KR20190043682A - Oral cavity model for fabricating a guide template of precise dental implant surgery - Google Patents

Abstract

The present invention relates to an oral cavity model for manufacturing a guide template for guiding a position, a direction and a depth of a drill for drilling an alveolar bone according to a predetermined plan. A support rod for temporarily fixing an induction bushing for guiding the drill on the oral cavity model is included. The oral cavity model has a through hole penetrating an occlusal surface and a bottom surface. The support rod is installed so as to enter the through hole from the bottom surface of the oral cavity model and to protrude above the occlusal surface of the oral cavity model, and is separated from the oral cavity model through the bottom surface of the through hole.

Description

{Oral cavity model for fabricating a guide template for precise dental implant procedure}

The present invention relates to an oral cavity model that can easily produce a guide template capable of inducing a surgical procedure to be carried out precisely as planned in the implant, in particular, a dental implant placement procedure.

A dental implant is an artificial root made of a material having excellent biocompatibility (mainly titanium or titanium alloy or porcelain) on the alveolar bone of a missing tooth portion and is fixed by fusion with the alveolar bone tissue, Refers to a dental surgery procedure or an artificial tooth that is made in such a way as to enable an ordinary life to be carried out with almost the same sensation as the original tooth by forming an artificial tooth.

These implants have advantages in that they do not damage the surrounding teeth except the teeth requiring the operation, have a long life span and are very similar to the natural teeth, compared with the denture or bridge method, and more recently, Has become much more popular.

The method of implanting the implant is briefly described. First, the patient's gingiva is cut to expose the alveolar bone, the position of the implant is determined on the exposed alveolar bone, and then a part of the alveolar bone Thereby forming a hole for implanting the implant. Then, a fixture is placed in the hole formed in the alveolar bone, the gingiva is covered, and the alveolar bone is sufficiently fused with the fixture and the alveolar bone are fused for a suitable period of time. Thereafter, the fixed fixture is exposed in the gingival and abutment Implant procedure is completed by attaching an artificial tooth (crown). Here, according to the implant procedure, by installing a healing abutment on the fixture placed on the alveolar bone, the gingival suture after the fixture is placed and the incision is not performed again later.

On the other hand, when the drill is drilled directly after exposing the alveolar bone by cutting the gingiva in the implant procedure, a guide template called a guide template is used so that the drilling operation can be performed at an accurate position, Procedures using a surgical guide are introduced.

To create such a guide template, you need to prepare the oral model first. Traditionally, impression material is used to acquire the maxillary and / or mandibular minus of the recipient, and then plaster is poured into this to form a plaster model mimicking the maxillary and mandibular shapes of the recipient Recently, 3D models have been developed by 3D models based on 3D image data.

On the prepared oral model, a tooth defect site requiring implantation is transferred as it is, and a guide bushing for guiding and limiting the progress direction and depth of the drill is separated from the hole according to the implant operation plan As shown in FIG.

When the cushioning resin is applied and cured so as to enclose the fixed bushing and at least several teeth around it, and the resin in which the bushing is buried is taken out from the oral model, a guide with a bushing for inducing the implant drill The template is completed.

Patent Document 1 is an invention relating to a guide template registered by the present applicant, and Patent Document 2 is an invention relating to a fixation pin assembly for fixing a bushing on an oral model so that the bushing can be separated in a state embedded in a guide template. Patent Document 3 is a plate for coordinate synchronization for precisely drilling a hole on an oral model in accordance with an implant treatment plan established by using a computer program. Patent Document 4 discloses a plate for synchronizing a hole in a mouth model according to synchronized coordinate information Patent Document 5 relates to a software capable of establishing an implant procedure plan by computer, and Applicant has filed and registered many other inventions relating to a guide template.

However, since the conventional guide template is made by applying the curable resin on the oral model by hand, it is difficult to make the thickness to be constant, and therefore, the tendency to apply the excessively excessive curable resin in order to avoid the risk that the strength is not sufficient have. Therefore, when the guide template is made thick and inserted into the patient's mouth, the user feels uncomfortable, and the curing time is long.

In addition, as for the application of the curable resin by hand, it is difficult to make a guide template in which the complicated structure of the oral tissues follows the shape of the guide. In such a case, there is a case in which the curable resin is not stably mounted correctly. In order to solve such a problem, Patent Document 1 attaches an elastic body to the inner surface of the guide template. Although the construction of such an elastic body has led to considerable good effects, additional work of attaching the elastic body is required, and occasionally, the elastic body is often dropped.

In addition, when the curable resin is applied to the bushing surface, the bushing embedded in the guide template may be detached from the bushing surface.

In order to solve these problems, the present applicant has proposed, as a prior patent application, an invention related to " guide template for precise dental implant treatment ", filed on October 20, Respectively.

This prior application will be briefly described with reference to the drawings in the detailed description section. Basically, one or more layers of thermoplastic sheet are tightly adhered to the oral model by vacuum molding to have an accurate shape, and the induction bushing is surrounded by a thermoplastic sheet And has a fixed structure.

However, when the guide template made of the thermoplastic sheet is separated from the oral model, the guide bush inserted into the support rod must be separated from the guide rod. This process is more troublesome and troublesome than thought. In other words, since the direction in which the support rod is embedded in the mouth model is not constant, the support rod acts as a resistance in the process of separating the guide template, and when the guide template is separated by giving excessive force, the position of the guide bush is shaken The function as the guide template may be impaired, and even the oral model of the portion where the support rod is stuck may be broken.

In order to prevent this problem, the support rod should be exposed by appropriately cutting the thermoplastic sheet on the upper surface of the guide bush in order to pull out the support rod first. It is necessary to expose the support rod by a small- It is not easy to carry out, but if you make a mistake in your work, the guide template will be damaged and you will have to rebuild it from scratch.

Korean Patent No. 10-1039287 (issued on June 7, 2011) Korean Patent No. 10-0993666 (published Nov. 10, 2010) Korean Registered Patent No. 10-1353335 (published on Jan. 17, 2014) Korean Patent No. 10-1344472 (published on December 24, 2013) Korean Registered Patent No. 10-1190651 (Registered October 10, 2012)

It is an object of the present invention to provide a mouthpiece model that can more easily manufacture a guide template that can guide a surgical procedure for performing a dental implant placement procedure to be precisely performed as planned It has its purpose.

The present invention relates to an oral cavity model for producing a guide template for guiding a position, a direction and a depth of a drill for drilling an alveolar bone in accordance with a predetermined schedule, wherein an inductive bushing for guiding the drill is temporarily Wherein the support rod has a through hole penetrating through an occlusal surface and a bottom surface, the support rod being inserted into the through hole from the bottom surface of the oral cavity model and projecting over the occlusal surface of the oral model And is separated from the oral cavity model through the bottom surface of the through hole.

Here, the bottom surface of the through hole is provided with a flat surface orthogonal to the support rod, and the length of the support rod protruding from the occlusal surface can be adjusted by the depth at which the flat surface is formed.

According to an embodiment of the present invention, a projection structure may be formed on the surface of the support rod.

According to the embodiment of the present invention, the support rod has a multi-step structure with a lower end, and the through-hole may have a shape corresponding to the external shape of the support rod of the multi-step structure.

In addition, a screw thread may be formed at the lower end of the support rod according to various embodiments of the present invention, and a tool groove may be provided at the bottom of the support rod.

The present invention may further include a spacer having a hole connected to the through hole and on which the guide bushing is seated, and the spacer may be integrally formed with the oral cavity model.

The upper surface of the spacer may be formed with a number of intaglio figures specifying the length of the drill.

In addition, the spacer may include a color specifying a diameter of the drill.

In this case, the diameter of the drill is six colors of black, yellow, white, red, blue and green, and each color is sequentially designated as a drill diameter of 1.8, 2.3, 2.8, 3.3, 3.8 and 4.3 mm .

Alternatively, the diameter of the drill is seven colors of gray, black, yellow, white, red, blue, and green, and each color is sequentially represented by 1.8, 2.3, 2.8, 3.0, 3.5, 4.0, It may be to specify the diameter of the drill.

Since the support rod is installed and separated through the bottom surface of the oral cavity model of the present invention having the above-described structure, the support rod can be separated through the bottom surface of the wide and flat mouth model without any obstruction, This makes it very easy to remove the support rods first, thus eliminating the risk of bending the support rods and damaging the oral model during the removal of the guide template from the oral model.

Further, when the protruding support rods are removed, the work of cutting unnecessary thermoplastic sheets above the induction bushing is facilitated. Further, since it is possible to cut more accurately, there is a fear that the support state of the induction bushing is deteriorated due to excessive cutting errors It also has the advantage of being eliminated.

Further, since the oral cavity model for producing a guide template of the present invention is provided with spacers, it is possible to stably install the induction bushes according to various situations, further, by giving the spacer information about the length and diameter of the drill to be used at the time of surgery, It is possible to accurately and intuitively select and reflect the guiding bushing or surgical tag to be applied in the manufacturing process.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows a series of steps for preparing a mouth model for making a guide template.
FIG. 2 is a view showing a series of steps of manufacturing a guide template using the oral model prepared through the process of FIG. 1; FIG.
3 is a perspective view showing a completed guide template;
Figure 4 is a cross-sectional view of a support rod and guide bushing secured on the oral model of Figure 1;
5 is a cross-sectional view showing a structure in which a support rod and an induction bushing are fixed on an oral model according to the present invention.
6 illustrates various embodiments of a support rod applicable to an oral model according to the present invention;
7 is a sectional view showing still another embodiment of the oral cavity model according to the present invention.
8 is an embodiment of an oral cavity model equipped with a spacer containing implant surgery information;
9 is a diagram summarizing an embodiment relating to a color designating a diameter of a drill for an implant surgery.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; coupled " or " connected " indirectly.

FIG. 1 is a view showing a series of steps for preparing an oral cavity model MD for preparing the guide template 10, FIG. 2 is a view showing a step of preparing a mouth mold MD by using the oral cavity model MD prepared through the process of FIG. And a series of steps of fabricating the guide template 10 through vacuum molding.

The first step is to prepare an oral model (MD) that mimics the patient's oral tissues. As described above, the oral model (MD) is an analog type gypsum model in which gypsum is poured into a sound sample made using an impression material, as well as a digital mouth model in which a rapid modeling machine or a 3D printer is formed based on three- All can be used. However, considering the manufacturing cost and time, and the minimum precision required (oral conformability), traditional gypsum models are sufficient, so it is not always necessary to use expensive digital oral models.

When the oral cavity model MD is prepared, an inductive bushing 40 is detachably fixed on the oral cavity model MD to induce the progress of the drilling of the alveolar bone drilling hole at the planned position of the implant treatment. That is, the procedure plan established on the computer program includes information on the position, angle and depth of the implant, as well as the length and diameter of the implant. Based on this information, the multi- The support rod is inserted into the hole and the induction bushing 40 is detachably fixed to the support rod. References to Patent Documents 2, 3, and 4 can be referenced.

When the oral cavity model MD having the guide bushing 40 fixed at the correct position in accordance with the procedure is prepared (see FIG. 1), at least a part of the oral cavity model MD including the guide bush 40 (VC) between the first thermoplastic sheet S1 and the mouth model MD while applying heat to the first thermoplastic sheet S1 by arranging the first thermoplastic sheet S1 so as to surround the first thermoplastic sheet S1, The first thermoplastic sheet S1 is brought into close contact with the surface of the MD.

Here, the first thermoplastic sheet S1 should be in close contact with the guide bushing 40, and the first thermoplastic sheet S1 should be in contact with the oral cavity model (not shown) so as to secure a sufficient area that the guide template 10 is not shaken when the completed guide template 10 is inserted into the patient's mouth MD). The first thermoplastic sheet S1 can be made to wrap the entirety of the mouth model MD but the guide template 10 can be made in the mouth model MD since the number of teeth of the patient is sufficient or already another prosthesis is used, If you are concerned that it may be difficult to get it out, you can make it wrapped only partially.

If necessary, the second thermoplastic sheet S2 is placed on the first thermoplastic sheet S1 vacuum-formed so as to be in close contact with the mouth model MD, and heat is applied to the second thermoplastic sheet S2 similarly to the previous step (VC) is formed between the second thermoplastic sheet S2 and the first thermoplastic sheet S1 so that the second thermoplastic sheet S2 is attached to the surface of the first thermoplastic sheet S1 . The number of layers of the thermoplastic sheet to be laminated can be appropriately selected in consideration of the thickness of the thermoplastic sheet and the strength of the finished guide template 10. [ When the vacuum molding is completed, unnecessary portions are cut using a cutting device such as a laser LS to complete the guide template 10.

The guide template 10 completed through the above-described series of steps is schematically shown in Fig.

The guide template 10 of the present invention includes a support 20 for wrapping the buccal side B and the lingual side L and the occlusal surface O of at least one tooth and a guide bushing for guiding the drill for the alveolar bone drilling 40 are embedded in the treatment unit 30.

Here, the support portion 20 refers to a portion that serves to fix and support the entire guide template 10 at a predetermined position in the oral cavity. As described above, since the guide template 10 is made of the thermoplastic sheets S1 and S2 while covering the teeth and the proper number of teeth with the tooth model missing, A hollow portion having the same shape as that of the outer shape of FIG. Therefore, when the cavity portion is fitted to the correspondingly shaped tooth, the support portion 20 surrounds the buccal side B, the lingual side L and the occlusal surface O of the tooth, and thereby the guide template 10 is fixed do.

The support portion 20 may be formed to cover a part of the undercut U of the tooth beyond the maximum air circumferential portion H of at least one of the buccal side B and the lipped side L, ) Is fitted to the undercut (U) portion when it is mounted in the housing, it is elastically inserted so that there is no shaking.

There is no cavity for mounting the guide template 10 as a portion where the implant is performed (tooth missing portion), but the guiding bushing 40 for guiding the progress of the drilling drill is provided Is fixed.

4 is a cross-sectional view showing the support rod 50 and the guide bushing 40 fixed on the mouth model.

4, the support rod 50 is embedded on the upper side of the mouth model MD, that is, on the occlusal surface O, on which the induction bushing 40 is engaged do. The guide bushing 40 may be positioned more tightly by being fitted or screwed into the support rod rod 50 (not shown) (see Patent Document 2).

4, the induction bushing 40 inserted in the support rod 50 induces the progress of the drill, which means that the longitudinal direction of the support rod 50 is the drilling direction. However, since the perforation direction of the alveolar bone is individually planned in accordance with the specific oral tissues of each patient, the insertion direction of the support rod 50 can not be constant.

As described above, since the angle of the support rod 50 is not constant, it can be seen that almost all of the support rods 50 are not vertically erected. When the guide template 10 is detached from the mouth model MD in such a state that the support rod 50 is erected obliquely, the force of the lateral component is applied to the support rod 50, So that a resistance is applied. When the guide template 10 is pulled out with a strong force to overcome such a resistance, there is a high risk that the guide bushing 40 is pulled out or is displaced from its position, and the support rod 50 is raised from the original standing angle, Some of the oral cavity model (MD) of the mouth may be damaged.

If the guide template 10 is to be pulled out after the support rod 50 is first removed, a hole for pulling out the support rod 50 should be formed on the guide template 10. If the hole is too large, The supporting force of the workpiece is weakened. However, it is not easy to perform such an operation while the guide template 10 is fitted in the oral cavity model MD. Since the length of the support rod 50 protruding above the induction bushing 40 is not so long, it is extremely difficult and inconvenient to hold the support rod 50 and pull the support rod 50.

The present invention is intended to improve the applicant's previous invention and to provide a new oral model (MD) that can more easily and safely separate the guide template 10 from the oral cavity model (MD). 5 is a cross-sectional view showing a structure in which the support rod 50 and the guide bushing 40 are fixed on the oral cavity model MD according to the present invention.

As shown in FIG. 5, the present invention relates to an oral cavity model (MD) for manufacturing a guide template 10 for guiding a position, a direction and a depth of a drill for drilling an alveolar bone according to a predetermined plan, And a support rod 50 for temporarily holding the guide bushing 40 guiding the drill on the oral model MD.

In the oral cavity model (MD) of the present invention, a through hole (100) penetrating the occlusal surface (O) (upper surface of the oral cavity model) and a flat bottom surface is formed. The through hole 100 is in conformity with the position and direction of the drill through which the alveolar bone is drilled. The processing of the through hole 100 is established in the form of a computer based on the three-dimensional scan data on the oral tissue of the subject. Based on the digital data of the implanted treatment plan.

Here, the software that can establish the implant procedure plan by computer is presently introduced several products. The applicant of the present invention has also registered a prior patent of patent document 5 related to such software, and develops, sells and uses software having a trade name of "Platon ™" as a real product. In the software for the implant planning program, based on the patient's oral CT image, the treatment plan such as the position, length, diameter, and depth of the implant will be determined and stored in the CT image data. The through hole 100 can be precisely machined by a multi-axis processing machine (see Patent Document 4).

The support rod 50 is inserted into and fixed to the through hole 100 formed in the oral cavity model MD. In contrast to the conventional art, in the present invention, the support rod 50 is installed through the bottom surface of the mouth model MD And separated. Therefore, the through hole 100 is machined so as to penetrate the occlusal surface O and the bottom surface of the mouth model MD.

As described above, when the support rod 50 is configured to be installed and separated through the bottom surface of the mouth model MD, the support rod 50 protruding above the guide template 10 is pushed out to protrude from the bottom surface, The support rod 50 can be pulled out through the underside of the wide and flat mouth model MD so that the operation itself becomes extremely easy. Since the support rod 50 can be easily separated as described above, the risk that the support rod 50 is bent and the mouth model MD is damaged during the operation of extracting the guide template 10 from the oral cavity model MD is removed do.

In addition, when the protruding support rod 50 is removed, the operation of cutting unnecessary thermoplastic sheets S1 and S2 above the induction bushing 40 is facilitated, and more precise cutting can be performed. As a result, There is no possibility that the supporting state of the induction bushing 40 is deteriorated.

4, the support rod 50 is provided so as to enter the through hole 100 from the bottom surface of the mouth model MD and protrude above the occlusal surface O of the mouth model MD, (MD) through the bottom surface of the oral cavity (100). The cross sectional shape of the support rod 50 and the corresponding through hole 100 is not particularly limited as long as it can ensure the basic function of fixing the guide bushing 40. However, It is necessary to at least form a shape in which the cross-sectional shape in the direction toward the occlusal surface O from the bottom face of the oral cavity model MD is continuous but the cross-sectional area is not increased.

A flat surface 110 orthogonal to the support rod 50 may be formed on the bottom surface of the through hole 100. By adjusting the depth at which the flat surface 110 is formed, (O) can be adjusted. The height from the bottom surface of the mouth model MD to the occlusal surface O is not constant and the angle at which the support rod 50 is inserted also varies so that the length of the protrusion of the support rod 50 over the occlusal surface O is also constant I do not. It is also possible to provide the support rods 50 of various specifications having different lengths in order to sufficiently secure the protruding length of the support rods 50 under any circumstances, The depth of the through hole 100 can be adjusted to the bottom surface of the through hole 100 so that it is possible to cope with various situations even with a much smaller number of the support rods 50.

Figs. 6 and 7 show various embodiments of the support rod 50. Fig.

As shown in Fig. 6, the surface of the support rod 50 may be smooth (Fig. 6 (a)), or may form a protruding structure 52 on the surface to enhance the clamping force (frictional force) 6 (b)}. 6 (c), a thread 54 is formed at the lower end of the support rod 50, and a support rod 50 is provided at the bottom of the support rod 50. In this case, A tool groove 56 may be formed in which a tool, such as a screwdriver, can be fitted. Although the drawing shows an example of the slotted groove as the tool groove 56, it is also possible to make the cross groove or the hexagon hole into the tool groove 56 as well.

Each embodiment of the various support rods 50 of Fig. 6 may be modified into the form of Fig. The support rod 50 of FIG. 7 has a multi-stage (58) structure with a thicker bottom end. Since the upper end of the support rod 50 is fixed to the thickness of the guide bushing 40 and the support rod 50 can be inserted and removed through the bottom surface of the mouth model MD, 58) structure. As the surface area increases, the frictional force increases and the fastening force improves. As the lower portion becomes thicker, the support rod 50 can be grasped and the force can be easily removed. Of course, the through hole 100 should be machined to have a shape corresponding to the contour of the support rod 50 corresponding to the multi-stage structure of the support rod 50.

8 shows another embodiment of the present invention including a spacer 200 having a hole extending coincident with the through hole 100 formed in the mouth model MD and having a flat upper surface on which the induction bushing 40 is seated. Fig. In FIG. 8, the structure of the support rod 50 is omitted in order to show the structure of the spacer 200 well.

The spacer 200 is intended to accommodate the case where the inductive bushing 40 should be seated at a point away from the surface of the mouth model MD. The installation height of the guide bushing 40 should be appropriately set in order to guide the progress of drilling from the beginning to the end of the drilling operation.

However, depending on the oral condition of the patient (such as when the alveolar bone or gingiva is too short), it may be necessary to set the proper position of the guide bushing 40 on the surface of the oral cavity model MD, 50, it is impossible to fix the induction bushing 40 to the air without any other support. The embodiment of FIG. 8 corresponds to such a case, and the spacer 200 serves to adjust the proper height of the induction bushing 40. FIG.

Further, the spacer 200 may be provided with important information at the time of implant surgery, that is, by designating the length and diameter of the drill, or the type of the guide bushing 40 to be used at the planned operation position.

Among the prior patent applications of the present applicant, Korean Patent Application No. 2017-0116257 (filed on 2017.09.12) describes a configuration related thereto, and a brief description thereof is as follows.

Applicants indicate from one to five circular shapes corresponding to drill lengths of a total of five steps on the body surface of the implant drill drill while the upper surface of the guide bushing 40 corresponds to the length of the drill to be used A number of intaglio patterns are displayed. That is, the practitioner can precisely perform the operation without checking the length of the drill merely by selecting a drill having the same number of circular shapes in accordance with the number of the engraved figures displayed on the upper surface of the guide bush 40.

Corresponding to the constitution of this prior patent application, in the present invention, there is provided an embodiment in which the number of intaglio figures 210 designating the length of the drill to be used on the upper surface of the spacer 200 is displayed. The intaglio pattern 210 displayed on the spacer 200 also designates the length of the drill, but more directly designates the guide bushing 40 to be seated on the spacer 200. That is, when the corresponding bushing 40 is seated on the spacer 200, the upper surface of the spacer 200 is covered and the intaglio shape 210 is not seen. Instead, the induction bushing 40, To the corresponding position.

Furthermore, the color of the spacer 200 may be made different from that of the mouth model MD, and the induction bushing 40 having different colors may be directly specified by the color of the spacer 200, thereby finally designating the diameter of the drill. Such a configuration is also described in the above prior patent application.

FIG. 9 is a diagram summarizing two embodiments related to the color indicating the diameter of the drill to be used in the implant surgery. This is based on the fact that commercially available implants can be grouped into two series.

As shown in FIG. 9, the colors of the first group, which designate the diameter of the drill, are six colors of black, yellow, white, red, blue and green and each color is sequentially 1.8, 2.3, 2.8, 3.3, The diameter corresponding to the drill of 4.3 mm is designated. The color of the second group is seven colors of gray, black, yellow, white, red, blue and green, and gray is added to the first group. In the second group of colors, the diameters corresponding to drills of 1.8, 2.3, 2.8, 3.0, 3.5, 4.0, and 4.2 mm are sequentially designated.

For example, in the case of FIG. 8, since the spacer 200 is yellow, the diameter of the corresponding drill is 2.3 mm for the first group, and 2.8 mm for the second group.

The mouth model MD and the spacer 200 may be integrally manufactured in a batch. For example, by using a rapid prototyping machine or a 3D printer, the entire oral cavity model MD including the spacer 200 can be created at one time. Particularly, in recent years, as 3D printers have developed, it has become possible to apply various colors to a single product. Therefore, by making the spacer 200 integrally formed with the engraved figure 210 in a color different from that of the mouth model MD, As well as the diameter of the drill based on the color information in Fig. 9 can be specified.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

The present invention relates to an oral cavity model suitable for producing a guide template capable of inducing a surgical procedure for performing a dental implant placement procedure to proceed precisely as planned.

MD: Oral Model 10: Guide Template
20: support part 30:
40: guide bushing 50: support rod
52: projection structure 54:
56: tool groove 58: multi-
100: through hole 110: flat surface
200: spacer 210: engraved shape
S1: first thermoplastic sheet S2: second thermoplastic sheet
B: buccal side O: occlusal side
L: lingual H: maximum wind part
U: Undercut

Claims (13)

An oral cavity model for producing a guide template for guiding a position, a direction and a depth of a drill for drilling an alveolar bone according to a predetermined plan,
And a support rod for temporarily fixing an induction bushing for guiding the drill on the oral cavity model,
The oral cavity model has a through hole penetrating the occlusal surface and the bottom surface,
Wherein the support rod is installed so as to protrude from the bottom surface of the mouth model into the through hole and protrude above the occlusal surface of the mouth model and to separate from the oral cavity model through the bottom surface of the through hole. Oral model. The method according to claim 1,
Wherein the through hole has a flat surface perpendicular to the support rod and a length of the support rod projecting onto the occlusal surface is adjusted by the depth at which the flat surface is formed. Model. The method according to claim 1,
And a protruding structure is formed on a surface of the support rod. The method according to claim 1,
Wherein the support rod has a thicker lower end in a multi-step structure, and the through-hole has a shape corresponding to the outer shape of the support rod of the multi-stage structure. 5. The method according to any one of claims 1 to 4,
Wherein a thread is formed on a lower end of the support rod, and a tool groove is provided on a bottom surface of the support rod. The method according to claim 1,
Further comprising a spacer having a hole connected to the through-hole and on which the guide bushing is seated. The method according to claim 6,
Wherein the spacer is integrally formed with the oral cavity model. The method according to claim 6,
And a number of intaglio figures for designating the length of the drill are formed on the upper surface of the spacer. 9. The method according to any one of claims 6 to 8,
Wherein the spacer includes a color designating a diameter of the drill. 10. The method of claim 9,
Wherein the diameter of the drill is six colors of black, yellow, white, red, blue, and green. 11. The method of claim 10,
Wherein the six colors of black, yellow, white, red, blue and green designate drill diameters of 1.8, 2.3, 2.8, 3.3, 3.8 and 4.3 mm, respectively. 10. The method of claim 9,
Wherein the diameter of the drill is seven colors of gray, black, yellow, white, red, blue, and green. 13. The method of claim 12,
Wherein the seven colors of gray, black, yellow, white, red, blue and green designate drill diameters of 1.8, 2.3, 2.8, 3.0, 3.5, 4.0 and 4.2 mm, respectively. .

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