Method and apparatus for establishing implant surgery plan

Abstract

A method and an apparatus for establishing an implant surgery plan are disclosed. The method and the apparatus for establishing an implant surgery plan, according to an embodiment, may involve generating an implant placement boundary region that presents a boundary where an implant can be placed, on the basis of anatomical structure information segmented from dental imaging data and displaying the implant placement boundary region, thereby enabling the placement of an implant within the generated implant placement boundary region.

Description

Method for establishing implant surgery plan and device therefor

[0001] The present invention relates to a dental image data processing technology, and more particularly, to a user interface technology for establishing an implant surgery plan based on dental image data.

[0002] Dental implants not only restore single missing teeth, but also enhance the function of dentures in patients with partial or complete edentulism. They also improve the aesthetics of dental prosthetics. Furthermore, they help distribute excessive stress on the surrounding supporting bone tissue and stabilize the dentition.

[0003] The placement of implants is determined by a variety of factors, including the patient's dental condition, the location of the teeth requiring implant surgery, and the condition of the patient's alveolar bone. For example, the placement and direction of implants are determined based on the condition of the patient's alveolar bone. However, the surgeon's experience is crucial in this process. Inexperienced surgeons often face difficulties with implant placement.

[0004] According to one embodiment, the present invention proposes a method and device for establishing an implant surgery plan that can improve the accuracy and precision of implant placement and minimize user modifications.

[0005] A method for establishing an implant surgery plan according to one embodiment includes a step of acquiring dental image data of a patient for implant placement, a step of segmenting an anatomical structure from the acquired dental image data, and a step of generating an implant placement boundary area that presents a boundary for implant placement according to an implantation criterion including at least one of an implantation direction, an implantation location, and an implantation depth based on the segmented anatomical structure information.

[0006] The step of generating an implant placement boundary area may include a step of generating an implant placement direction boundary area that indicates an implant placement direction, a step of generating an implant placement location boundary area that indicates an implant placement location within the determined implant placement direction boundary area, and a step of generating an implant placement depth boundary area that indicates an implant placement depth within the determined implant placement location boundary area.

[0007] In the step of creating an implant placement direction boundary area, an implant placement direction boundary area can be created with at least one of the axial directions of the adjacent teeth and opposing teeth of the tooth on which the implant is to be placed as the placement direction.

[0008] In the step of creating an implant placement location boundary area, the implant placement location boundary area can be created by reducing the size of the implant placement direction boundary area so that the implant diameter is formed within a predetermined distance from the adjacent teeth.

[0009] In the step of creating an implant placement location boundary area, the implant placement location boundary area can be created by reducing the size of the implant placement direction boundary area so that the implant diameter is formed within a predetermined distance from the adjacent implant.

[0010] In the step of creating an implant placement location boundary area, the implant placement location boundary area can be created by reducing the size of the implant placement direction boundary area so that the implant diameter is formed at a predetermined distance from the contact distance of the buccal and lingual bones of the implant placement direction boundary area.

[0011] In the step of creating an implant placement location boundary area, the implant placement location boundary area can be created by reducing the size of the implant placement direction boundary area to have an implant diameter within a distance that is a predetermined distance from the contact distance of the buccal and lingual bones of the implant placement direction boundary area and a distance that does not contact the lingual surface of the implant placement direction boundary area based on the incisive canal.

[0012] In the step of creating an implant placement depth boundary area, the implant placement depth boundary area can be created based on the maxillary sinus, inferior alveolar nerve, and opposing teeth.

[0013] The method for establishing an implant surgery plan may further include a step of marking the created implant placement boundary area.

[0014] The method for establishing an implant surgery plan may further include a step of implanting an implant, and, if the implanted implant invades an implant implantation boundary area, a step of providing an implant having implant information with a maximum value close to a value set by a user within the implant implantation boundary area.

[0015] A method for establishing an implant surgery plan may further include a step of implanting an implant, a step of displaying a manipulator for modifying the implanted implant within an implant implantation boundary area, a step of receiving a user manipulation signal for selecting a predetermined implant modification interface within the manipulator, and a step of modifying the implant according to a predetermined unit set upon receiving the user manipulation signal.

[0016] The implant modification interface includes at least one of a diameter modification interface, a depth modification interface, a position modification interface, and a direction modification interface, wherein the position modification interface includes an up, down, left, and right movement interface, and the direction modification interface may include a rotation interface.

[0017] In the step of modifying an implant, if the modified implant invades the final implant placement boundary area, the implant modification interface can be disabled to prevent the implant from invading the final implant placement boundary area.

[0018] The method for establishing an implant surgery plan may further include a step of creating an abutment implantation boundary area according to the system of the implanted implant after implantation, and a step of marking the created abutment implantation boundary area.

[0019] In the step of creating an abutment implantation boundary area, an abutment implantation boundary area is created using an abutment conditional formula, and the abutment conditional formula tangent alpha (Tan α) may be a value obtained by dividing the value obtained by subtracting the inner diameter of the implant from the diameter value (D) of the abutment by half, and dividing this value by the G / H of the abutment.

[0020] A method for establishing an implant surgery plan may further include a step of implanting an abutment, a step of displaying an abutment manipulator for modifying the implanted abutment within an abutment implantation boundary area, a step of receiving a user manipulation signal for selecting a predetermined abutment modification interface within the abutment manipulator, and a step of modifying the abutment within set specifications upon receiving the user manipulation signal.

[0021] The abutment modification interface may include at least one of a diameter modification interface, a G / H modification interface, a height modification interface, and a type modification interface.

[0022] In the step of modifying the abutment, if the modified abutment invades the final abutment implantation boundary area, the abutment modification interface can be disabled to prevent the abutment from invading the final abutment implantation boundary area.

[0023] The method for establishing an implant surgery plan may further include a step of implanting an abutment, and, if the implanted abutment invades the abutment implantation boundary area, a step of providing an abutment having a maximum abutment information close to a value set by a user within the abutment implantation boundary area.

[0024] According to another embodiment, an implant surgery planning device includes an input unit for receiving a tooth on which an implant is to be implanted, a data acquisition unit for acquiring dental image data of a patient for implant implantation of a tooth, a display unit for displaying a screen, and a control unit for segmenting an anatomical structure from the acquired dental image data, and then generating an implant implantation boundary area that presents a boundary on which an implant can be implanted based on an implantation criterion including at least one of an implantation direction, an implantation position, and an implantation depth based on the segmented anatomical structure information.

[0025] According to one embodiment, the present invention provides an implant placement boundary area that indicates a boundary for implant placement when establishing an implant surgery plan, so that an implant can be placed within the implant placement boundary area. Furthermore, the present invention provides an abutment placement boundary area that indicates a boundary for abutment placement, so that an abutment can be placed within the abutment placement boundary area.

[0026] The present invention provides a manipulator capable of modifying an implant within the implant placement boundary area or modifying an abutment within the abutment placement boundary area, thereby enabling a user to safely select an implant or an abutment within the implant placement boundary area or the abutment placement boundary area. This improves user convenience.

[0027] The present invention utilizes deep learning, which has shown high accuracy in the field of image recognition, to segment anatomical structures such as teeth, jaw bones, maxillary sinuses, and inferior alveolar nerve canals from a patient's dental image data, and recognizes these to enable accurate implant placement.

[0028] Figure 1 is a drawing showing the configuration of an implant surgery planning device according to one embodiment of the present invention;

[0029] Figure 2 is an example drawing of CT data and scan data according to one embodiment of the present invention;

[0030] FIG. 3 is a drawing showing a screen for aligning CT data and scan data according to an embodiment of the present invention;

[0031] FIG. 4 is a drawing showing a screen for segmenting anatomical structures from dental image data according to an embodiment of the present invention.

[0032] FIG. 5 is a drawing showing a screen for segmenting anatomical structures from dental image data according to another embodiment of the present invention.

[0033] FIG. 6 is a drawing showing a screen for determining a tooth requiring implant placement according to one embodiment of the present invention.

[0034] FIG. 7 is a diagram that organizes in a table the criteria and implant placement boundary area related to the implant system and implant placement simulation by the lost area corresponding to the tooth number where the implant is to be placed according to one embodiment of the present invention.

[0035] FIG. 8 is a drawing illustrating a dental crown data generated by segmentation processing from scan data according to an embodiment of the present invention.

[0036] FIG. 9 is a drawing showing a screen for creating an implant placement direction boundary area according to one embodiment of the present invention.

[0037] FIG. 10 is a drawing showing a screen for creating an implant placement location boundary area according to one embodiment of the present invention.

[0038] FIG. 11 is a drawing showing a screen for creating an implant implantation depth boundary area according to an embodiment of the present invention.

[0039] FIG. 12 is a drawing showing a final implantable area generated according to one embodiment of the present invention;

[0040] FIG. 13 is a drawing showing an enlarged area of ​​interest of FIGS. 9 to 12 according to an embodiment of the present invention;

[0041] FIG. 14 is a drawing showing a screen for modifying a planted implant according to one embodiment of the present invention;

[0042] FIG. 15 is a drawing showing an abutment condition formula according to an embodiment of the present invention;

[0043] FIG. 16 is a drawing showing an example of activating an abutment manipulator according to an alpha value of tangent alpha according to an embodiment of the present invention;

[0044] FIG. 17 is a drawing showing an abutment implantation boundary area determined according to a system of an implanted implant according to one embodiment of the present invention.

[0045] FIG. 18 is a drawing illustrating an abutment manipulator according to one embodiment of the present invention;

[0046] FIG. 19 is a diagram illustrating a flow chart of a method for establishing an implant surgery plan according to one embodiment of the present invention.

[0047] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0048] In describing embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the gist of the present invention, such detailed description will be omitted. The terms described below are terms defined in consideration of functions in embodiments of the present invention, and these may vary depending on the intention or custom of the user or operator. Therefore, the definitions should be made based on the contents throughout this specification.

[0049] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the embodiments of the present invention exemplified below may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art.

[0050] FIG. 1 is a drawing illustrating the configuration of an implant surgery planning device according to one embodiment of the present invention.

[0051] Referring to Fig. 1, the implant surgery planning device (100) is an electronic device capable of executing a medical image processing program. Electronic devices include personal computers (PCs), laptops, tablets, and smartphones. Medical image processing programs include guide design programs, scanning programs, and CAD programs. Furthermore, the device can be applied to other general medical image processing programs in addition to those for dental implant surgery.

[0052] The image processing process using the program may vary depending on the commercialized product, but generally includes the following processes: registering a surgical patient, acquiring CT data and scan data of the registered patient, matching the CT data and scan data, creating a jaw line from the matched dental image data, creating a panoramic image using the jaw line, arranging crowns from the patient's scan data, placing an implant from the patient's CT data, designing a guide shape, and outputting an actual guide. The present invention corresponds to the implant placement step in the above process.

[0053] An implant surgery planning device (100) according to one embodiment includes a data acquisition unit (101), a storage unit (102), a control unit (103), an input unit (104), a display unit (105), and an output unit (106).

[0054] The data acquisition unit (101) acquires the patient's dental image data. The dental image data may include CT data, scan data, etc. The data acquisition unit (101) may acquire the dental image data through a linked medical imaging device (not shown) or a separate database.

[0055] The input unit (104) receives a user operation signal. At this time, the input unit (104) can receive a user operation signal for a user interface (IF, hereinafter referred to as 'IF') displayed on the screen. When the display unit (105) displays a manipulator for modifying a planted implant or abutment, the input unit (104) can receive a user operation signal for modification through the manipulator displayed on the screen.

[0056] The display unit (105) displays information on the screen. For example, the display unit (105) can display dental image data on the screen. At this time, the dental image data can include scan data acquired through the data acquisition unit (101), CT data, data obtained by matching at least two pieces of data, panoramic data generated from the matching data, etc. The display unit (105) can display crowns, implants, abutments, drilling holes, guides, etc. by overlaying them on the dental image data. At this time, the crowns, implants, abutments, drilling holes, guides, etc. are virtual objects. The display unit (105) can display a manipulator to facilitate user modification through the input unit (104).

[0057] The output unit (106) can output an actual guide corresponding to the virtual guide shape designed by the control unit (103) through a 3D printer or milling equipment, etc. Here, the designed implant surgery guide shape can have an input data format of the 3D printer or milling equipment, and the 3D printer or milling equipment can output an actual implant surgery guide based on the input implant surgery guide shape.

[0058] The storage unit (102) stores various data, such as information required for the operation of the implant surgery planning device (100) and information generated according to the operation. For example, the storage unit (102) stores a patient's dental image data, and can provide this to the control unit (103) upon user request.

[0059] According to one embodiment, a control unit (103) segments anatomical structures from a patient's dental image data. The anatomical structures may be maxillary teeth, mandibular teeth, maxillary jawbone, mandibular jawbone, nerve canal, maxillary sinus, etc. An embodiment of segmenting anatomical structures will be described below with reference to FIG. 4.

[0060] The control unit (103) generates an implant placement boundary area where implant placement is possible based on segmented anatomical structures. For example, the control unit (103) generates an implant placement boundary area based on an implantation criterion including at least one of implant placement direction, implantation location, and implantation depth based on segmented anatomical structure information.

[0061] The implant placement boundary area is the area that indicates the boundaries for implant placement. It is hexahedral in 3D images and rectangular in 2D images. The implant placement boundary area includes the implant placement direction boundary area, the implant placement position boundary area, and the implant placement depth boundary area.

[0062] The implant placement direction boundary area indicates the implant placement direction. The implant placement location boundary area indicates the implant placement location and is created within the implant placement direction boundary area.

[0063] The implant placement depth boundary area indicates the implant placement depth and is created within the implant placement location boundary area.

[0064] The control unit (103) generates an implant placement direction boundary area in the shape of the largest hexahedron that includes the received missing tooth area, and generates an implant placement location boundary area whose size is reduced from the implant placement direction boundary area. Subsequently, the control unit (103) generates an implant placement depth boundary area whose size is reduced from the implant placement location boundary area. The implant placement depth boundary area corresponds to the final implant placement boundary area.

[0065] The control unit (103) can implant an implant based on dental image data. At this time, if the implanted implant invades the implant implantation boundary area, the control unit (103) can provide an implant having implant information with a maximum value close to a value set by the user within the implant implantation boundary area. The control unit (103) can modify the implant through a user operation signal that selects a predetermined implant modification interface within the manipulator.

[0066] Furthermore, the control unit (103) can implant an abutment based on dental image data. At this time, if the implanted abutment invades the abutment implantation boundary area, the control unit (103) can provide an abutment having a maximum abutment information close to a value set by the user within the abutment implantation boundary area. The control unit (103) can modify the implant through a user manipulation signal that selects a predetermined abutment modification interface within the manipulator.

[0067] FIG. 2 is an example diagram of CT data and scan data according to one embodiment of the present invention.

[0068] Referring to FIGS. 1 and 2, the implant surgery planning device (100) receives a tooth number requiring implant placement. At this time, the implant surgery planning device (100) can receive the tooth number from a patient management program (Practice Management System: PMS).

[0069] Next, the implant surgery planning device (100) can request and receive dental image data of the patient from an external device for implant placement of the received tooth.

[0070] The patient's dental image data may be CT data (201) and scan data (202). The scan data (202) may be oral scan data obtained using an oral scanner. Alternatively, it may be data obtained by taking an impression using an impression material and then scanning the impression, or data obtained by pouring plaster on the impression to create a plaster model and then scanning the model.

[0071] FIG. 3 is a drawing illustrating a screen for aligning CT data and scan data according to one embodiment of the present invention.

[0072] Referring to FIGS. 1 and 3, the implant surgery planning device (100) can align CT data (201) and scan data (202) of a patient with different coordinate information. If the patient is edentulous, the implant surgery planning device (100) can create an alignment point at a predetermined location (e.g., a resin marker) to align the two data (201, 202). In contrast, in the case of a partial edentulous patient with some teeth remaining, the implant surgery planning device (100) can align the two data (201, 202) using the feature points of the teeth. For example, the implant surgery planning device (100) can manually align by selecting a 1-point or 3-point point (300) by a user operation signal. Reference numeral 301 of FIG. 3 is a screen illustrating the alignment process, and reference numeral 302 is a screen illustrating the result of the completed alignment. At this time, the data in which CT data (201) and scan data (202) are aligned is referred to as ‘aligned data’.

[0073] FIG. 4 is a drawing illustrating a screen for segmenting anatomical structures from dental image data according to an embodiment of the present invention.

[0074] Referring to FIGS. 1 and 4, the implant surgery planning device (100) can segment anatomical structures based on dental image data, for example, CT data (201) aligned with scan data (202). The implant surgery planning device (100) can segment anatomical structures using an artificial neural network of artificial intelligence. For example, the implant surgery planning device (100) can learn anatomical structures of patients based on CT data of previous patients, and then segment anatomical structures using the learning results. The anatomical structures may be maxillary teeth (400), mandibular teeth (405), maxillary jawbone (401), mandibular jawbone (402), nerve canal (403), maxillary sinus (404), etc.

[0075] FIG. 5 is a drawing illustrating a screen for segmenting anatomical structures from dental image data according to another embodiment of the present invention.

[0076] Referring to FIGS. 1 and 5, the implant surgery planning device (100) can segment anatomical structures using dental image data, for example, scan data (202). The anatomical structures may be an upper jaw gum (510), a lower jaw gum (520), an upper jaw crown (530), a lower jaw crown (540), etc.

[0077] The implant surgery planning device (100) generates a segmented tooth in the form of a hexahedron (501) on the scan data (202) from the CT data in a state where the CT data and the scan data are aligned. Then, the implant surgery planning device (100) generates a cross-section (502) in the axial direction within the hexahedron (501) to generate an inflection point between the tooth and the gum. Then, the implant surgery planning device (100) segments the crown and gum of the scan data by connecting the inflection points.

[0078] Meanwhile, if teeth are attached to adjacent teeth, the crown data must be separated. In this case, the implant surgery planning device (100) creates a hexahedron on the CT data while aligning the CT data and the scan data to separate the tooth area. Next, the implant surgery planning device (100) determines the overlapping part between adjacent teeth as a separation area and then removes the separation area. Next, the implant surgery planning device (100) creates a separation area cross-section, creates a cross-section that contacts the midpoint of the separation area, and processes it to be convex, thereby separating the crown data attached to adjacent teeth.

[0079] FIG. 6 is a drawing illustrating a screen for determining a tooth requiring implant placement according to one embodiment of the present invention.

[0080] Referring to FIGS. 1 and 6, the implant surgery planning device (100) can number each individual tooth based on the tooth information segmented from CT data and scan data. Next, the implant surgery planning device (100) can use the tooth number (600) requiring implant placement when placing the implant by matching it with the information received by the user's selection. The tooth number requiring implant placement can be obtained from the patient management program (PMS). Examples of the information (602) received by the user's selection include an extraction button, an implant button, and a maxillary sinus lift button.

[0081] FIG. 7 is a diagram that organizes criteria and implant placement boundary areas related to the implant system and implant placement simulation by lost area corresponding to the tooth number where an implant is to be placed according to one embodiment of the present invention.

[0082] Referring to FIGS. 1 and 7, the implant surgery planning device (100) checks the tooth number for implant placement from the patient management program (PMS) in the matching data, and determines whether the tooth requires implant placement after extraction or is a lost tooth requiring immediate implant placement based on the location of the tooth number for implant placement. The location of the tooth number for implant placement can be determined based on whether it is an anterior or posterior region, or maxillary or mandibular.

[0083] Next, the implant surgery planning device (100) applies different criteria (703) related to implant placement simulation depending on the classification results. The criteria (703) related to implant placement simulation are as follows.

[0084] The implant placement direction, placement location, and placement depth can be considered.

[0085] Depending on the loss site corresponding to the tooth number where the implant is to be placed from the PMS, the implant system and the implant length, implant diameter, and implant G / H (Gingiva Height) within the implant system can be considered.

[0086] Referring to FIG. 7, the implant surgery planning device (100) receives and confirms the tooth number of the tooth to be implanted from the PMS. Next, the implant system (720) is determined based on the location of the missing area (710) corresponding to the confirmed tooth number. At this time, the location of the missing area (710) can be classified into maxillary anterior teeth, maxillary molars, mandibular anterior teeth, and mandibular molars.

[0087] The anterior teeth include #11 maxillary right central incisor, #12 maxillary right lateral incisor, #13 maxillary right canine, #21 maxillary left central incisor, #22 maxillary left lateral incisor, #23 maxillary left canine, #31 mandibular left central incisor, #32 mandibular left lateral incisor, #33 mandibular left canine, #41 mandibular right central incisor, #42 mandibular right lateral incisor, and #43 mandibular right canine.

[0088] The molars include #14 maxillary right first premolar, #15 maxillary right second premolar, #16 maxillary right first molar, #17 maxillary right second molar, #24 maxillary left first premolar, #25 maxillary left second premolar, #26 maxillary left first molar, #27 maxillary left second molar, #34 mandibular left first premolar, #35 mandibular left second premolar, #36 mandibular left first molar, #37 mandibular left second molar, #44 mandibular right first premolar, #45 mandibular right second premolar, #46 mandibular right first molar, and #47 mandibular right second molar.

[0089] The implant system (720) is provided with an Internal Submerged Type (indicated as TS and KS in the drawing), an External Submerged Type (indicated as US in the drawing), and a OneBody Non Submerged Type (indicated as MS in the drawing) when the lost area (710) is an upper jaw anterior tooth and a lower jaw anterior tooth.

[0090] In the case where the lost area (710) is an upper molar and a lower molar, an implant system (720) is provided in the form of an Internal Submerged Type (indicated as TS and KS in the drawing), an External Submerged Type (indicated as US in the drawing), and an Internal Non Submerged Type (indicated as SS in the drawing).

[0091] Once the implant system (720) is determined, the implant surgery planning device (100) can provide implant information of the implant existing in the determined implant system (720). The implant information can include implant length, implant diameter, and implant G / H information. At this time, the implant surgery planning device (100) can provide different implant information for each implant company according to a user-set value. Implant G / H information is additionally provided only in the Non-Submerged Type, and can also be additionally provided in the manipulator. The Non-Submerged Type corresponds to the Internal Non-Submerged Type (indicated as SS in the drawing) and the OneBody Non-Submerged Type (indicated as MS in the drawing).

[0092] FIG. 8 is a drawing illustrating a dental crown data generated by segmentation processing from scan data according to an embodiment of the present invention.

[0093] Referring to FIGS. 1 and 8, when a tooth number (801) to be extracted is received from the PMS as illustrated in (a), the implant surgery planning device (100) removes the segmented tooth image from the CT data as illustrated in (b). Then, the implant surgery planning device (100) generates segmented crown data from the scan data. This crown data can be applied in the form of a crown in the patient's state, not a library-type crown, during later implant placement, thereby providing information on the tooth before extraction.

[0094] The implant surgery planning device (100) can configure the tooth area before extraction in the form of a bounding box and determine the part passing through the center of the bounding box as the tooth axis. The bounding box may be in the form of a hexahedron. The implant surgery planning device (100) can obtain information about the determined tooth axis and use the tooth axis information to determine the implant placement direction during implant simulation. In addition, the implant surgery planning device (100) can obtain occlusal information and use the same to determine a three-dimensional implant placement direction.

[0095] FIG. 9 is a drawing illustrating a screen for creating an implant placement direction boundary area according to one embodiment of the present invention.

[0096] In Figure 9, BA represents the bucco-lingual axis, MA represents the mesio-distal axis, and AA represents the axial axis.

[0097] Referring to FIGS. 1 and 9, the implant surgery planning device (100) distinguishes whether the tooth to be implanted is an anterior tooth or a posterior tooth.

[0098] At this time, if the tooth to be implanted is an anterior tooth, the implant surgery planning device (100) creates an implant placement direction boundary area (930) that sets the direction of the axis (910) of the adjacent tooth as the implant placement direction. The implant placement direction boundary area (930) may be in the shape of a large hexahedron in a 3D image and in the shape of a large square in a 2D image.

[0099] In contrast, if the tooth to be implanted is a molar, the implant surgery planning device (100) generates an implant placement direction boundary area (930) based on the direction of the axis (910) of the adjacent tooth and the axis (920) of the opposing tooth. For example, the implant surgery planning device (100) can generate an implant placement direction boundary area (930) that uses the direction of the axis (910) of the adjacent tooth and the direction of the axis (920) of the opposing tooth as the implant placement direction.

[0100] Adjacent teeth (901) refer to teeth 17 and 15 when the lost tooth is tooth 16. Opposing teeth (902) refer to teeth corresponding to the upper jaw in the lower jaw when the lost tooth is the upper jaw, and refer to teeth corresponding to the lower jaw in the upper jaw when the lost tooth is the lower jaw.

[0101] The axis (910) of the adjacent tooth may coincide with the average axis of the adjacent teeth on both sides of the tooth on which the implant is to be placed or with the axis of the tooth in front of the tooth on which the implant is to be placed (for example, the axis of the tooth 15 in the case of the tooth 16). The axis (920) of the opposing tooth may coincide with the axis of the jaw tooth (902) opposite the tooth on which the implant is to be placed.

[0102] As described above, the implant surgery planning device (100) can create an implant placement direction boundary area (930) based on the direction of the axis (910) of the adjacent tooth and the axis (920) of the opposing tooth, targeting the tooth on which the implant is to be placed.

[0103] FIG. 10 is a drawing illustrating a screen for creating an implant placement location boundary area according to one embodiment of the present invention.

[0104] Referring to FIGS. 1, 9, and 10, the implant surgery planning device (100) creates an implant placement location boundary area (1030) when an implant placement direction boundary area (930) is created. The implant placement location boundary area (1030) is a reduced-size area from the implant placement direction boundary area (930) of the largest hexahedron.

[0105] The implant surgery planning device (100) creates an implant placement location boundary area (1030) to have an implant diameter within a predetermined distance (e.g., 3 mm) from the adjacent implant when there is an adjacent implant for the tooth to which the implant is to be placed.

[0106] The implant surgery planning device (100) can create an implant placement location boundary area (1030) so that the implant diameter is within a predetermined distance, for example, a distance (1010) of 1.5 mm, from the adjacent teeth (901) when there are adjacent teeth (901) for the tooth on which the implant is to be placed.

[0107] In addition, the implant surgery planning device (100) can give directions to the buccal side, the lingual side, and both adjacent surfaces (mesial surface, distal surface) based on the four surfaces of the implant placement direction boundary area (930) in the shape of the largest hexahedron. The implant surgery planning device (100) can create an implant placement location boundary area (1030) so that the implant diameter is within a predetermined distance, for example, a distance (1020) spaced apart by 2 mm from the contact distance of the buccal bone and the lingual bone of the implant placement direction boundary area (930). The buccal bone and the lingual bone are anatomical structures segmented through CT data.

[0108] The implant surgery planning device (100) can create an implant placement location boundary area (1030) so that the implant diameter is within a distance that does not contact the lingual surface of the implant placement direction boundary area (930) based on the incisive canal when the tooth to be implanted is an upper jaw incisor.

[0109] When the tooth to be implanted is an upper incisor, the implant placement location boundary area (1030) can be created by considering both a predetermined distance, for example, 2 mm, from the contact distance between the upper and lower buccal bones and the lingual bone, and a distance that does not contact the lingual surface of the implant placement direction boundary area (930) based on the incisal canal (And condition).

[0110] As described above, after the largest hexahedral-shaped implant placement direction boundary area (930) is created, the implant surgery planning device (100) can create an implant placement location boundary area (1030) that is reduced in size from the implant placement direction boundary area (930).

[0111] FIG. 11 is a drawing illustrating a screen for creating an implant implantation depth boundary area according to one embodiment of the present invention.

[0112] Referring to FIG. 1, FIG. 9 to FIG. 11, the implant surgery planning device (100) can create an implant placement direction boundary area (930), create an implant placement position boundary area (1030), and then create an implant placement depth boundary area (1140).

[0113] The implant surgery planning device (100) can generate an implant placement depth boundary area (1140) based on the maxillary sinus, inferior alveolar nerve, and opposing teeth. The maxillary sinus and inferior alveolar nerve are anatomical structures segmented from CT data. The opposing teeth are anatomical structures segmented from scan data. The opposing teeth refer to the teeth corresponding to the maxilla in the mandible if the missing teeth are maxillary, and refer to the teeth corresponding to the mandible in the maxilla if the missing teeth are mandibular.

[0114] The implant surgery planning device (100) can generate an implant placement depth boundary area (1140) so as to satisfy two conditions, including a predetermined distance (1110) of 9 mm or more from the opposing tooth (902), for example, a distance of 3 mm or more downward from the gum (1102), for example, a distance (1120) of 3 mm or more downward, in both the upper and lower jaw anterior and posterior teeth. Here, the opposing tooth (902) is an anatomical structure segmented from scan data. The gum (1102) is an anatomical structure segmented from scan data. That is, the implant surgery planning device (100) generates the implant placement depth boundary area (1140) so that the uppermost part of the implant is located at a position that satisfies both of the above-described conditions.

[0115] The implant surgery planning device (100) can generate an implant placement depth boundary area (1140) based on the nasal cavity when the tooth to be implanted is an upper incisor. For example, the implant length is generated so as not to invade the nasal cavity at a predetermined distance, for example, 9 mm or more, from the opposing tooth (902), and the implant length is generated so as not to invade the nasal cavity at a predetermined distance, for example, 3 mm or more, from the gum (1102).

[0116] In the case where the tooth to be implanted is an upper molar, the implant implantation depth boundary area (1140) can be created based on the distance (1130) from the maxillary sinus (1101).

[0117] If the tooth to be implanted is a mandibular molar, the implant implantation depth boundary area (1140) can be created based on the distance from the inferior alveolar nerve.

[0118] If the tooth to be implanted is an upper anterior tooth, the implant length can be automatically changed to meet the two conditions above at a predetermined distance from the opposing tooth (902) and gum (1120) based on the nasal cavity so as not to invade the nasal cavity.

[0119] If the tooth to be implanted is an upper molar, bone grafting through maxillary sinus augmentation is possible even if the maxillary sinus is invaded. Therefore, the implant surgery planning device (100) can automatically change the implant length according to the two conditions mentioned above within the maxillary sinus invasion distance and the distance from the opposing tooth based on user-set values.

[0120] When the tooth to be implanted is a mandibular molar, the implant surgery planning device (100) can automatically change the length of the implant implanted at a predetermined distance upward, for example, 2 mm upward, based on the inferior alveolar nerve, according to the two conditions above.

[0121] FIG. 12 is a drawing illustrating a final implantable implantable area according to one embodiment of the present invention.

[0122] Referring to FIGS. 1, 9 to 12, the implant surgery planning device (100) generates an implant placement direction boundary area (930) in the shape of the largest hexahedron, generates an implant placement location boundary area (1030) whose size is reduced from the implant placement direction boundary area (930), and generates an implant placement depth boundary area (1140) whose size is further reduced than the implant placement location boundary area (1030). The implant placement depth boundary area (1140) corresponds to the final implant placement boundary area (1200).

[0123] FIG. 13 is a drawing showing an enlarged area of ​​interest of FIGS. 9 to 12 according to one embodiment of the present invention.

[0124] In FIG. 13, drawing symbol 1110 denotes a distance from a predetermined boundary area to an opposing tooth (902), drawing symbol 1120 denotes a distance from a gum (1102), drawing symbol 1010 denotes a distance from an adjacent tooth, drawing symbol 1020 denotes a distance from a buccal bone and a lingual bone, and 1130 denotes a distance from a maxillary sinus (1101).

[0125] In this way, the present invention segments anatomical structures such as teeth, jaw bone, maxillary sinus, and inferior alveolar nerve canal from dental image data of a patient obtained using deep learning, which has shown high accuracy in the field of image recognition, and automatically and accurately creates a boundary area where implant placement is possible based on the segmented anatomical structures.

[0126] To summarize with reference to FIGS. 9 to 13, the implant surgery planning device (100) divides the criteria for implant placement into implant placement direction, implant placement location, and implant placement depth.

[0127] The implant surgery planning device (100) creates a large hexahedral implant placement direction boundary area (930) with the axial direction of the adjacent teeth and opposing teeth of the tooth where the implant is to be placed as the placement direction.

[0128] Next, the implant surgery planning device (100) generates a small hexahedral implant placement location boundary area (1030) based on a distance (e.g., 1.5 mm) from an adjacent tooth, a distance (e.g., 3 mm) from an adjacent implant, and a distance (e.g., 2 mm) or more from the buccal bone and the lingual bone, from a large hexahedral implant placement direction boundary area (930). Accordingly, the size of the boundary area is reduced.

[0129] Next, the implant surgery planning device (100) reduces the size of the boundary area based on the maxillary incisors (apart from the incisive canal), maxillary molars (maxillary sinus or a user-defined value that may invade the maxillary sinus), and mandibular molars (apart 2 mm above the inferior alveolar nerve) for the implant placement location boundary area (1030) to generate an implant placement depth boundary area (1140). The generated implant placement depth boundary area (1140) becomes the final implant placement boundary area.

[0130] FIG. 14 is a drawing illustrating a screen for modifying a planted implant according to one embodiment of the present invention.

[0131] Referring to FIGS. 1 and 14, the implant surgery planning device (100) displays the final implant placement boundary area (1400) and implants the implant. At this time, the implant surgery planning device (100) can implant the implant by taking into account the positions of the crowns arranged in the dental image data.

[0132] Next, the implant surgery planning device (100) confirms the location of the implanted implant, and if the implant is implanted within the final implant implantation boundary area (1400), the value preset by the user for each tooth is reflected for the implanted implant.

[0133] In contrast, when the planted implant invades the final implant placement boundary area (1400), the implant surgery planning device (100) provides an implant having implant information of the maximum value close to the value set by the user within the final implant placement boundary area. For example, when the final implant placement boundary area has a width of 4.2 mm and a length of 8.3 mm, it is assumed that the implants that can actually be applied in the implant system have a diameter of 4.5, a diameter of 4.0, a diameter of 3.5, a length of 6.0, a length of 7.0, and a length of 8.5. At this time, when the default values ​​of 4.5 diameter and 8.5 length are set for each tooth type by a user operation signal, it is automatically changed to an implant of 4.0 diameter and 7.0 length.

[0134] The implant surgery planning device (100) can modify an implant (1420) using a manipulator (1410) within the final implant placement boundary area (1400). At this time, the implant (1420) may be an implant that has been placed or an implant that has been changed within the final implant placement boundary area (1400) after placement.

[0135] The manipulator (1410) may include a circular guide interface (1411) and an implant modification interface disposed on the guide interface (1411). The implant modification interface may be, for example, at least one of a length modification interface (1412), a diameter modification interface (1413), a depth modification interface (1414), a position modification interface (1415), and a direction modification interface (1416). The position modification interface (1415) may include an up, down, left, and right movement interface, and the direction modification interface (1416) may include a rotation interface. The corresponding modification interface is a description for the internal submerged type corresponding to KS and TS, and may additionally include a G / H modification interface in the case of the internal non-submerged type corresponding to SS.

[0136] The step of modifying an implant may include a step of displaying a manipulator (1410) based on the implanted implant, a step of receiving a user manipulation signal for selecting a predetermined adjustment interface (1412, 1413, 1414, 1415, 1416) within the manipulator (1410), and a step of modifying the implant (1410) according to a predetermined unit set upon receiving the user manipulation signal.

[0137] At this time, when modifying an implant (1420) through a manipulator (1410), if the modified implant (1420) invades the final implant placement boundary area (1400), the modification interface can be deactivated to prevent the implant from invading the final implant placement boundary area (1400).

[0138] In summary, the implant surgery planning device (100) provides a final implant placement boundary area (1400), and when a user wishes to modify a placed implant using a manipulator (1410), the manipulator (1410) can be controlled to enable modification within the final implant placement boundary area (1400).

[0139] FIG. 15 is a drawing illustrating an abutment condition formula according to one embodiment of the present invention.

[0140] The implant surgery planning device (100) creates an abutment placement boundary area according to the system of the implanted implant after crown arrangement and implant placement, and then places the abutment.

[0141] When implant placement is completed, the implant surgery planning device (100) can create an abutment placement boundary area only for the internal submerged type (TS, KS) by the manufacturer of the implanted implant and the manufacturer's system.

[0142] Below, the abutment implantation method is described.

[0143] The implant surgery planning device (100) determines the internal diameter value at which the implant and the abutment contact each other from a completed implant. Since the implant was placed using the implant manufacturer and its in-house system, the internal diameter value at which the implant and the abutment contact each other can be determined.

[0144] Next, the implant surgery planning device (100) calculates the alpha value (α) of tangent alpha (Tan α) using the abutment conditional formula of Fig. 15. For example, when implanting an implant with a diameter of 4 mm, tangent alpha (Tan α) is calculated by dividing the value obtained by subtracting the inner diameter of the 4 mm implant from the diameter value (D) of the abutment by half, and then calculating this value (K TSr ) is the value obtained by dividing the G / H of the abutment.

[0145] Next, the implant surgery planning device (100) can provide a number of cases for abutment information including diameter and G / H for an abutment in which the alpha value (α) of the tangent alpha (Tan α) is within a predetermined value, for example, 30 degrees. At this time, as with the implant, the abutment that most closely matches the user-set value can be determined.

[0146] Next, the implant surgery planning device (100) can provide a manipulator that can modify an abutment only for an abutment in which the alpha value (α) of the tangent alpha (Tan α) is within a predetermined value, for example, 30 degrees, when the user wants to modify abutment information such as the diameter or G / H of the abutment.

[0147] FIG. 16 is a drawing illustrating an example of activating an abutment manipulator according to an alpha value of tangent alpha according to one embodiment of the present invention.

[0148] Referring to FIGS. 1 and 16, when a user wishes to modify the diameter value of an abutment and the G / H value, if the alpha value is a predetermined value, for example, 30 degrees or more (1600), due to the abutment conditional expression, application of the diameter and G / H value of the abutment is not possible. If the alpha value is a predetermined value, for example, 30 degrees or less, when the corresponding diameter value is selected, the G / H value whose alpha value is within 30 degrees is activated. However, for G / H values ​​greater than that, the abutment manipulator is deactivated and provided because the alpha value exceeds 30 degrees.

[0149] Also, conversely, if the user wishes to modify the G / H value of the abutment and the diameter value, the abutment manipulator is activated to allow changes for diameters within 30 degrees of the alpha value. For diameter values ​​exceeding 30 degrees, the abutment manipulator is deactivated and provided.

[0150] If the alpha value exceeds 30 degrees, the abutment may apply excessive pressure to the gums, which may cause the bone beneath the gums to melt later. Accordingly, the implant surgery planning device (100) may recommend an abutment by activating the abutment manipulator so that the alpha value remains within 30 degrees.

[0151] FIG. 17 is a drawing showing an abutment implantation boundary area determined according to a system of an implanted implant according to one embodiment of the present invention.

[0152] Referring to FIG. 1 and FIG. 17, the implant surgery planning device (100) creates a numbering area (1700) that numbers the teeth on which the implant is to be implanted.

[0153] Next, the implant surgery planning device (100) creates a crown (1740) within the numbering area (1700).

[0154] Next, the implant surgery planning device (100) creates an implant placement boundary area (1200) where implant placement is possible, narrows the boundary area, and implants an implant (1720) within the implant placement boundary area (1200).

[0155] Next, when implant placement is completed, the implant surgery planning device (100) creates an abutment placement boundary area (1710) and places an abutment (1730) within the abutment placement boundary area (1710).

[0156] Next, when the implant surgery planning device (100) receives a user operation signal for modifying the abutment, it selectively activates or deactivates the abutment manipulator according to the alpha value.

[0157] If the user wants to modify the diameter value of the abutment, for example, if the implanted implant is TSIII Regular 4.0, the abutment diameter is 6.0, and G / H is 3, and the abutment diameter is changed to 7.0, the implant surgery planning device (100) deactivates the abutment diameter 7.0 in the abutment manipulator because the alpha value exceeds 30 degrees. Accordingly, since the abutment diameter 6.0 is the maximum value, the + button for modifying the abutment diameter to 7.0 is provided to the user in a deactivated state.

[0158] The implant surgery planning device (100) can provide an abutment having a maximum abutment information close to a value set by the user within the abutment implantation boundary area when the implanted abutment invades the abutment implantation boundary area.

[0159] Reference numeral 1750 of FIG. 17 indicates a case where the alpha value is equal to a predetermined value, for example, 30 degrees or less, when the abutment is changed, and reference numeral 1760 indicates a case where the alpha value deviates from a predetermined value, for example, 30 degrees.

[0160] FIG. 18 is a drawing illustrating an abutment manipulator according to one embodiment of the present invention.

[0161] Referring to FIGS. 1 and 18, the abutment is dependent on the implant, and when the position of the implant is modified, the position of the abutment is also modified. Accordingly, the abutment manipulator (1800) includes a G / H modification interface (1810), a diameter modification interface (1820), a height modification interface (1830), and a type modification interface (1840).

[0162] The abutment manipulator (1800) may include an upper abutment manipulator (1850) and a lower abutment manipulator (1860). The positions of the G / H modification interface (1810) and the height modification interface (1830) may be changed depending on the upper abutment manipulator (1850) and the lower abutment manipulator (1860).

[0163] FIG. 19 is a diagram illustrating a flow chart of a method for establishing an implant surgery plan according to one embodiment of the present invention.

[0164] Referring to FIG. 1 and FIG. 19, the implant surgery planning device (100) acquires dental image data of a patient for implant placement (S1910).

[0165] Next, the implant surgery planning device (100) segments anatomical structures from the acquired dental image data (S1920).

[0166] Next, the implant surgery planning device (100) generates an implant placement boundary area according to implant placement criteria based on the segmented anatomical structure information (S1930). The implant placement criteria include at least one of the implant placement direction, placement location, and placement depth.

[0167] In step S1930, the implant surgery planning device (100) can generate an implant placement direction boundary area that indicates an implant placement direction. Subsequently, the implant surgery planning device (100) can generate an implant placement location boundary area that indicates an implant placement location within the determined implant placement direction boundary area. Subsequently, the implant surgery planning device (100) can generate an implant placement depth boundary area that indicates an implant placement depth within the determined implant placement location boundary area.

[0168] In the step of creating an implant placement direction boundary area, the implant surgery planning device (100) can create an implant placement direction boundary area with at least one of the axial directions of the adjacent teeth and opposing teeth of the tooth on which the implant is to be placed as the placement direction.

[0169] In the step of creating an implant placement direction boundary area, the implant surgery planning device (100) can create an implant placement location boundary area by reducing the size of the implant placement direction boundary area so that the implant diameter is formed within a predetermined distance from the adjacent teeth.

[0170] In the step of creating an implant placement location boundary area, the implant surgery planning device (100) can create an implant placement location boundary area by reducing the size of the implant placement direction boundary area so that the implant diameter is formed within a predetermined distance from the adjacent implant.

[0171] In the step of creating an implant placement location boundary area, the implant surgery planning device (100) can create an implant placement location boundary area by reducing the size of the implant placement direction boundary area so that the implant diameter is formed at a predetermined distance from the contact distance of the buccal and lingual bones of the implant placement direction boundary area.

[0172] In the step of creating an implant placement location boundary area, if the tooth to be implanted is an upper jaw incisor, the implant surgery planning device (100) can create an implant placement location boundary area by reducing the size of the implant placement direction boundary area so that the implant diameter is within a distance that is a predetermined distance from the contact distance of the buccal and lingual bones of the implant placement direction boundary area and a distance that does not contact the lingual surface of the implant placement direction boundary area based on the incisive canal.

[0173] In the step of creating an implant placement depth boundary area, the implant surgery planning device (100) can create an implant placement depth boundary area based on the maxillary sinus, inferior alveolar nerve, and opposing teeth.

[0174] Next, the implant surgery planning device (100) displays the created implant placement boundary area (S1940).

[0175] Next, the implant surgery planning device (100) implants the implant (S1950).

[0176] Next, the implant surgery planning device (100) can provide an implant having implant information with a maximum value close to a value set by the user within the implant placement boundary area when the implanted implant invades the implant placement boundary area.

[0177] After step S1950, the implant surgery planning device (100) can display a manipulator for modifying the implanted implant within the implant placement boundary area. Subsequently, the implant surgery planning device (100) can modify the implant according to a predetermined unit set when receiving a user operation signal for selecting a predetermined implant modification interface within the manipulator.

[0178] The implant modification interface may include at least one of a diameter modification interface, a depth modification interface, a position modification interface, and an orientation modification interface. The position modification interface may include an up, down, left, and right movement interface, and the orientation modification interface may include a rotation interface.

[0179] In the step of modifying the implant, the implant surgery planning device (100) can deactivate the implant modification interface if the modified implant invades the final implant placement boundary area, thereby preventing the implant from invading the final implant placement boundary area.

[0180] After the implant placement step, the implant surgery planning device (100) can create an abutment placement boundary area according to the system of the implant placed after the implant placement.

[0181] Next, the implant surgery planning device (100) can implant an abutment within the created abutment implantation boundary area.

[0182] In the step of generating an abutment implantation boundary area, the implant surgery planning device (100) can generate an abutment implantation boundary area using an abutment conditional formula. The abutment conditional formula tangent alpha (Tan α) may be a value obtained by dividing the value obtained by subtracting the inner diameter of the implant from the diameter value (D) of the abutment by half, and then dividing this value by the G / H of the abutment.

[0183] Furthermore, the implant surgery planning device (100) displays an abutment manipulator for modification within the abutment implantation boundary area, and can modify the abutment within the set specifications according to a user operation signal for selecting a predetermined modification interface within the abutment manipulator.

[0184] The abutment modification interface may include at least one of a diameter modification interface, a G / H modification interface, a height modification interface, and a type modification interface.

[0185] In the step of modifying the abutment, the implant surgery planning device (100) can disable the modification interface if the modified abutment invades the final abutment implantation boundary area, thereby preventing the abutment from invading the final abutment implantation boundary area.

[0186] The implant surgery planning device (100) can provide an abutment having a maximum abutment information close to a value set by a user within the abutment implantation boundary area when the implanted abutment invades the abutment implantation boundary area after implanting the abutment.

[0187] The present invention has been described above, focusing on specific embodiments thereof. Those skilled in the art will appreciate that the present invention can be implemented in modified forms without departing from its essential characteristics. Therefore, the disclosed embodiments should be considered illustrative rather than limiting. The scope of the present invention is set forth in the claims, not the foregoing description, and all differences within the scope equivalent thereto should be construed as being encompassed by the present invention.

Claims

1. In the method of establishing an implant surgery plan, A step of acquiring dental image data of a patient for implant placement; A step of segmenting anatomical structures from the acquired dental image data; and A step of generating an implant placement boundary area that presents a boundary for implant placement based on information on segmented anatomical structures, wherein the boundary includes at least one of an implant placement direction, an implant placement location, and an implant placement depth; A method for establishing an implant surgery plan, characterized by including a.

2. In paragraph 1, the step of creating an implant placement boundary area is A step of creating an implant placement direction boundary area that indicates the implant placement direction; A step of creating an implant placement location boundary area that suggests an implant placement location within a determined implant placement direction boundary area; and A step of creating an implant placement depth boundary area that indicates the implant placement depth within the determined implant placement position boundary area; A method for establishing an implant surgery plan, characterized by including a.

3. In the second paragraph, the step of creating a boundary area in the implant placement direction is A method for establishing an implant surgery plan, characterized by creating an implant placement direction boundary area in which at least one of the axial directions of the adjacent teeth and opposing teeth of the tooth on which the implant is to be placed is the placement direction.

4. In the second paragraph, the step of creating an implant placement location boundary area is A method for establishing an implant surgery plan, characterized in that the size of the implant placement direction boundary area is reduced so that the implant diameter is formed within a predetermined distance from the adjacent teeth, thereby creating an implant placement location boundary area.

5. In the second paragraph, the step of creating an implant placement location boundary area is A method for establishing an implant surgery plan, characterized in that the size of the implant placement direction boundary area is reduced so that the implant diameter is formed within a predetermined distance from the adjacent implant, thereby creating an implant placement location boundary area.

6. In the second paragraph, the step of creating an implant placement location boundary area is A method for establishing an implant surgery plan, characterized in that the size of the implant placement direction boundary area is reduced so that the implant diameter is formed at a predetermined distance from the contact distance of the buccal and lingual bones of the implant placement direction boundary area, thereby creating an implant placement location boundary area.

7. In the second paragraph, the step of creating an implant placement location boundary area is A method for establishing an implant surgery plan, characterized in that the implant placement location boundary area is created by reducing the size of the implant placement direction boundary area so that the implant diameter is within a distance that is a predetermined distance from the contact distance of the buccal and lingual bones of the implant placement direction boundary area and a distance that does not contact the lingual surface of the implant placement direction boundary area based on the incisive canal.

8. In the second paragraph, the step of creating an implant placement depth boundary area is A method for establishing an implant surgery plan characterized by creating an implant placement depth boundary area based on the maxillary sinus, inferior alveolar nerve, and opposing teeth.

9. In paragraph 1, the method for establishing an implant surgery plan is A step of displaying the implant placement boundary area generated above; A method for establishing an implant surgery plan, characterized by further including:

10. In paragraph 1, the method for establishing an implant surgery plan is Steps for implant placement; and A step of providing an implant having implant information having a maximum value close to a value set by a user within the implant placement boundary area when the implanted implant invades the implant placement boundary area; A method for establishing an implant surgery plan, characterized by further including:

11. In paragraph 1, the method for establishing an implant surgery plan is Steps for implant placement; A step of displaying a manipulator for modifying a planted implant within the implant planting boundary area; A step of receiving a user operation signal for selecting a predetermined implant modification interface within the manipulator; and A step of modifying an implant according to a set unit when a user operation signal is received; A method for establishing an implant surgery plan, characterized by further including:

12. In clause 11, the implant modification interface A method for establishing an implant surgery plan, comprising: at least one of a diameter correction interface, a depth correction interface, a position correction interface, and a direction correction interface, wherein the position correction interface includes an up, down, left, and right movement interface, and the direction correction interface includes a rotation interface.

13. In paragraph 11, the step of modifying the implant is A method for establishing an implant surgery plan, characterized in that when a modified implant invades the final implant placement boundary area, an implant modification interface is deactivated to prevent the implant from invading the final implant placement boundary area.

14. In paragraph 1, the method for establishing an implant surgery plan is A step for creating an abutment implantation boundary area according to the system of the implanted implant after implantation; and A step of displaying the generated abutment implantation boundary area; A method for establishing an implant surgery plan, characterized by further including:

15. In paragraph 14, the step of creating an abutment implantation boundary area is Create an abutment placement boundary area using the abutment conditional expression, A method for establishing an implant surgery plan, characterized in that the abutment conditional tangent alpha (Tan α) is a value obtained by dividing the value obtained by subtracting the inner diameter of the implant from the diameter value (D) of the abutment by half, and then dividing this value by the G / H of the abutment.

16. In Article 14, the method for establishing an implant surgery plan is Step of implanting the abutment; A step of displaying an abutment manipulator for modifying the implanted abutment within the abutment implantation boundary area; A step of receiving a user manipulation signal for selecting a predetermined abutment modification interface within an abutment manipulator; and A step of modifying the abutment within the set specifications upon receiving a user operation signal; A method for establishing an implant surgery plan, characterized by further including:

17. In clause 16, the abutment modification interface is: A method for establishing an implant surgery plan, characterized in that it includes at least one of a diameter modification interface, a G / H modification interface, a height modification interface, and a type modification interface.

18. In paragraph 16, the step of modifying the abutment is A method for establishing an implant surgery plan, characterized in that the abutment modification interface is deactivated when the modified abutment invades the final abutment placement boundary area, thereby preventing the abutment from invading the final abutment placement boundary area.

19. In Article 14, the method for establishing an implant surgery plan is Step of implanting an abutment; and A step of providing an abutment having a maximum abutment information close to a user-set value within the abutment implantation boundary area when the implanted abutment invades the abutment implantation boundary area; A method for establishing an implant surgery plan, characterized by further including:

20. Input unit for receiving a tooth to be implanted; A data acquisition unit for acquiring dental image data of a patient for implant placement of a received tooth; A display section for displaying a screen; and A control unit for generating an implant placement boundary area that presents a boundary where an implant can be placed based on an implantation criterion including at least one of an implantation direction, an implantation location, and an implantation depth, after segmenting an anatomical structure from the acquired dental image data; An implant surgery planning device comprising:

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