KR20210120341A - surgical guide for combined use of bone reduction guide and manufacturing method thereof - Google Patents

Abstract

In order to shorten manufacturing time and improve economic feasibility, the present invention provides a surgical guide for combined use of cutting guide, which includes: a first body portion having an inner side formed as a fixed surface for wrapping and fitting around inner and outer surfaces of periodontal tissue to which a dental implant object for recovering a tooth is to be implanted, so as to be formed to have an upper edge selectively opened and exposed to correspond to an outer boundary of a virtual alignment surface; and a second body portion having an inner surface facing a cutting surface formed in the periodontal tissue in correspondence with the virtual alignment surface, and having a sleeve having a guide hole for supporting a rotation mechanism is coupled to a coupling hole formed corresponding to a preset implanting position for guiding the implant of the dental implant object for recovering the tooth, so as to be selectively divided from the first body portion.

Description

A surgical guide for combined use of a cutting guide and a manufacturing method thereof

The present invention relates to a surgical guide combined with a cutting guide and a method for manufacturing the same, and more particularly, to a surgical guide combined with a cutting guide and a method for manufacturing the same with reduced manufacturing time and improved economic feasibility.

In general, a denture or a prosthesis is an artificial periodontal tissue in the oral cavity that replaces a missing natural tooth and artificially restores the appearance and function. At this time, the dentures or prostheses can be installed inside the oral cavity to restore the masticatory function and prevent periodontal tissue deformation, and can be divided into partial/complete dentures and partial/complete prostheses according to the number of missing teeth.

On the other hand, for edentulous patients, patients with few remaining teeth or with poor placement of remaining teeth, dental restoration using dental restorations such as complete dentures or complete prostheses is performed. bone preparation is required. That is, as the alveolar bone collapses or the curve formed after extraction of the remaining teeth is flattened, the design difficulty of the dental restoration may be lowered, and the degree of matching with the oral cavity may be improved when the dental restoration is installed.

In this case, in the removal of the alveolar bone, it is necessary to consider a part that causes a risk in case of damage to an anatomical structure, for example, the inferior alveolar nerve, the maxillary sinus membrane, and the like. That is, when the removal of the alveolar bone proceeds to an excessive depth, it is difficult to secure a bone thickness or height at which the dental restoration can be placed, and there is a problem in that the thickness of the dental restoration is increased. On the other hand, when the preparation height of the alveolar bone is shallow, the thickness of the dental restoration is relatively thin, and there is a problem in that durability is reduced.

In particular, in the case of the overdenture disclosed as an alternative to the denture or prosthesis, a structure in which a plurality of holder abutments are installed in the alveolar bone and mounted in the oral cavity through a fixing bar passing through the holder abutment has recently been partially developed. . At this time, since the fixing bar is provided with a rigid metal material with a small deformation rate even with masticatory pressure or movement of the oral cavity, the implantation height in the alveolar bone of the plurality of fixtures/abutments through which the fixing bar passes must be constant. However, in the case of a state in which the natural teeth have already been lost or the extracted alveolar bone has a problem in that it is difficult to accurately fix the fixing bar horizontally due to the bending of its outer surface.

However, in the prior art, as the operator simply flattened the alveolar bone with experience values after incising the gums, it was difficult for the bone preparation to proceed to an accurate height, and thus there was a problem in that the positional accuracy with the manufactured dental restoration was deteriorated.

Accordingly, in some cases, a cutting guide for guiding a bone preparation has been disclosed. However, since the cutting guide and the surgical guide for guiding the implantation are separately designed and manufactured, it takes a lot of time to manufacture the dental restoration-related components, which increases the overall period of dental restoration.

Moreover, in designing the cutting guide and the surgical guide, respectively, as the cutting guide surface corresponding to the cutting surface or the inner surface of the surgical guide is manually set, the mutual molding precision is lowered. For this reason, there was a problem in that precision was lowered because the results of fracture cutting and implant placement using individually manufactured cutting guides and surgical guides were different from the established dental restoration plans.

Korean Patent Registration No. 10-1694475

In order to solve the above problems, an object of the present invention is to provide a surgical guide combined with a cutting guide and a method for manufacturing the same, in which the manufacturing time is shortened and the economical efficiency is improved.

In order to solve the above problems, the present invention is formed as a fixed surface that surrounds the inner and outer surfaces of the periodontal tissue in which the implants for the upper teeth are placed, and is formed as a fixed surface, the upper edge selectively opened and exposed is the virtual alignment A first body portion formed to correspond to the outer boundary of the surface; and a guide hole in which an inner surface is disposed to face the cutting surface formed in the periodontal tissue in correspondence with the virtual alignment surface, and a rotating mechanism is rotatably supported in a coupling hole formed corresponding to a preset placement position to guide the implantation of the dental restoration implant. The formed sleeve is coupled to provide a surgical guide combined with a cutting guide including a second body part selectively divided from the first body part.

On the other hand, in the present invention, the occlusal plane preset in the planning image in which periodontal tissue information of the occlusal state including the oral surface information and the alveolar bone information is displayed as three-dimensional data is a virtual alignment plane in which the implantation position of the dental restoration is considered. a first step of setting a cutting surface profile by replacing the three-dimensional data on the target arch side based on the three-dimensional data of an erase model that is virtually overlapped between the occlusal plane and the virtual alignment plane; The inner and outer three-dimensional data of the cutting surface profile and the periodontal tissue information are set as inner surface information of the virtual guide base, and the outer surface information of the virtual guide base is set by extending and protruding outward from the inner surface information of the virtual guide base, a second step in which a dividing line is set to correspond to the virtual alignment plane; and a plurality of virtual cut-out blocks having a flat lower surface and protruding to a predetermined thickness are arranged along the dividing line and virtually arranged, the overlapping area of the virtual cut-out block and the virtual guide base is erased to remove the first body It provides a method of manufacturing a combined cutting guide surgical guide comprising a third step of designing and three-dimensionally printing a surgical guide combined with a cutting guide in which an incision slot hole is formed along the boundary between the portion and the second body portion.

Through the above solution means, the present invention provides the following effects.

First, unlike the prior art where a cutting guide for fracture cutting and a surgical guide for implant placement were individually designed and manufactured, two products were manufactured with one design information and then used as a surgical guide in its original shape or the upper surface was divided and removed. As a result, it is possible to use deformation as a cutting guide, so economic efficiency can be significantly improved through reduction of design and manufacturing man-hours.

Second, since the inner surface of the upper surface where the guide hole is formed and the inner peripheral lower surface of the incision slot hole are formed based on the same virtual alignment surface data, the upper surface of the alveolar bone flattened through the product transformed into a cutting guide by removing the upper surface and used as a surgical guide As the inner surfaces of the original products are molded together, the implantation precision can be remarkably improved.

Third, standardized design data such as an erasing model and virtual incision block are extracted and virtually placed in the 3D data obtained through the oral cavity and the schematic virtual design information of the surgical guide in a simple method in which the overlapping parts are erased. The design information of the surgical guide combined with the cutting guide can be acquired quickly, and the design difficulty can be lowered.

1 is a perspective view of a surgical guide combined with a cutting guide according to an embodiment of the present invention.
Figure 2 is a cross-sectional view in the AB direction of Figure 1;
Figure 3 is a perspective view showing a state in which the surgical guide according to an embodiment of the present invention is used as a cutting guide.
Figure 4 is a cross-sectional view in the CD direction of Figure 3;
5 is a flowchart illustrating a method of manufacturing a surgical guide combined with a cutting guide according to an embodiment of the present invention.
6 is an exemplary view showing the alignment process of the erase model in the manufacturing method of the surgical guide combined with a cutting guide according to an embodiment of the present invention.
7 is an exemplary view showing an erasing model applied to a manufacturing method of a surgical guide combined with a cutting guide according to an embodiment of the present invention.
8 is a cross-sectional view showing the design information setting process of the cutting slot hole in the manufacturing method of the surgical guide combined with a cutting guide according to an embodiment of the present invention.
9 is an exemplary view showing the design information setting process of the cutting slot hole in the manufacturing method of the surgical guide combined with a cutting guide according to an embodiment of the present invention.
10 is an exemplary view showing a state in which the holder device is implanted in the cut alveolar bone to which the present invention is applied.
11 is a cross-sectional view showing a process in which the present invention is applied and the overdenture is mounted through the holder device implanted in the oral cavity.

Hereinafter, a surgical guide combined with a cutting guide and a manufacturing method thereof according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, the surgical guide combined with the cutting guide is preferably understood as a means for guiding the implantation position of the dental restoration implant (hereinafter, the implant) to be described later. At this time, it is preferable to understand that the implant is an implant placed on the inside of the flattened alveolar bone, and moreover, it can be understood as a meaning encompassing an abutment or an overdenture holder abutment that is fastened to the upper side of the implant. have. In addition, the dental restoration is preferably understood as an artificial periodontal tissue such as a prosthesis or overdenture mounted in the oral cavity through the implant. At this time, the following has been described and illustrated as an example that the dental restoration is an overdenture, but the present invention can be generally utilized in the process of placing the implant in order to mount the dental restoration in the oral cavity.

1 is a perspective view of a surgical guide combined with a cutting guide according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view in the A-B direction of FIG. 1 . And, FIG. 3 is a perspective view showing a state in which the surgical guide is used as a cutting guide according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view in the C-D direction of FIG. 3 . At this time, it is preferable to understand that the periodontal tissue below includes the alveolar bone and the gums. That is, the inner contour of the surgical guide may be formed to conform to the surface of the alveolar bone or the surface of the gum.

1 to 4, the surgical guide combined with the cutting guide 50 includes a first body portion (50a) and a second body portion (50b).

In detail, the first body portion (50a) is formed with a fixed surface 53, the inner surface of which is wrapped around the inner and outer surfaces of the periodontal tissue (P), and the upper edge 54 is a virtual alignment surface to be described later ( It is preferable to be formed at a position corresponding to the outer boundary of m5). Here, the inner and outer surfaces of the periodontal tissue (P) are preferably understood to encompass the outer surface corresponding to the labial and the inner surface corresponding to the lingual.

In addition, the second body portion 50b is integrally connected with the outer edge 54 of the first body portion 50a. At this time, the inner surface of the second body portion (50b) is formed to face the cutting surface (3a) formed in the periodontal tissue (P) in response to the virtual alignment surface (m5) through the bone preparation process (55) It is preferably formed by

Here, in the state in which the first body part 50a and the second body part 50b are integrally connected, the surgical guide combined with the cutting guide 50 is mounted on the periodontal tissue P with the upper end of the alveolar bone flattened. and is used as a means for guiding the placement of the implant (2 in FIG. 10).

In addition, the second body portion 50b may be divided and removed and the remaining first body portion 50a may be used to guide the bone preparation of the alveolar bone. That is, in a state in which the first body part 50a and the second body part 50b are connected, the upper edge 54 of the first body part 50a has the first body part 50a and the second body part 50b. It is preferable to understand the boundary between the two body parts (50b). Therefore, the upper edge 54 of the first body portion 50a is substantially exposed to the outside when the second body portion 50b is divided and removed from the first body portion 50a. can

As such, the second body portion 50b is divided and removed so that the upper edge 54 is exposed, and the first body portion 50a is mounted on the periodontal tissue P prior to bone preparation. In detail, the fixing surface 53 of the first body portion 50a wraps around the inner and outer surfaces of the periodontal tissue P, and the fixing piece penetrates the first body portion 50a and then the periodontal tissue ( P) to provide fixing force. At this time, the first body part 50a from which the second body part 50b is divided and removed has the upper edge 54 inside the opening 54a, so the labial and lingual sides of the periodontal tissue P and connecting them It is formed in a hollow shape penetrating vertically through both ends.

Accordingly, the labial and lingual inner surfaces of the first body portion 50a are fitted to the inner and outer surfaces of the periodontal tissue (P) through the both ends, respectively. Through this, the periodontal tissue (P) exposed by protruding upwards of the upper edge 54 of the first body part 50a is cut through a cutting mechanism, and the upper edge 54 of the first body part 50a is cut. ), the movement of the cutting mechanism may be guided.

Here, the position of the upper edge 54 of the first body portion 50a is formed to correspond to the virtual alignment surface m5, and the virtual alignment surface m5 is to actually cut the periodontal tissue P It is established based on the dental restoration plan. Accordingly, in a state in which the first body part 50a is mounted on the periodontal tissue P, the planarization process through the bone preparation of the alveolar bone can be precisely guided in response to the tooth restoration plan.

On the other hand, a coupling hole 56 is formed in the second body portion 50b corresponding to a preset placement position of the implant (2 in FIG. 10), and a sleeve 52 having a guide hole 51 formed in the center thereof is provided. It is coupled to the coupling hole 56 . At this time, the sleeve 52 is preferably made of a metal material having a low coefficient of friction and high wear resistance so that a rotating mechanism such as a drill is supported in rotation, and may be formed of a brass material. In addition, the guide protrusion 52a protrudes outside the radius of the sleeve 52 to prevent the sleeve 52 from being interlocked or separated from the coupling hole 56 while it is coupled to the coupling hole 56 . do.

As such, the present invention is used as a surgical guide for guiding the placement of the implant (2 in FIG. 10) in which the first body part 50a and the second body part 50b are integrally formed. 2 As long as the body portion (50b) is divided and removed, it can be used as a cutting guide to guide the bone preparation. In other words, the simple way of removing a part of one product is that it can be used for two very different purposes. Through this, the problem of an increase in manufacturing man-hours due to the separate design and manufacture of the cutting guide and the surgical guide in the prior art is fundamentally eliminated, and thus productivity can be significantly improved. In addition, the time required for separately manufacturing the conventional cutting guide and the surgical guide can be reduced by more than half, and the number of patient visits and waiting time can be shortened to minimize discomfort.

On the other hand, a cut-out slot hole along the boundary between the first body part 50a and the second body part 50b so that the second body part 50b can be easily divided and removed from the first body part 50a. (57) is preferably formed through.

In detail, the incision slot hole 57 is preferably formed as a long hole extending in the horizontal direction. And, the spacing between each of the incision slot holes 57 is formed at a minimum interval that can have the strength to prevent the second body portion 50b from being unintentionally divided from the first body portion 50a. This is preferable. At this time, it is preferable to understand that the second body portion 50b is unintentionally divided as the connection portion 58 between the cut-out slot holes 57 is twisted and damaged due to the rotational force of the rotating mechanism. That is, the thickness of the connection portion 58 corresponding to the spacing between the cut-out slot holes 57 can support the connection state between the first body portion 50a and the second body portion 50b. It is preferably formed with

The incision slot hole 57 is preferably formed based on the outline of a plurality of virtual incision blocks (m41 in FIG. 9) that are virtually aligned along the dividing line m7 set to correspond to the virtual alignment surface m5. . Here, since the virtual alignment surface m5 and the virtual cutting block (m41 in FIG. 9 ) are related to the manufacturing method of the surgical guide 50 combined with the cutting guide, this will be described later.

That is, the cut-through part along the boundary between the first body part 50a and the second body part 50b is the cut-out slot hole 57, and the second cut-out slot hole 57 is located between the cut-out slot holes 57. It is preferable to understand that the part connecting the first body part 50a and the second body part 50b is the connecting part 58 . Accordingly, the first body portion 50a and the second body portion 50b are integrally connected through the connecting portion 58 formed between the plurality of cut-out slot holes 57 . Then, when each of the connecting parts 58 is cut using a dental grinder or the like, the second body part 50b is divided and removed from the first body part 50a. Through this, the inner peripheral lower surface 57c of each incision slot hole 57 is exposed to the outside, and at this time, the surface to which each inner peripheral lower surface 57c of the incision slot hole 57 is connected is the first body portion 50a. It is preferable to understand that it is the upper edge 54 of the.

In detail, each inner peripheral lower surface 57c of the incision slot hole 57 is aligned to correspond to the virtual alignment surface m5, and the cutting surface 3a formed in the periodontal tissue P is also the virtual alignment surface. It is formed corresponding to (m5). Accordingly, in a state in which the second body portion 50b is divided and removed, the upper edge 54 of the first body portion 50a functions as a cutting guide surface 54 for guiding the movement of the cutting mechanism. At this time, it is preferable to understand that the part described as the cutting guide surface 54 below is the upper edge 54 of the first body part 50a.

Here, each inner circumferential lower surface 57c of the cut-out slot hole 57 and the inner surface of the second body 50b are formed at horizontal positions corresponding to the virtual alignment surface m5. Therefore, when the first body part 50a from which the second body part 50b is divided and removed is fixed to the oral cavity, the periodontal tissue P before fracture is convex to the upper side of the cutting guide surface 54 . exposed to And, the periodontal tissue (P) is guided by a fracture cut along the cutting guide surface (54), and the periodontal tissue (P) is precisely cut with a cutting surface (3a) corresponding to the virtual alignment surface (m5). can be

In addition, the cutting guide combined surgical guide 50 in a state in which the second body part 50b is not divided and removed and is integrally connected with the first body part 50a is the periodontal in which the cutting surface 3a is formed. It is mounted so as to wrap around the tissue (P). At this time, since the mating surface 55, which is the inner surface of the second body portion 50b, is formed to correspond to the virtual alignment surface m5, the mating surface 55 and the cutting surface 3a are precisely arranged to face each other. can

On the other hand, it is preferable that the inner peripheral lower surface 57c of the incision slot hole 57 and the outer surface of the first body portion 50a are formed at an angle. In addition, the thickness w1 of the first body portion 50a exceeds the thickness w2 of the second body portion 50b, and the interval between the upper and lower inner periphery of the cut-out slot hole 57 is the second body portion It is preferably formed to be less than the thickness (w2) of (50b). In addition, it is preferable that the horizontal depression interval of the incision slot hole 57 exceeds the thickness w1 of the first body portion 50a.

In detail, the shape-matching surface 55 of the second body portion 50b and the cutting surface 3a formed in the periodontal tissue P are formed to correspond to the virtual alignment surface m5, which is the same information. Therefore, since the mating surface 55 is substantially fitted to the cutting surface 3a, the external force applied in the orthogonal direction to the second body portion 50b is supported through the alveolar bone on which the cutting surface 3a is formed. . Accordingly, the second body portion 50b may be formed to have a minimum thickness sufficient to support the rotation of the rotating mechanism.

In addition, the first body portion (50a) is the cutting tool is guided to the cutting guide surface (54) formed as a surface connected to each inner peripheral lower surface (57c) of the incision slot hole (57). In this case, it is preferable that the cutting guide surface 54 has a contact area capable of supporting the cutting tool substantially in parallel to the virtual alignment surface m5 and horizontally. To this end, the first body portion 50a is preferably formed to have a predetermined thickness, and preferably formed to have a thickness w1 exceeding the thickness w2 of the second body portion 50b.

In addition, the horizontal depression interval of the incision slot hole 57, that is, the horizontal depression interval from the outer surface to the inner surface of the first body portion 50a, is the thickness w1 of the first body portion 50a. ) is preferably formed to exceed. Through this, even if each inner circumferential lower surface 57c of the incision slot hole 57 and the mating surface 55 are formed in the same horizontal position, the incision slot hole 57 is positioned inside the first body portion 50a and It can be clearly formed through so as to communicate.

Furthermore, as the inner circumferential lower surface 57c of the incision slot hole 57 and the outer surface of the first body 50a are formed angularly, the cutting mechanism may be guided while maintaining a horizontal state. Through this, the cutting surface (3a) may be formed to be flat to correspond to the virtual alignment surface (m5), and the implantation position of the implant to be placed in the periodontal tissue (P) is in the virtual alignment surface (m5) Correspondingly, it can be aligned horizontally.

At this time, it is preferable that each inner peripheral lower surface 57c of the cut-out slot hole 57 and the outer surface of the first body portion 50a are formed to be substantially perpendicular to 90°. Moreover, the outer surface of the first body portion 50a is formed in a vertical direction, and each inner circumferential lower surface 57c of the incision slot hole 57 is cut into a flat surface in which the cutting surface 3a is connected from the labial side to the lingual side. It is preferable to be formed at an angle that can be guided as much as possible.

Meanwhile, the cut-out slot hole 57 is formed around the boundary between the first body part 50a and the second body part 50b. At this time, each inner peripheral lower surface 57c of the labial incision slot hole 57a formed on the labial side of the periodontal tissue P and the lingual incision slot hole 57b formed on the lingual side of the periodontal tissue P is the virtual alignment surface ( It is preferable to be formed so as to be located on a continuous plane corresponding to m5).

That is, when the labial incision slot hole 57a and the lingual incision slot hole 57b formed to face it are located on a continuous plane, the cutting guide surface 54 formed based on the incision slot hole 57 ) is also located on a continuous plane. Accordingly, while the cutting mechanism is simultaneously supported on the cutting guide surface 54 corresponding to the labial side and the cutting guide surface 54 corresponding to the lingual side, the cutting surface 3a can be formed to be flat as a whole.

In addition, it is preferable that the first body portion 50a is provided with a locking alignment groove portion 59 that wraps around the outer surface of the remaining teeth at least one or more remaining in the periodontal tissue (P). That is, the first body portion 50a from which the second body portion 50b is divided and removed is precisely aligned with the periodontal tissue P through the engaging alignment groove portion 59, and the cutting guide surface 54 It may be disposed at a position corresponding to the virtual alignment surface m5. In addition, the first body portion 50a is firmly fixed to the periodontal tissue P through the fixing piece, and the cutting mechanism is guided to the cutting guide surface 54 so that it can be precisely cut.

Moreover, the inner surface of the engaging alignment groove portion 59 is formed to conform to a specific curve of the outer surface of the remaining teeth, that is, the masticatory surface. Therefore, since the engaging alignment groove portion 59 is fixed to the alveolar bone and aligned with the remaining teeth with low fluidity, the first body portion 50a may be formed in a shape that surrounds only the labial side of the periodontal tissue (P). . Through this, since the incision portion of the gum surrounding the alveolar bone can be minimized, the recovery period of the tissue after the procedure can be shortened. In addition, since the method of aligning the first body part 50a with the periodontal tissue P is a method of aligning the first body part 50a with the remaining teeth on the target arch side, the procedure can be performed with the patient's mouth wide open. Accordingly, an entry space such as a cutting mechanism or a suction mechanism and an operator's operation space are secured, so that the operation convenience can be remarkably improved.

At this time, an opening window communicating with the inside may be formed in the engaging alignment groove portion 59 . Therefore, it is possible to easily check the matching state between the remaining teeth and the inner surface of the engaging alignment groove portion 59 with the naked eye through the opening window. Through this, it is possible to intuitively and quickly determine whether the first body portion 50a from which the surgical guide 50 or the second body portion 50b has been divided and removed is aligned.

In addition, the engaging alignment groove portion 59 is the cutting guide combined surgical guide 50 or the second body portion 50b is divided and removed the alignment means of the first body portion (50a) as well as to constrain the position It can also function as a means of restraint. That is, the position of the first body portion 50a from which the cutting guide combined surgical guide 50 or the second body portion 50b is divided and removed through the fixing piece and the engaging alignment groove portion 59 is firm. Because it is tightly constrained, unintentional flow can be prevented in advance.

5 is a flowchart illustrating a method of manufacturing a surgical guide combined with a cutting guide according to an embodiment of the present invention, and FIG. 6 is an alignment of the erasing model in the method of manufacturing a surgical guide combined with a cutting guide according to an embodiment of the present invention. This is an exemplary view showing the process, and FIG. 7 is an exemplary view showing an erasing model applied to a manufacturing method of a surgical guide combined with a cutting guide according to an embodiment of the present invention. And, Figure 8 is a cross-sectional view showing the design information setting process of the cut slot hole in the manufacturing method of the surgical guide combined with a cutting guide according to an embodiment of the present invention, Figure 9 is a cutting guide according to an embodiment of the present invention It is an exemplary diagram showing the design information setting process of the incision slot hole in the manufacturing method of the combined surgical guide.

5 to 9, the cutting guide combined surgical guide 50 is a cutting surface profile (m6) replacement swab (s10), a virtual guide base (m9) setting (s20), the incision slot hole (57) It is manufactured through a series of processes such as design information setting (s30) and cutting guide combined surgical guide 50 manufacturing (s40).

First, a planning image m1 in which periodontal tissue information including surface information of the oral cavity and alveolar bone information is displayed as three-dimensional data is obtained. At this time, the planning image m1 includes surface information (m2a, m2b) and alveolar bone information for the oral cavity, preferably upper and lower jaw, and surface information (m2a, m2b) and alveolar bone information for the upper and lower jaw are preset. It is preferable to display the occlusal state based on the occlusal plane (m4).

In addition, the virtual alignment surface m5 is set at a position parallel to the occlusal plane m4 at a predetermined interval. In this case, the virtual alignment surface m5 is preferably set at a position spaced apart from the target arch side, and may be set both on the upper and lower sides with respect to the occlusal plane m4. Then, the three-dimensional data of the target arch side is replaced based on the three-dimensional data of the erasing model m30 that is virtually overlapped between the occlusal plane m4 and the virtual alignment plane m5, so that the cutting surface profile m6 ) is set (s10).

In detail, the upper and lower surface information (m2a, m2b) is 3D image data obtained with respect to the gums and remaining teeth on the target arch side, and may be obtained through an oral scanner. In addition, the alveolar bone information is three-dimensional data in which the appearance and density of the alveolar bone covered by the gums are displayed, and may be acquired through a CT imaging device. These surface information (m2a, m2b) and alveolar bone information are aligned and matched in an occlusal state in consideration of the patient's vertical height based on the occlusal plane (m4).

And, the virtual alignment plane (m5) is set across the target maxillary arch side surface information and the alveolar bone information overlapped therewith in the horizontal direction. The virtual alignment surface m5 is set in consideration of the anatomical information of the oral cavity, the implantation center m8 of the implant (2 in FIG. 10), and the like, and is set between the occlusal plane m4 and the virtual alignment surface m5. The spacing of the can be set to 15 ~ 17mm. That is, the virtual alignment surface m5 is preferably understood as a virtual line set in the planning image m1 to guide the cutting position of the periodontal tissue P.

At this time, the implantation center (m8) of the implant may be set in plurality along the dental arch within the anterior region of the target maxillary arch, and it is preferable that the end of each implant is horizontally aligned to correspond to the virtual alignment surface (m5). do. For example, when the implant is an implant (2 in FIG. 10), the center m8 is horizontally aligned so that each upper end of the implant (2 in FIG. 10) matches the virtual alignment surface m5. can

And, it is preferable that the cutting surface profile m6 is set through the following series of steps.

In detail, the horizontal reference plane m31 of the erasing model m30 is virtually arranged to coincide with the occlusal plane m4, and is virtually overlapped with one side of the target arch side 3D data.

Here, in the erasure model m30, at least one side of the horizontal reference plane m31 matching the occlusal plane m4 is in the interval h between the occlusal plane m4 and the virtual alignment plane m5. It is preferable to protrude correspondingly. In addition, the erasure model m30 is preferably formed in a semi-cylindrical shape covering the anterior region including the anterior teeth t1 and both premolars t5. This erasing model m30 is standardized into a plurality of three-dimensional data using the dental information and vertical height of the oral cavity as optional items and stored in a digital library in advance. In this case, it is preferable that the digital library be understood as a data storage in which the guide means used in the dental restoration process and the three-dimensional data required for designing the dental restoration are subdivided by type and size and stored. Such a digital library may be provided as hardware in a computer device for establishing a dental restoration plan, or may be provided as a server connected to the computer device through wired/wireless communication.

That is, the erasure model m30 may be pre-stored in the digital library as 3D data standardized in large/medium/small in consideration of anatomical information such as the radius value and vertical height of the anterior region. At this time, in the erasing model m30, as shown in the figure, the horizontal reference plane m31 is set across the center, and the upper and lower surfaces m32 and m33 of the erasing model m30 are above and below the horizontal reference plane m31. Each may be set to be spaced apart at a predetermined interval. In addition, at least one of the upper and lower surfaces m32 and m33 of the erase model m30 set as described above may be virtually disposed on the virtual alignment surface m5.

Then, one erase model m30 matching the distance between the occlusal plane m4 and the virtual alignment plane m5 set in the planning image m1 and the anterior region is extracted from the digital library. And, the horizontal reference plane m31 of the erasing model m30 is aligned with the occlusal plane m4, and one of the upper and lower surfaces of the erasing model m30 corresponding to the target arch side is the virtual alignment plane m5 and Virtually arranged to be aligned.

In this case, in the erasing model m30, the distance between the upper and lower surfaces from the horizontal reference plane m31 may be manually or automatically adjusted. Accordingly, as the extinction model m30 having the closest value to the patient's anatomical selection item is extracted from the digital library and the size is finely adjusted in a state in which it is virtually placed on the planning image m1, the cutting surface profile m6 ) can be set correctly.

On the other hand, an overlap boundary is set along the outer edge where the erasure model m30 and the 3D data on the target arch side are overlapped. At this time, the 3D data on the target maxillary arch inside the overlapping boundary is erased and replaced with a one-sided image of the erasing model m30.

In detail, the overlapping boundary is set along the perimeter where the erasure model m30 and the 3D data on the target arch side are overlapped. Here, the overlapping boundary is preferably understood as a perimeter line formed by intersecting each face information of the erasure model m30 and the target maxillary 3D data.

And, a part of the target maxillary 3D data protruding upward based on the overlapping boundary is set as a deletion area and deleted. In addition, the one-surface image corresponding to the target arch side of the upper and lower surfaces m32 and m33 of the erasing model m30 remaining inside based on the overlapping boundary covers the inside of the overlapping boundary instead of the deletion area. are swapped out. In other words, it is preferable to understand that the replacement of the target arch-side surface information with the erasing model m30 means that only the data of the erasing model m30 overlapped with the target arch-side 3D data is erased. Through this process, the cutting surface profile m6 may be set in response to the virtual alignment surface m5 in the target maxillary three-dimensional data.

That is, the cutting position of the actual periodontal tissue is quickly and easily set by a simple method of superimposing and erasing the erasing model m30 with the upper and lower surface information m2a, m2b. Therefore, it is possible to fundamentally solve the problems in which the design time is delayed and the design precision is lowered due to the manual setting of the cutting positions in the upper and lower surface information (m2a, m2b) in the prior art. In addition, since the image data is processed in such a way that standardized data such as the erasing model m30 is virtually placed and erased from the upper and lower surface information m2a, m2b and the virtual guide base m9 to be described later, the design time is significantly reduced. can be shortened to

Meanwhile, the three-dimensional data of the inner and outer surfaces of the cutting surface profile m6 and the periodontal tissue information are set as the inner surface information of the virtual guide base m9. Then, the information on the outer surface of the virtual guide base m9 is set by extending outwardly from the inner surface information of the virtual guide base m9. Then, the dividing line m7 is virtual set in correspondence with the virtual alignment surface m5 (s20).

In detail, the virtual guide base m9 is preferably understood as schematic design information of the surgical guide 50 combined with the cutting guide. That is, as the design information of the coupling hole 56 and the design information of the incision slot hole 57 are further set in the virtual guide base m9, the design information of the surgical guide 50 combined with the cutting guide is final. can be obtained. As such, since the inner surface information of the surgical guide combined with the cutting guide 50 is set based on the three-dimensional data of the target maxillary arch obtained in response to the actual oral cavity, the degree of conformity with the oral cavity can be significantly improved. In addition, since the outer surface information is obtained by a simple method in which the inner surface information is simply expanded/spaced outward with a predetermined thickness/interval, design convenience can be significantly improved.

Here, the dividing line m7 is formed to horizontally cross the virtual guide base m9 corresponding to the virtual alignment surface m5. Moreover, the dividing line m7 is formed as a virtual surface extending in the horizontal direction to the outside of the cutting surface profile m6. Accordingly, the periodontal rule inner and outer side surfaces, which are the lower ends of the dividing line m7, are set as the design information of the first body portion 50a, and the upper surface of the cutting surface profile m6, which is the upper end side of the dividing line m7. The side is set as the design information of the second body part 50b. At this time, the inner surface information of the first body portion 50a is set based on the inner and outer three-dimensional data of the periodontal tissue P, and the inner surface information of the first body portion 50a is the cutting surface profile m6 ) is set based on

As such, in the present invention, the erasure model (m30) is virtually arranged corresponding to the preset occlusal plane (m4) and the virtual alignment plane (m5), and based on this erasing model (m30), the upper end of the 3D data on the target arch side In a simple way in which the side is erased, design information about the basic shape of the surgical guide 50 combined with the cutting guide is obtained. Therefore, it is possible to manufacture the actual surgical guide 50 combined with a cutting guide that is easy to design and has a remarkably high precision with the oral cavity. In addition, the erasure model (m30) is pre-stored in the digital library, and a single erasing model (m30) most suitable for the oral cavity is extracted and virtually placed on the planning image. . Through this, the design time can be remarkably shortened, and design convenience can be remarkably improved due to the low design difficulty.

At this time, the design information m51 of the guide hole for guiding the implantation of the implant is virtually placed on the virtual guide base m9. In detail, the design information m51 of the virtual guide hole is set based on the position and direction of the implantation center m8 in consideration of the anatomical structure of the oral cavity. And, the design information m51 of the guide hole is virtually arranged in correspondence with the center of implantation (m8), and based on the design information (m51) of the guide hole, the size of the sleeve and the inner circumferential shape of the coupling hole to which the sleeve is coupled Design information is set. At this time, it is preferable to understand that the hatched portion indicated by d2 in FIG. 8 is erased based on the design information m51 of the guide hole and is formed as a real coupling hole.

Furthermore, as the inner surface of the second body part 50b is set through the erasure model m30, the surgical guide combined with the cutting guide 50 manufactured before bone preparation and the periodontal tissue P after bone preparation are formed. The degree of improvement is improved, and through this, the implantation precision of the implant can be remarkably improved.

On the other hand, the virtual cut-out block m41 is arranged along the dividing line m7 and is virtually arranged in plurality, and the overlapping area of the plurality of virtual cut-out blocks m41 and the virtual guide base m9 is erased. Through this, design information of the surgical guide combined with the cutting guide 50 in which the incision slot hole 57 is formed along the boundary between the first body part 50a and the second body part 50b can be obtained. have.

Here, it is preferable that at least the lower surface m42 of the virtual cut-out block m41 is formed in a three-dimensional shape protruding to a predetermined thickness. Moreover, the virtual cut-out block m41 may be formed to have a front and rear spacing that is less than the thickness of the second body part 50b and exceeds the thickness of the first body part 50a. The virtual cut-out block m41 is arranged so that its lower surface m42 matches the virtual alignment surface m5, and is arranged around the dividing line m7.

At this time, it is preferable that the distance between the virtual cut-out blocks m41 is densely arranged with a minimum distance sufficient to form the connection part 58 . Accordingly, the time required to cut the connecting portion 58 with a dental grinder or the like can be minimized. In addition, each inner peripheral lower surface 57c of the cut-out slot hole 57 may be formed as a substantially continuous surface. Accordingly, when the cutting mechanism is guided to move along the cutting guide surface 54 of the first body portion 50a from which the second body portion 50b is divided and removed, the cutting surface 3a becomes the virtual alignment surface. It can be cut corresponding to (m5).

Here, it is preferable that the virtual incision block m41 is set in a state of being spaced apart along the inner and outer circumferences in consideration of the anatomical deviation of the oral cavity and stored in the digital library. Accordingly, when the set image m40 of the virtual cutout block m41 is extracted from the digital library, a plurality of the virtual cutout blocks m41 are simultaneously disposed in response to the dividing line m7. Through this, the design time of the surgical guide 50 combined with the cutting guide can be further shortened.

In addition, each lower surface of the virtual cutout block m41 included in the set image m40 is stored in a substantially aligned state on the same plane. Therefore, it can be easily matched with the dividing line m7, and the hassle of precisely adjusting each arrangement position in the process of individually disposing the virtual cutout block m41 can be minimized.

At this time, the virtual cutout block m41 is set as a set image m40, and the interval between each virtual cutout block m41 can be adjusted manually or automatically. Accordingly, each spacing of the virtual incision block m41 may be adjusted to correspond to different dental arch cross-sectional areas according to patients. Through this, the connection portion 58 may be formed while maintaining a thickness that can have a predetermined strength.

In detail, referring to FIG. 9A , a set image m40 in which a plurality of the virtual cutout blocks m41 are virtually arranged to correspond to the outer edge of the cutting surface profile is extracted from the digital library, and the planning image ( m1). And, referring to FIG. 9B , the set image m40 is aligned with the dividing line m7 formed to correspond to the virtual alignment surface on the virtual guide image m9. At this time, preferably, each lower surface of the virtual cut-out block m41 is aligned to match the dividing line m7.

Subsequently, an overlapping portion (refer to d1 of FIG. 8 ) between the virtual cutout block m41 and the virtual guide base m9 is set as an erase region. Accordingly, design information m57 of the top and bottom and left and right inner surfaces of the incision slot hole may be obtained based on the upper and lower and left and right outer surface information of the virtual cutout block m41. In addition, based on the design information (m57) of the incision slot hole, a portion surrounding the inner and outer surfaces of the periodontal tissue is formed as the design information (m50a) of the first body portion, and the portion surrounding the cutting surface is the second body portion It is formed with design information m50b. Through this, the design information m50 of the surgical guide combined with the cutting guide is acquired on the planning image m1.

The design information m50 of the surgical guide combined with the cutting guide obtained in this way is transmitted to a manufacturing apparatus such as a 3D printer, and the actual surgical guide combined with the cutting guide may be manufactured.

As such, in the present invention, the virtual alignment surface m5 is set based on the image data obtained for the oral cavity before the periodontal tissue P is cut, and fracture cutting is performed based on the set virtual alignment surface m5. The surgical guide is designed and manufactured considering the periodontal shape of the completed state. Therefore, the inner surface of the first body part 50a side of the surgical guide 50, which is manufactured before the bone preparation of the periodontal tissue P proceeds, is the cutting of the periodontal tissue P where the bone preparation is completed. It may be manufactured to precisely match the surface 3a. Through this, the implantation of the implant using the cutting guide combined surgical guide 50 can be accurately guided in response to a predetermined tooth restoration plan.

In addition, design information for the cut-out slot hole 57 capable of transforming the surgical guide into a cutting guide is simultaneously set in the design information of the surgical guide for guiding the implantation of the implant. Therefore, a product manufactured based on one design information can be easily transformed into a surgical guide or a cutting guide as needed.

Through this, the design of the guide means required to place the implant can be reduced to only one time, so that design speed and design convenience can be remarkably improved. In addition, after 3D printing the real thing in two places with one design information, it can be easily transformed into a surgical guide or a cutting guide, respectively.

10 is an exemplary view showing a state in which the holder device is implanted on the cut alveolar bone to which the present invention is applied, and FIG. It is also

10 to 11 , the plurality of holder abutments 1410 are flattened to horizontally support the fixing bar 1430 for mounting the overdenture 60 to the periodontal tissue P. It is implanted on the cutting surface 3a. In addition, the fixing bar 1430 and the plurality of holder abutments ( 1410) are mounted to be inserted at the same time. As described above, by using the surgical guide combined with the cutting guide and the method for manufacturing the same according to the present invention, the alveolar bone of the oral cavity can be accurately cut, and the dental restoration is placed in a preferred position, so that the dental restoration is stable. can be maintained as

On the other hand, terms such as "comprises", "comprises", "provide" or "have" described above mean that the corresponding component may be inherent, unless otherwise stated. It should be construed as not excluding components, but may further include other components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

As described above, the present invention is not limited to each of the above-described embodiments, and modifications can be implemented by those of ordinary skill in the art to which the present invention pertains without departing from the scope of the claims of the present invention. and such modifications are within the scope of the present invention.

3a: cutting surface 50: surgical guide combined with cutting guide
50a: first body part 50b: second body part
51: guide hole 53: fixed surface
55: mold surface 57: cut slot hole
m4: occlusal plane m5: virtual alignment plane
m30: erasing model m31: horizontal reference plane
m41: virtual incision block

Claims (10)

The inner surface is formed as a fixed surface that wraps around the inner and outer surfaces of the periodontal tissue to be implanted, and the upper edge, which is selectively opened and exposed, is formed to correspond to the outer boundary of the virtual alignment surface. body part; and
The inner surface is disposed to face the cutting surface formed in the periodontal tissue in correspondence with the virtual alignment surface, and a guide hole through which the rotating mechanism is rotationally supported in the coupling hole formed in correspondence to the preset placement position to guide the implantation of the dental restoration implant. A surgical guide combined with a cutting guide comprising a second body part that is formed with a sleeve coupled thereto, which is selectively divided from the first body part. The method of claim 1,
An incision slot hole based on the outline of a plurality of virtual cut-out blocks that are virtually aligned along a division line set corresponding to the virtual alignment plane is formed through the boundary of the first body part and the second body part,
So that the movement of the cutting mechanism for cutting the upper end of the periodontal tissue is guided in correspondence with the virtual alignment surface along the upper edge of the first body portion divided and removed based on the incision slot hole of the second body portion, the first The upper edge of the body portion is a surgical guide combined with a cutting guide, characterized in that the surface is connected to each inner peripheral lower surface of the incision slot hole. 3. The method of claim 2,
A surgical guide combined with a cutting guide, characterized in that the inner circumferential lower surface of the incision slot hole and the inner surface of the second body part are formed in a horizontal position corresponding to the virtual alignment surface. 3. The method of claim 2,
A surgical guide combined with a cutting guide, characterized in that the inner circumferential lower surface of the incision slot hole and the outer surface of the first body part are formed at an angle. 3. The method of claim 2,
The thickness of the first body portion exceeds the thickness of the second body portion,
A surgical guide combined with a cutting guide, characterized in that the interval between the upper and lower inner periphery of the incision slot hole is less than the thickness of the second body part. 3. The method of claim 2,
Each inner peripheral lower surface of the labial incision slot hole formed on the labial side of the periodontal tissue and the lingual incision slot hole formed on the lingual side of the periodontal tissue to face the labial incision slot hole is positioned on a continuous plane corresponding to the virtual alignment surface. A surgical guide combined with a cutting guide, characterized in that it is set. The method of claim 1,
The first body portion has a cutting guide combined surgical guide, characterized in that the engaging alignment groove portion for aligning the engagement position by wrapping around the outer surface of the remaining teeth at least one or more remaining in the periodontal tissue. A virtual alignment plane in which a preset occlusal plane and an implantation position for a dental restoration are considered in a planning image in which periodontal tissue information of an occlusal state including oral surface information and alveolar bone information is displayed as three-dimensional data is set, the target A first step of setting a cutting surface profile by replacing the 3D data on the arch side based on the 3D data of the erasing model that is virtually overlapped between the occlusal plane and the virtual alignment plane;
The inner and outer three-dimensional data of the cutting surface profile and the periodontal tissue information are set as inner surface information of the virtual guide base, and the outer surface information of the virtual guide base is set by extending and protruding outward from the inner surface information of the virtual guide base, a second step in which a dividing line is set to correspond to the virtual alignment plane; and
At least the lower surface is flat and a plurality of virtual cut-out blocks of a three-dimensional shape protruding to a predetermined thickness are arranged along the dividing line and are virtually arranged, and the overlapping area of the virtual cut-out block and the virtual guide base is erased, so that the first body part A method of manufacturing a surgical guide combined with a cutting guide, comprising a third step of designing and three-dimensionally printing a surgical guide combined with a cutting guide in which an incision slot hole is formed along the boundary of the second body. 9. The method of claim 8,
In the first step, the cutting surface profile is
virtually arranged so that the horizontal reference plane of the erasing model coincides with the occlusal plane and virtual overlapping with one side of the target maxillary 3D data; It is set, including the step of setting a boundary;
The erasing model is a cutting guide characterized in that at least one side of the horizontal reference plane protrudes corresponding to the gap between the occlusal plane and the virtual alignment plane, and is formed in a semi-cylindrical shape covering the anterior region including the anterior teeth and both premolars. Combined surgical guide. 9. The method of claim 8,
In the third step, the movement of the cutting mechanism for cutting the upper end of the periodontal tissue corresponds to the virtual alignment surface along the upper edge of the first body portion from which the second body portion is divided and removed based on the incision slot hole. To guide, the design information of the cut-out slot hole is virtually aligned so that the lower surface of the virtual cut-out block is aligned with the dividing line.

Images