KR100920727B1 - Stent structure for an implant with an elastic materials for accurate guidanc-insertion - Google Patents

Abstract

The present invention relates to an implant stent for implanting the implant into the alveolar bone of the patient, to prepare the stent in advance to accurately implant the implant in the planned position to fit the appearance of teeth and gums in the oral cavity vertical and horizontal stability In order to provide, the technical configuration is in the implant stent for implanting the implant in the alveolar bone of the patient, the induction part fixing pin which is positioned and fixed to the position to implant the implant in the oral cavity or the like, on the upper side of the induction part fixing pin A stent induction part assembly including a stent induction part coupled to and a fixing screw coupled to an upper end of the stent induction part; A body portion adapted to the outside of teeth and gums in the oral cavity such that the stent induction part is integrally coupled; An implant stent including an elastic body for precision induction implantation comprising a; and an elastic body filled between the body portion and the oral cavity and the outside of the gum.

Induction assembly for implants, stents, elastomers, precision induction, stents

Description

Stent structure for an implant with an elastic material for accurate guidanc-insertion

The present invention relates to a stent (stent) for implantation, and more particularly, a stent for drilling work for drilling alveolar bone to implant the implant in the oral cavity of a person in the correct position, having a constant elastic force inside the stent The present invention relates to a stent for implants including an elastic body for precise induction placement, including an elastic body, so that a more stable, accurate and rapid process can be performed in the horizontal and vertical directions during the drilling operation.

Implant is a prosthesis used to replace a badly damaged tooth, or an artificial tooth made of a special metal (usually titanium or titanium alloy) is implanted in the jaw bone to fix it by tangling with bone after fixing it. By forming the artificial teeth, the treatment method that allows you to live with the same sense or chewing function as the original teeth.

These implants are widely used in recent years because they have advantages such as dentures, bridges, and the like, which do not damage the surrounding teeth other than those that require the procedure, have a long life, and have similar characteristics to natural teeth. .

Conventionally, the procedure for treating such an implant is as follows.

First, the gingival of the patient to be implanted is dissected to expose the alveolar bone. Next, the position of the implant to be inserted among the exposed alveolar bone is determined, and a predetermined position of the alveolar bone is drilled using a drilling tool such as a drill at the position to form a perforation for implantation.

Subsequently, the implant installation is completed by placing the implant in the formed perforation and covering the gingiva.

On the other hand, when implanting the gingival bone to expose the alveolar bone during the implantation process, using a direct drill or the like thereon, because it is difficult to pinpoint the exact position and direction to perform the drilling operation, usually stents (stent) I use an assistive device called.

The fabrication process of this stent is as follows.

First, before the implant procedure, the upper and / or lower jaw of the subject is obtained using a rubber impression material, and then the plaster is poured into the same to form the upper and / or lower jaw of the subject. Create a model.

This is then coupled to an artificial articulator to reproduce outside the oral cavity of the jaw joints and the upper and lower teeth, almost similar to those of the subject.

Subsequently, the tooth was lost and a virtual tooth model made of a transparent material at the position where the implant was to be treated was used as a stent.

Subsequently, a predetermined mark is placed at the position where the drill is to be inserted among the stents, and a mark indicating a direction to be drilled on the outside of the stent is performed. The operator performs a drilling operation using a drilling tool such as a drill with reference to the mark and the marking. To perform.

However, in the case of such a stent, it is very unstable to secure the stability in the vertical or horizontal direction during the punching operation for the dental or edentulous operator in contact with the inner surface.

When drilling the alveolar bone using the drill, the drill rotates at a high speed of about 1000 revolutions per minute.Because of the high-speed rotation of the drill, the drill rotates the alveolar bone at a high speed, so that the depth and direction are correct. It is very difficult to secure the stability in the vertical and horizontal directions with respect to the dental arch or dental arch.

In addition, in the case of an implant procedure using a conventional stent, a stent is formed and a gingival of the patient is incised, a stent is mounted, and a stent is used as an auxiliary tool to perform a drilling operation.

At this time, while the stent is manufactured in the presence of the gingival tissue, during the actual procedure, since the gingival is installed by installing the stent on the alveolar bone and then performing a puncture operation, misalignment occurs between the stent and the alveolar bone.

In addition, the drilling operation using the drill is a vibration occurs due to the high-speed rotation characteristics of the drill, the stent is inconsistent with the alveolar bone by the vibration, the position changes by shaking.

Therefore, inconsistency occurs between the mark initially displayed on the stent and the direction to be actually performed, which causes the drilling operation to be performed at a position and a direction different from that intended by the first operator.

The present invention has been made to solve the above problems, and is suitable for the appearance of teeth and gums in the oral cavity to provide stability in the vertical and horizontal directions to more accurately and quickly perform the drilling operation for placing the implant in the planned position An object of the present invention is to provide a stent for implants including an elastic body for precisely guided implantation.

In order to achieve the above object, an implant stent comprising an elastic body for precision induction according to the present invention,

In the implant stent for implanting the implant in the alveolar bone of the patient,

An induction part assembly for stent including a guide part pin which is positioned and fixed at a position to implant an implant in the oral cavity, a stent guide part coupled to an upper side of the guide part pin, and a fixing screw coupled to an upper end of the stent guide part;

A body portion adapted to the outside of teeth and gums in the oral cavity such that the stent induction part is integrally coupled; And

An elastic body filled between the body portion and the teeth in the oral cavity and the outside of the gum;

It is made, including.

And, the first wax is applied to the outside of the teeth and gums in the mouth before filling the elastic body.

In addition, the second wax is further applied to the lower end of the first wax before filling the elastic body.

In order to prevent the elastic body from being separated from the body portion, an adhesive is applied in advance to a contact surface of the elastic body to the body portion.

It is made by further forming a departure prevention portion integrally formed to protrude inward from a predetermined position of the lower end of the body portion.

Grooves of a predetermined length are further formed at a predetermined position on the inner surface of the body portion.

Except the occlusal surface between the body portion and the upper surface of the tooth can be further formed through the separation preventing hole formed in a predetermined position on the side of the body portion, and the separation prevention hole may be formed one or more.

In addition, the body portion is made of a material corrosion-resistant fiber to strengthen the rigidity.

The body portion may be formed of carbon fiber and may also be formed of glass fiber.

Prior to the application of the first wax and the second wax to the application region such as the teeth and gums in the oral cavity, which is the application region of the first wax and the second wax, a separating agent is further applied first.

Before filling the elastic body is made by first applying an adhesive to the upper end of the inner side of the body portion.

In the case of the maxillary teeth or extremely few teeth, it is possible to further penetrate the stent fixing portion to the alveolar bone through the outer one side.

Implant stent including the elastic body according to the present invention, by filling the elastic body between the body portion and the oral tissue to be suitable for the body portion, showing a more stable suitability than the implant guide stent (surgical stent) previously known, The elastic body filled and adhered to the inside of the body may not only have stability in the vertical and horizontal directions, but also make the body suitable for the appearance of teeth and gums in the oral cavity during various operations such as alveolar bone drilling for implantation. By firmly positioning and fixing the guide part for guiding the drill, it is possible to generate a holding force so that an optimal implant can be placed, and in the case of a complete dentition and a very small number of teeth, the fixing part is further provided on the outside. The retention force can be generated for optimal implant placement.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are photographs schematically showing a plaster model that raises the teeth and gums in the oral cavity, and FIGS. 3 to 5 schematically show the first wax and the second wax applied to the teeth and the gums of the plaster model, respectively. 6 to 13 is a photograph schematically showing the stent of the present invention bonded to the gypsum model, Figures 14 to 17 is a schematic view of the implant stent including an elastic body for precision induction according to the present invention It is a photograph shown.

Implant stent (1) comprising an elastic body for precision induction according to a preferred embodiment of the present invention,

As shown, first, in the present specification, in order to clarify and clearly understand the invention, a plaster model that raises the oral cavity of a real person is used.

The induction part fixing pin 21 of the stent induction part assembly 20 is positioned and fixed at the position where the implant is to be placed in the oral cavity or the like, that is, at the insertion position of the oral gypsum model 4.

In this case, the stent induction part assembly 20 includes a stent induction part 23 coupled to an upper side of the induction part fixing pin 21, and a fixing screw 25 coupled to an upper end of the stent induction part 23. (See FIGS. 7-10)

And, the body portion 10 is fitted to the outside of the teeth 3, gums 2, etc. of the plaster model 40, the stent induction portion 23 is integrally coupled.

 In addition, the elastic body 30 is filled between the body 10 and the outside of the teeth 3 and the gum 2 of the plaster model 40 is made to harden.

At this time, before filling the elastic body 30, the first wax 40 is applied to the outside of the tooth 3 and the gum 2, and the second wax 50 at the lower end of the first wax 40. Apply more.

The first wax 40 and the second wax 50 form a space to which the elastic body 30 is adhered to the inner side of the body portion 10.

Then, the lower boundary of the body portion 10 is limited by the second wax 50 to achieve a desirable shape.

On the other hand, the body portion 10 first, for the free space for the elastic body 30, in the case of childish jaw to give a space corresponding to a part of the lingual and labial tooth surface and the gum except the occlusal surface about 1-2mm thick It is preferable.

In addition, in the case of edentulous teeth, a space is provided so that all the gum parts without teeth can be overlaid (overlap).

However, the insertion part gum corresponding to the place where the implant is to be placed separately from the indental part and the indentation part is provided with a free space separate from the free space for the elastic body 30, thereby cooling and draining according to the high speed rotation of the drill. To facilitate the drilling operation for drilling.

In addition, the teeth of the jaw can be given a vertical and horizontal stability by eliminating the clearance between the occlusal surface and the cutting surface and the body portion (10).

Compared to the conventional implant guide stents (surgical stent) shows a more stable suitability, it can generate a holding force in the teeth.

After the body portion 10 is formed, the fixing screw 25 of the stent induction part assembly 20 is released from the induction part 23 and removed, and the stent induction part 23 is the body part 10. The implant stent (1) including an elastic body for precision induction according to the present invention in a state coupled to the) is preferably formed.

On the other hand, since the elastic body 30 filled in the inner space of the body portion 10 should not be separated, in order to prevent such separation in advance the adhesive on the contact surface with respect to the body portion 10 of the elastic body 30 It is preferable to apply in advance.

In addition, it is possible to further form a departure prevention portion (not shown) integrally formed to protrude inward from a predetermined position of the lower end of the body portion 10, the elastic body 30 by the separation prevention portion 30 is the body portion It is not separated from (10).

And, by forming a groove (groove, not shown) of a predetermined length at a predetermined position on the inner surface of the body portion 10, when filling the elastic body 30 to the inside of the body portion 10, the elastic body Since the 30 is filled in the groove and cured, the elastic body 30 is not separated from the body portion 10 by a part of the groove.

In addition, a separation preventing hole (not shown) formed through a predetermined position on the side of the body portion 10 except for the occlusal surface between the body portion 10 and the upper surface of the tooth 3 may be further formed.

When the elastic body 30 is filled through the release preventing hole, a part of the elastic body 30 is filled into the anti-separation hole and cured, so that the body part is partially part of the elastic body 30 of the anti-separation hole. Departure from (10) is prevented.

In this case, the separation preventing hole may be formed one or more.

In particular, before filling the elastic body 30, by first applying an adhesive to the upper end of the inner surface of the body portion 10, after the filling of the elastic body 30, the elastic body 30 is the body portion 10 The inner side of the adhesive is adhered to the upper end is prevented.

The body portion 10 is made of a dental resin and a similar biocompatible polymer material as a transparent material.

Therefore, the body portion 10 is preferably made of a material corrosion-resistant fiber to strengthen the rigidity, it is formed transparent.

In addition, the body portion 10 is preferably formed of carbon fiber, it may be formed of glass fiber.

The elastic body 30 is made of an elastic impression material with less deformation, such as a dental impression material made of rubber (rubber) material, as well as providing stability in the vertical and horizontal directions to the intraoral fit of the body portion 10, as well as holding force Also give.

The first wax 40 is applied to an application region of the tooth 3, the gum 2, or the like of the plaster model 4, which is an application region of the first wax 40 and the second wax 50. And prior to the application of the second wax 50, a separator is further applied first.

This is preferably formed by applying the body portion 10 to the upper end in the state in which the first wax 40 and the second wax 50 are applied (see FIGS. 3 to 5) (see FIG. 6). In order to smoothly remove the first wax 40 and the second wax 50 after the body portion 10 is formed.

11 to 13 illustrate a state in which the first wax 40 and the second wax 50 are smoothly removed after the body portion 10 is formed.

And, in the case of the teeth having a large number of teeth, that is, if the teeth or teeth are extremely small compared to the number of dental teeth because the greater stability than the body part 10 of the stent (1) according to the present invention It penetrates the outer one side of the alveolar bone to further secure the stability by combining the stent fixing portion (not shown), it is possible to implant precision implantation.

In addition, in order to precisely inject the implant, the through hole 10b (see FIG. 9) is further formed at a predetermined position of the body portion 10 in the implant placement position, and the stent induction part 23 By further forming the same through hole 23a (see FIG. 4) at a position corresponding to the through hole 10b, the through hole 10b and 23a to cool the heat generated during the drilling operation using a drill. Cooling water can be supplied through

In addition, it is preferable to further form a drainage passage 10a (see FIG. 17) which forms a constant passage from the position corresponding to the through hole 10b to the outside of the body portion 10 for smooth drainage of the supplied cooling water. Do.

The implant stent including the elastic body according to the present invention as described above, if the teeth are enclosed in the front and back, the insertion portion, and if the fluctuation of the teeth is not a big problem functionally, there is no need to add a separate holding device In other words, fitness is significantly improved.

This embodiment is only one example of a stent manufacturing method of a variety of methods, it is possible to manufacture a stent having a variety of shapes and functions by other various methods.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 and 2 are photographs schematically showing a plaster model that raises the teeth and gums in the oral cavity,

3 to 5 are photos schematically showing a state in which the first wax and the second wax is applied to the teeth and gums of the plaster model, respectively,

6 to 13 are photographs schematically showing the stent of the present invention bonded to the gypsum model,

14 to 17 is a photo schematically showing a stent for an implant including an elastic body for precision induction according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: stent 2: gums

3: tooth 4: oral plaster model

10: body part

20: guide part assembly for stent

21: guide part fixing pin 23: stent guide part

25: fixed screw 30: elastic body

40: first wax 50: second wax

Claims (14)

In the implant stent for implanting the implant in the alveolar bone of the patient, An induction part assembly for a stent including an induction part fixing pin positioned and fixed at a position to implant an implant in the oral cavity, a stent induction part coupled to the induction part fixing pin, and a fixing screw coupled to an upper end of the stent induction part; A body portion adapted to the outside of teeth and gums in the oral cavity such that the stent induction part is integrally coupled; And An elastic body filled between the body portion and the teeth in the oral cavity and the outside of the gum; Stent for implant including an elastic body for precision induction implantation comprising a. The method according to claim 1, An implant stent comprising an elastic body for precise induction placement comprising a first wax applied to the outside of the teeth and gums in the oral cavity before filling the elastic body. The method according to claim 1 or 2, An implant stent comprising an elastic body for precise induction placement comprising a second wax further applied to the lower end of the first wax before filling the elastic body. The method according to claim 3, Stent for implants including an elastic body for precision induction implantation, characterized in that the adhesive is applied in advance to the contact surface with respect to the body portion of the elastic body to prevent the elastic body is separated from the body portion. The method according to claim 3 Stent for the implant including an elastic body for precision induction implantation, characterized in that further forming an escape prevention unit integrally formed inwardly at a predetermined position of the lower end of the body portion. The method according to claim 3, Stent for implant including an elastic body for precision induction, characterized in that the groove (groove) of a predetermined length is further formed at a predetermined position on the inner surface of the body portion. The method according to claim 3, Stent for implants including an elastic body for precision induction, characterized in that the penetration preventing hole is formed further formed in a predetermined position on the side of the body portion excluding the occlusal surface between the body portion and the upper surface of the tooth. The method according to claim 7, The separation prevention hole is a stent for implants including an elastic body for precision induction, characterized in that one or more formed more than one. The method according to claim 1, The body portion is an implant stent comprising an elastic body for precision induction, characterized in that the fiber is made of a corrosion-resistant material to strengthen the rigidity. The method according to claim 1 or 9, The body portion is an implant stent comprising an elastic body for precision induction, characterized in that formed of carbon fiber. The method according to claim 1 or 9, The body portion is an implant stent including an elastic body for precision induction implantation, characterized in that formed of glass fibers. The method according to claim 3, Before the application of the first wax and the second wax to the application area of the teeth and gums, such as the application area of the first wax and the second wax or the like, a separator is further applied first Stents for implants including elastomers for induction placement. The method according to claim 1, An implant stent including an elastic body for precision induction, characterized in that further first applying an adhesive to the upper end of the inner surface of the body before filling the elastic body. The method according to claim 1, If the edentulous or teeth are very few, the stent for implants including an elastic body for precise guidance, characterized in that more than the stent fixing portion to the alveolar bone penetrates the outer one side of the body portion.

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