TW201828893A - Dental Implant Surgical Guide with Emergency Profile Index and Manufacturing Method thereof - Google Patents

Abstract

A dental implant surgical guide with emergency profile index and manufacturing method thereof is provided. The dental implant surgical guide comprises a stable base, a guiding groove, and an emergency profile index. Wherein the fixing base is movably disposed on at least one support tooth of patient; the guiding groove is corresponding to a missing teeth portion for guiding the position and direction of formation of an implant hole; and the emergency profile index is adjacent to the guiding groove and has a terminal pointing an edge of the implant platform of the missing teeth portion.

Description

Dental implant guide plate with depth guide and preparation method thereof

The invention relates to a method for preparing a dental implant surgical guide, in particular to a preparation method of a dental implant guide with a guiding groove and a depth guiding member.

Dental implant surgery refers to the process of implanting artificial teeth in the missing teeth after the missing teeth. The main purpose is to drill a hole in the gingival and alveolar bone of the missing tooth, and implant the artificial root into the hole in the alveolar bone. After the artificial root and the alveolar bone are tightly combined, the artificial tooth can be fixed on the artificial tooth root. To complete the reconstruction of the denture.

In general, the planning of implant surgery depends on the patient's medical history, computerized tomography, X-ray image, etc. to determine the position of the implant and plan the surgery, often rely on the individual experience of the dentist. However, artificial judgment often leads to errors in surgical operations and affects the accuracy of implant surgery. In particular, if the depth of the artificial root is implanted, if the position of the implant is offset, the subsequent fixed denture cannot effectively replace the original tooth.

For example, the depth of the artificial root implant often affects the appearance of the denture. If the implant is too deep or too shallow, the denture attached to the artificial root may be uneven in appearance, and its height is adjacent to the adjacent tooth. If the drop is not enough to meet the aesthetic requirements, the implanted teeth may not be able to bite normally and lose the function of the teeth. In addition, since the position of the artificial root is lower than that of the adjacent teeth, the gums next to the artificial root are prone to depression and get stuck. food residue.

Therefore, there is a need for a novel dental implant guide to assist the dentist in locating the position and depth of the artificial root during implantation, to improve the accuracy of manual implant surgery and to improve the aesthetic requirements of the implant.

In order to solve the above problems, the present invention provides a method for preparing a customized dental implant guide, which has an advanced profile index (EPI), which can be indicated under the tooth The position of the implant platform is used to mark the depth of the hole in the implant, so that the artificial root can be correctly introduced.

The depth guide is used in the subsequent implant operation to indicate the depth of the drilled hole at the implant, so that the subsequent artificial root can be correctly introduced, and the artificial root can be prevented from being too deep or too shallow.

The preparation method of the dental implant guide plate provided by the invention comprises the following steps: (A) obtaining a revolving model of the patient's oral cavity and a perspective image; (B) locating the position of the dental implant hole on the revolving model, And positioning the position of a dental implant platform by using the fluoroscopic image; (C) arranging a positioning post on the dental implant hole; (D) covering a curable material on at least part of the revolving model, laterally surrounding at least Part of the positioning post, and forming a cylinder, one end of which is located at the position of the dental implant platform to form a plastic plate; and (E) curing the plastic plate to prepare a dental implant guide. The dental implant guide includes a fixed base, a guiding groove, and a depth guide; wherein the fixed base is formed at least with respect to the partially turned model, such that the fixed base can be fixed to the portion And the guiding groove is formed according to the position of the positioning post; and the depth guiding member is adjacent to the guiding groove and has an end point indicating the dental implant platform.

According to a preferred embodiment, in step (A), the remodeling model is a plaster model or a polymer material model. However, the revolving model can be a model made of other materials in the field, and any material that can display a dental message in the patient's mouth can be used without particular limitation.

According to a preferred embodiment, in the step (A), the fluoroscopic image is an X-ray image or a computed tomography image. However, a fluoroscopic image of the patient's mouth can be obtained by other technical means in the art, as long as it can display various fluoroscopic images of the teeth and alveolar bone state of the patient's missing teeth and other healthy teeth adjacent to the missing tooth, and There are no special restrictions.

According to a preferred embodiment, in step (B), the position of the dental implant platform is determined according to the position of the alveolar bone of at least one reference healthy tooth adjacent to the missing tooth shown by the fluoroscopic image.

According to a preferred embodiment, in the step (D), the curable material may be a material conventionally used in the art for preparing a surgical guide, such as a photocurable or heat-curable material, and is not particularly limited.

According to a preferred embodiment, in the step (D), the curable material covers at least the missing tooth mold and the at least one healthy reference dental mold and surrounds the positioning post to form the molding plate. However, in other embodiments, the curable material can be further covered to other adjacent healthy teeth of the reference healthy tooth. Preferably, the curable material covers at least one healthy dental mold over the midline on the remodeling model.

According to a preferred embodiment, in the step (D), the surface of the fixed base facing the flipping model at least conforms to the outer contour of the reference healthy dental mold, so that the surface can be at least with the reference healthy dental mold. Match each other. However, in other embodiments, the surface may have an outer contour conforming to other adjacent healthy dental molds extending from the reference healthy dental mold, and may even extend to an integral revolving model outside the dental implant hole, so The surface can be matched to the revolving model.

According to a preferred embodiment, in the step (D), the end of the cylinder is embedded with a metal wire having a length of 1 to 2 mm. The wire can be, for example, an orthodontic wire for dental use.

According to a preferred embodiment, in step (D), the guiding groove is an open groove or a closed groove. And the guiding groove guides the position and direction of the buccal side, the lingual side, and the near telecentric of an implant hole. Further, the depth of the guide groove is preferably 6 mm or more, and the diameter thereof is preferably 2 to 5 mm, and may be, for example, 2.0, 2.8, 3.3, 4.1, or 5 mm, depending on the size of the drill hole.

In addition, the present invention further provides a dental implant guide, comprising: a fixed base movably sleeved on at least one reference healthy tooth of a patient; a guiding slot corresponding to one of the patient's missing teeth; And a depth guide adjacent to the guiding slot and having an end point; wherein the guiding slot guides a position and a direction of the implant hole, the end point indicating a position of the implant platform of the missing tooth.

The dental implant guide provided by the present invention is preferably produced by the preparation method described above.

In a preferred embodiment, the fixed base has a surface conforming to at least one of the outer contours of the reference healthy tooth such that the surface can at least match the reference healthy tooth. In addition, the fixed base preferably has the shape of an arch curve. However, in other embodiments, the surface may have an outer contour conforming to other adjacent healthy teeth extending from the reference healthy tooth, and may even extend to all of the same row of teeth (upper or lower) beyond the implant hole The surface can be matched to the reference healthy tooth and other healthy teeth such that the dental implant guide can be attached to the patient's teeth.

In a preferred embodiment, the end of the depth guide is embedded with a metal wire having a length of 1 to 2 mm. The wire can be an orthodontic wire commonly used in dentistry.

In a preferred embodiment, the guiding groove is an open groove or a closed groove.

In a preferred embodiment, the guiding groove guides the position and direction of the buccal side, the lingual side, and the near telecentric of an implant hole.

In a preferred embodiment, the guiding groove has a depth of 6 mm or more. In this way, the guiding groove can stably position the position and the angle of the drilling hole during the dental implant operation.

In a preferred embodiment, the guiding groove has a diameter of 2 to 5 mm. For example, it can be 2.0, 2.8, 3.3, 4.1, or 5 mm, depending on the size of the hole.

According to the preparation method of the dental implant guide and the dental implant guide, the guiding groove in the dental implant guide provided by the present invention is used in the subsequent dental implant operation to assist the positioning of the dental implant drill hole. And drilling angle. In addition, the depth guide is used in the subsequent dental implant surgery to indicate the depth of the drilled hole at the implant, so that the artificial implant root can be correctly introduced, thereby avoiding the problem that the artificial root is implanted too deep or too shallow, and then Ensure that the height of the denture fixed to the artificial root is aligned with the adjacent teeth. In addition to the aesthetic requirements, the implanted teeth can be properly engaged, and the gums behind the artificial root can be prevented from being recessed and caught in the food. The problem of residue.

In the present invention, the term "retrofit model" refers to the transformation of a physical dental mold according to the patient's oral condition, which can display information on the patient's oral cavity. The term "reference healthy teeth" refers to the teeth adjacent to the missing teeth. Therefore, the term "reference healthy dental model" refers to a tooth model that is reproduced according to the reference healthy teeth next to the patient's missing teeth.

In the present invention, the term "tooth implant platform" refers to the position of the upper edge of the alveolar bone of one or two reference healthy teeth adjacent to the patient's missing tooth to the position of the missing tooth, and the root of the tooth is also implanted at the missing tooth. When the artificial root is implanted into the depth of the gum. And the term "facial midline" means the dividing line of the front teeth.

The above and other features and advantages of the present invention will become more apparent from the detailed description of the preferred embodiments.

In the following, an embodiment will be provided to explain in detail embodiments of the invention. The advantages and effects of the present invention will be more apparent by the disclosure of the present invention. The drawings attached hereto are simplified and are used for illustration. The number, shape and size of the components shown in the drawings can be modified as the case may be, and the configuration of the components may be more complicated. Other variations and modifications can be made without departing from the spirit and scope of the invention as defined in the invention.

A flow chart of a method for preparing a surgical guide of the present invention is shown in FIG. Wherein, the step (A) is a pre-program, and a revolving model of the patient's mouth and a perspective image are obtained. Wherein, the remodeling model can be made into a revolving model 1 as shown in FIG. 2 by using a method of overmolding which is commonly used in the art, and the revolving model 1 The missing tooth mold 11, the health reference dental mold 12, and other healthy dental molds 13 are included. The fluoroscopic image is obtained by taking X-rays, and the fluoroscopic image should present the edentulous portion and the position of the alveolar bone of the reference healthy tooth.

Next, the step (B) is a positioning procedure for positioning the position of the implant hole 21 on the missing tooth mold 11 of the revolving model 1, as shown in FIG. 3, the implant hole 21 is a central groove (central groove) 14) and a root axis 15 at the intersection of the missing tooth mold 11. In addition, the position of the alveolar bone of the healthy tooth is referenced in the fluoroscopic image to locate the position of the implant platform 22 of the dental implant hole 21.

The positioning of the dental implant platform 22 is determined by the position of the alveolar bone of at least one healthy reference tooth adjacent to the missing tooth displayed in the fluoroscopic image, and the position of the alveolar bone at the missing tooth is not directly used as the implant platform. Therefore, before the subsequent dental implant operation, if the position of the alveolar bone at the missing tooth is lower than that of the dental implant platform 22, the alveolar bone at the missing tooth should be reconstructed by using the bone powder before the implanting to make the alveolar The edge of the bone is equal to the implant platform 22; or the position of the alveolar bone at the position of the missing tooth is higher than that of the implant platform 22, the alveolar bone at the missing tooth should be ground to the implant before implanting The dental platform 22 is contoured.

Step (C) is a drilling positioning procedure, as shown in FIG. 4, which is drilled at the implant hole 21 positioned in the previous step, and a positioning post 3 is inserted into the hole, and the height is greater than 6 Mm, diameter 2.8 mm. The positioning post 3 defines the position and angle of the implanted artificial root for the subsequent dental implant guide for the patient's dental implant surgery.

The step (D) is a guide molding process using a photo-curing material (Plaque Photo®, WP dental) to form a molding plate 3 on the revolving model 11, as shown in FIG. The photocurable material covers the reference healthy dental mold 12 and other healthy dental molds 13 and exceeds at least one healthy dental mold of the line 16 of the revolving model 11, and the photocurable material laterally surrounds the positioning post 3, In addition, a cylinder 41 is further formed, and a short metal wire 6 (such as an orthodontic line used for correcting teeth, about 1 to 2 mm) can be embedded at the end of the cylinder 41, and the end points thereof are located. The dental implant platform is positioned to form a molded panel 4. It is shown in Figure 6.

Finally, the step (E) is a guide forming process, and the molded model 1 and the molding plate 4 formed in the step (D) and covering the revolving model 1 are irradiated with halogen light, so that the molding plate is 4 curing to complete the preparation of a dental implant guide 5. The dental implant guide 5 is completed as shown in FIG. 6, and includes a fixed base 51, a guiding groove 52, and a depth guide 53. Wherein, the fixing base 51 is formed by curing the molding plate 4 covered by the missing tooth part mold 11, the reference healthy dental mold 12, and other healthy dental molds 13, so the fixing base 51 is fixed. One surface facing the remodeling model 1 conforms to the outline of the reference healthy dental mold 12 and other healthy dental molds 13, and can be matched with the reference healthy dental mold 12 and other healthy dental molds 13; the guiding groove 52 is The molding plate 4 is cured by laterally surrounding the positioning post 3 and has a depth D of 6 mm; and the depth guiding member 53 is adjacent to the guiding groove 52, which is substantially a columnar shape. The structure also has an end point 531 that is aligned with the implant platform 22 and embedded with the metal wire 6 to indicate the implant platform 22.

The dental implant guide plate prepared by the above method can insert a small piece of metal into the guiding groove 52, and then place the dental implant guide plate on the patient's tooth and irradiate X-ray, and confirm the X-ray image. The guiding groove corresponds to the position and direction of the buccal side, the lingual side, and the near telecentric position of the implant, and whether the direction and direction are correct, and the metal wire buried in the end of the depth guide is used to confirm the end in the X-ray image. The position of the implant platform indicated by the point is correct.

Although the dental implant guide plate prepared in the present embodiment is used for implant surgery for implanting an artificial tooth, the dental implant guide has only one guide groove and one depth guide. However, the number of guiding grooves and depth guides on the dental implant guide is not limited thereto, and should be determined depending on the patient's edentulous condition and the number of artificial teeth implanted in each implant operation.

1‧‧‧Revolving model

11‧‧‧ Missing tooth model

12‧‧‧Refer to healthy dental models

13‧‧‧Healthy dental model

14‧‧‧Central Ditch

15‧‧‧ root axis

16‧‧‧ midline

21‧‧‧ implant hole

22‧‧‧ implant platform

3‧‧‧Positioning column

4‧‧‧plastic board

41‧‧‧Cylinder

5‧‧‧ implant surgery guide

51‧‧‧Fixed base

52‧‧‧ Guide slot

53‧‧‧Deep guide

531‧‧‧Endpoint

6‧‧‧Metal wire

1 is a preparation procedure of a dental implant guide according to an embodiment of the present invention. 2 is a perspective view of a revolving model according to an embodiment of the present invention. 3 is a schematic diagram of positioning on a revolving model in an embodiment of the invention. 4 is a schematic view showing a positioning post in an embodiment of the present invention. Figure 5 is a schematic illustration of a molding die formed on a revolving model in accordance with one embodiment of the present invention. Figure 6 is a perspective view of a dental implant guide in an embodiment of the present invention.

Claims (20)

A method for preparing a dental implant guide includes: (A) obtaining a revolving model of the patient's mouth and a perspective image; (B) locating the position of the implant hole on the revolving model, and positioning using the fluoroscopic image a position of a dental implant platform; (C) providing a positioning post at the dental implant hole; (D) covering a curable material on at least a portion of the revolving mold, laterally surrounding at least a portion of the positioning post, And forming a cylinder having an end point at a position of the edge of the alveolar bone to form a plastic plate; and (E) curing the plastic plate to prepare a dental implant guide, the dental implant guide The plate includes a fixed base, a guiding groove, and a depth guiding member; wherein the fixed base is formed at least with respect to the partially turned model, such that the fixed base can be fixed to the partially turned model The guiding groove is formed according to the position of the positioning post; and the depth guiding member is adjacent to the guiding groove and has an end point indicating the dental implant platform. The preparation method according to claim 1, wherein in the step (A), the remodeling model is a plaster model or a polymer material model. The preparation method according to claim 1, wherein in the step (A), the fluoroscopic image is an X-ray image or a computed tomography image. The preparation method according to claim 1, wherein in the step (B), the position of the dental implant platform is based on the position of the alveolar bone of at least one reference healthy tooth adjacent to the missing tooth according to the perspective image. set. The preparation method according to claim 1, wherein in the step (D), the curable material covers at least the missing tooth mold and the at least one healthy reference dental mold and surrounds the positioning post to form the molding. board. The preparation method of claim 5, wherein the curable material covers at least one healthy dental mold over the center line of the remodeling model. The preparation method according to claim 1, wherein in the step (D), the surface of the fixing base facing at least one of the surface of the remodeling model conforms at least to the outer contour of the reference healthy dental mold, so that the surface can be at least The reference healthy dental models match each other. The preparation method according to claim 1, wherein in the step (D), the end of the cylinder is embedded with a metal wire having a length of 1 to 2 mm. The preparation method according to claim 1, wherein in the step (E), the guiding groove is an open groove or a closed groove. The preparation method according to claim 1, wherein in the step (E), the guiding groove guides the position and direction of the buccal side, the lingual side, and the near telecentric of an implant hole. The preparation method according to claim 1, wherein in the step (D), the depth of the guiding groove is 6 mm or more. The preparation method according to claim 1, wherein in the step (D), the guide groove has a diameter of 2 to 5 mm. a dental implant guide, comprising: a fixed base movably sleeved on one of the patient's missing teeth and at least one reference healthy tooth; a guiding groove corresponding to the missing portion of the patient; a depth guide adjacent to the guiding slot and having an end point; wherein the guiding slot guides a position and a direction of an implant hole, the end point of the depth guide indicating a dental implant platform of the missing tooth s position. The dental implant guide according to claim 13, wherein the fixed base has a surface conforming to at least one of the outer contours of the reference healthy tooth such that the surface can at least match the reference healthy tooth. The dental implant guide according to claim 13, wherein the fixed base has the shape of a dental arch curve. The dental implant guide according to claim 13, wherein the end of the depth guide is embedded with a metal wire having a length of 1 to 2 mm. The dental implant guide according to claim 13, wherein the guide groove is an open groove or a closed groove. The dental implant guide according to claim 13, wherein the guiding groove guides the position and direction of the buccal side, the lingual side, and the near telecentric of an implant hole. The dental implant guide according to claim 13, wherein the guide groove has a depth of 6 mm or more. The dental implant guide according to claim 13, wherein the guide groove has a diameter of 2 to 5 mm.