirable. On the other hand, as already explained, if extrusion correction is required, a method of adjusting the spacing value can be used. Positive force can also be introduced to the tooth targeted for extrusion correction by increasing the thickness by a predetermined distance in the gum direction on a reference line based on the flavor portion of the tooth. For example, the flavor portion reference line can be used as a branch point and the thickness can be increased by 1 to 2 mm in the gum direction. This creates a difference in orthodontic force between the upper and lower teeth around the reference line, introducing positive force to the tooth, and the transparent orthodontic device based on this invention achieves extrusion correction. Like the method for entering the spacing value, the thickness can also be entered using menu settings or a separate pop-up window (pop-up). Since this has already been explained, the input method will not be described below. In step S13, the fifth treatment image generated in step S12 is saved, and in step S14, the saved fifth treatment image and the sixth treatment image saved in step S105 are sent to the patient's device. The patient can preview the transparent orthodontic device they will be wearing in 2D or 3D images through their own device (which may require a specific app to be installed in advance). The fifth treatment image, saved in step S14, can be a two-dimensional image such as a cross-section, or a three-dimensional image. These images can be sent to a 3D printer or other device to be used to create transparent orthodontic appliances.

[0014] On the other hand, some patients have severe malocclusion, and in such cases, it may be necessary to ensure additional corrective force in addition to ensuring corrective force by setting the spacing and thickness of the transparent orthodontic device.Step S101 is a step in which it is selected whether to add a button-shaped attachment that is attached to the inner surface of the transparent orthodontic device that comes into contact with the teeth to be corrected. As shown in Figure 4, the button-shaped attachments are protruding and are formed on the inner surface of the transparent orthodontic device. They exert a stronger orthodontic force on the teeth being orthodontic treatment, resulting in effective orthodontic treatment. When additional orthodontic force is required in addition to the normal orthodontic force, selecting a button-shaped attachment allows for the design of a transparent orthodontic device with stronger orthodontic force. Figure 4 shows a transparent orthodontic device with attachments installed to apply a rotational moment to the teeth being orthodontic treatment, thereby guiding tooth rotational correction. The attachments are installed on the inner surface of the transparent orthodontic device, and on the opposite side, they apply a rotational moment to the teeth. The location of these attachments can be designed in various ways, other than those shown in Figure 4, depending on the environment of the teeth being orthodontic treatment. Figure 4 is merely one example of the present invention. Step S102 is the step where you choose whether to add a hook-shaped attachment that is attached to the outside of the transparent orthodontic device that comes into contact with the teeth to be corrected. When additional orthodontic force is required on the teeth being corrected, hook-type attachments attached to the outside of the transparent orthodontic appliance may be used, as shown in Figure 5. Hook-type attachments differ from the button-type attachments mentioned above in that they are formed on the outside of the transparent orthodontic appliance. Of course, it is possible to use both attachments together in some cases. Step S103 is a step of setting the shape, size, and attachment position of the button-type and hook-type attachments selected in steps S101 and S102, and step S104 is a step of finally displaying the modified sixth treatment image. For example, the shape of the button-type attachments can be modified into various shapes, such as circular, square, and diamond, and their size (cross-sectional area) can also be freely changed depending on the environment of the teeth to be orthodontic treated. All such modifications are within the technical scope of the present invention. Step S103 is a step of determining the size (protrusion, surface area, etc.) and position of button-type and / or hook-type attachments if the use of button-type and / or hook-type attachments is determined. Upon completion of this process, the sixth treatment image is completed and saved. It will be apparent to those skilled in the art that the button-type and hook-type attachments described herein can be modified in various types and shapes. It is also possible to create a separate folder listing button-type and hook-type attachments of various shapes and sizes, and open the folder as needed to display them overlaid on the display screen. Therefore, such modifications are merely variations of the present invention, do not deviate from the technical gist of the present invention, and naturally fall within the scope of the present invention.

[0015] The program based on the present invention, a computer program (also referred to as a program, software, software application, or code), includes machine instructions for a programmable processor and can be implemented using high-level process and / or object-oriented programming languages, and / or assembly / machine languages. The steps described herein can be executed in parallel, sequentially, or in a different order. There are no particular limitations as long as the results of the technology disclosed in this application can be achieved. The specific embodiments described above do not limit the scope of protection of this application. Those skilled in the art may make various modifications, combinations, subcombinations, and substitutions based on design requirements and other factors. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application are within the scope of protection of this application.

Claims

1. A step of generating and saving a plurality of dentition images in which teeth to be corrected are sequentially moved for each orthodontic stage (S01); a step of displaying any one of the plurality of dentition images (S02); a step of setting a lateral reference line for each tooth in the dentition image displayed in step S02 to determine the overall shape of the transparent orthodontic device and displaying this (S03); a step of setting a cutting line, which is formed at a certain distance from the reference line in the gum direction and corresponds to the end of the orthodontic device in the dentition image displayed in step S02, and displaying this (S04); a step of displaying a first treatment image showing the transparent orthodontic device semi-transparently covering the upper and lower dentition according to the cutting line set in step S04; Step (S06) of inputting the overall distance between the dentition and the transparent orthodontic device in the first treatment image; Step (S07) of displaying a new second treatment image by reflecting the distance value input in step S03; Step (S08) of selecting the teeth to be corrected in the upper and lower dentition, and correcting the distance value between the teeth and the inner surface of the transparent orthodontic device for the portion of the transparent orthodontic device that contacts the selected teeth to a distance value smaller than the distance value input in step S06; Step (S09) of displaying a new third treatment image by reflecting the distance value corrected in step S08; Step (S10) of inputting the overall thickness value of the transparent orthodontic device; Step (S11) of displaying a new fourth treatment image by reflecting the thickness value input in step S10; A program for designing a transparent orthodontic device using a computer, stored on a medium, for executing the steps of: selecting teeth to be corrected in the upper and lower dentitions, and correcting the thickness value of the portion of the transparent orthodontic device that contacts the selected teeth to a value greater than the thickness value in step S10 (S12); reflecting the thickness value corrected in step S09 and displaying a new fifth treatment image (S13); and saving the fifth treatment image generated in step S13 (S14).

2. Execute all of steps S01 to S014 described in paragraph 1, A step of selecting whether to add a button-shaped attachment to be attached to the inside of the transparent orthodontic appliance that contacts the tooth to be orthodontic treated (S101); A step of selecting whether to add a hook-shaped attachment to be attached to the outside of the transparent orthodontic appliance that contacts the tooth to be orthodontic treated (S102); If it is selected in steps S101 and S102 that a button-type attachment or a hook-type attachment is to be added, a step of setting the shape, size and attachment position of the selected button-type attachment and hook-type attachment (S103); A step of displaying the sixth treatment image corrected in step S103 (S104); Step S105: storing the sixth treatment image generated in step S104; A program for designing a transparent orthodontic device using a computer, characterized in that the program is stored on a medium in order to execute the above.

3. Item 1 or 2, The reference line is In the case of the maxillary dentition, It is formed at one of the following points: the lower end of the tooth, the point where the tooth bulges, or the boundary between the tooth and the gums. In the case of the mandibular dentition, It is characterized by being formed at any one of the upper end of the tooth, the point where the tooth protrudes, or the boundary between the tooth and the gum. A program for designing transparent orthodontic devices using a computer.

4. In claim 3, The transparent orthodontic device includes a step (S201) of further reducing the set gap value in the direction of pushing the tooth, or a step (S202) of further increasing the set thickness value in the portion that contacts the tooth to be corrected and requires rotational correction. A program for designing transparent orthodontic devices using a computer.

5. In claim 3, Regarding the portion of the orthodontic appliance that contacts the tooth requiring extrusion, A step (S301) of further reducing the spacing value for a portion corresponding to a length of up to 2 mm from the reference line in the gingival direction, which corresponds to the tooth ridge; and The method further includes a step (S302) of displaying the interval value according to the interval value corrected in the step S201. A program for designing transparent orthodontic devices using a computer.

6. In claim 4, The step S12 The input thickness value is determined within the range of 0.3 mm to 0.7 mm. stored on a medium, A program for designing transparent orthodontic devices using a computer.

7. In claim 5, The step S12 The input thickness value is determined within the range of 0.3 mm to 0.7 mm. A program for designing transparent orthodontic devices using a computer.

8. In claim 6 or claim 7, The method further includes a step (S15) of transmitting the fifth and sixth treatment images stored in the steps S14 and S105 to a patient's terminal. A program for designing transparent orthodontic devices using a computer.

Images