WO2015167050A1

WO2015167050A1 - Barrier membrane for implant

Info

Publication number: WO2015167050A1
Application number: PCT/KR2014/003889
Authority: WO
Inventors: 김기수; 정진영
Original assignee: 주식회사 이덴테크
Priority date: 2014-04-30
Filing date: 2014-04-30
Publication date: 2015-11-05
Also published as: CN106232051A

Abstract

Disclosed is a barrier membrane for an implant. The present invention relates to a barrier membrane for an implant comprising a body portion for covering an implant post bonded to the alveolar bone and the bone graft material added around the alveolar bone for guided bone regeneration, wherein the body portion may be made of bone components.

Description

Implant Shield

The present invention relates to a shielding film, and more particularly to a shielding film for implants.

The dental implant procedure is generally completed by dissecting the patient's gums and inserting an implant post into the gum bone (called 'alveolar bone') therein, and joining an artificial tooth (Crown) to the implant post.

In order to perform an implant, the alveolar bone in which the fixture is placed needs sufficient length and width. Bones are often absorbed or lost by other tissues. In this case, bone guidance regeneration (also called 'bone regeneration') is required. Unlike other tissues, bone has the only potential to fully recover the body's structure. However, a basic condition is required for bones to regenerate in the correct form: mechanical stability and abundant blood supply.

Biological requirements for bone induction regeneration include blood supply, stabilization, osteoblasts, limited space, space retention, and incisional wounds. Several surgical procedures are performed for this purpose. Providing proper pressure on the bone graft can increase adhesion and help bone formation.

In particular, shielding membranes are used for stabilization and limited space. The shield helps protect blood clots, prevents soft tissue cells from migrating to bone defects, and allows bone cells to settle.

Embodiments of the present invention to stably support the bone graft material to provide an implantable shield membrane that can be performed to guide bone regeneration.

In one aspect of the present invention, in the implant membrane comprising an implant post coupled to the alveolar bone and a body portion covering the bone graft material added for induction of bone regeneration around the alveolar bone, the body portion for implants formed of bone components A shielding film can be provided.

In addition, the body portion may include at least one bent portion formed to be bent to one side. In addition, the body portion formed of the bone component may be a heterologous bone or synthetic bone. In addition, the body portion may be formed by cutting the distal bone. In addition, a space is formed inside the body portion, and may be installed so that at least one of the implant post and the bone graft material is inserted through the opening of the space. In addition, the implant shield may further include a protrusion formed to protrude from the body portion. In addition, the body portion and the protrusion may be formed of different materials. In addition, the protrusion may be formed of at least one of a metal material and a plastic material. In addition, the protruding portion may be tightly coupled to a concave portion formed on the upper surface of the temporary bolt fastened to the female coupling portion or the crown coupling female screw portion formed on the upper surface of the implant post. In addition, the implant shield is formed of the bone graft material, and may further include a pad portion attached to the body portion in the form of a pad. In addition, the body portion may be formed through the through-holes. In addition, the plurality of through holes are provided, the plurality of through holes may be different from each other in diameter. In addition, the through hole may be formed only in a portion of the body portion. The body part may include a fixing member coupling part to which at least one of the alveolar bone and the bone graft material and a fixing member fixing the body part are coupled. In addition, at least one surface of the body portion may be formed as a curved surface having a radius of curvature corresponding to the teeth.

Embodiments of the present invention can be easily absorbed by the bone graft material after the bone regeneration guided by the bone component, as well as to secure the bone regeneration space by stably supporting the bone graft below.

1 is a schematic diagram showing that the dental implant device is implanted, Figure 2 is a cross-sectional view showing the cross-sectional view of the external dental implant device and internal dental implant device, Figure 3 is a shield for the implant covering the bone graft material Figure 4 is a perspective view showing an implant shield according to an embodiment of the present invention, Figure 5 is a perspective view showing a distal bone formed with the implant shield is shown in Figure 4, Figure 6 is a (a ) Is a cross-sectional view showing a portion of the implant membrane and the implant post procedure is applied, Figure 7 is a cross-sectional view showing a portion for the implant membrane and implant post procedure shown in Figure 4 (b), Figure 8 is a view of the present invention 9 is a perspective view showing a shield for an implant according to another embodiment, FIG. 9 shows a shield for an implant according to another embodiment of the present invention. 10 is a perspective view showing an implant shield according to another embodiment of the present invention, FIG. 11 is a perspective view of an implant shield according to another embodiment of the present invention, FIG. 12 is a line AA and BB of FIG. 13 is a perspective view of an implant shield according to another embodiment of the present invention, FIG. 14 is a perspective view of an implant shield according to another embodiment of the present invention, and FIG. 15 is another embodiment of the present invention. A perspective view of an implant shield membrane according to an example, and FIG. 16 is a plan view illustrating a shape of a through hole of an implant shield membrane according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the implant shield membrane according to the present invention will be described in detail. The accompanying drawings show exemplary forms of the present invention, which are provided to explain the present invention in more detail, and the technical scope of the present invention is not limited thereto.

A dental implant device generally refers to an artificial dental structure formed by implanting a fixture, which is an artificial tooth root, at a part or a whole where a tooth is lost, thereby adhering it to the alveolar bone, and fixing the dental prosthesis to the artificial tooth root. The term implant can be used broadly to encompass such a concept as a dental procedure and can be used as narrowly as a fixture. In the present specification, the implant or implant structure may be mainly used as a general artificial tooth structure.

1 is a schematic diagram showing that the dental implant mechanism is placed. 2 is a cross-sectional view showing a cross section of the implant mechanism.

1 and 2, the dental implant apparatus may include a bone tissue coupling part 10, a crown connection part 20, an abutment 30, and a crown 40. The bone tissue coupling part 10 and the crown connection part 20 will be referred to as an implant post 1.

The crown connection part 20 may have a lower end connected to the bone tissue coupling part 10 and an abutment 30 coupled to the upper end. The crown connection portion 20 is preferably formed integrally with the bone tissue coupling portion (10).

The implant has a detachable and detachable type in which the crown connection 20 is integrally formed with the abutment 30. The separate type may be divided into an internal type and an external type according to the coupling structure of the crown connection part 20 and the abutment 30. Although FIG. 1 illustrates an external type, embodiments according to the present invention can be applied to both an internal type and an external type.

The outer circumferential surface of the crown connection portion 20 may be formed to protrude so that the abutment 30 is inserted, and may be formed in various shapes. For example, the crown connection 20 may be in the form of a polygonal column. A groove may be formed in the abutment 30 so that the crown connection part 20 may be inserted, and the shape of the groove may also be formed to correspond to the outer surface shape of the crown connection part 20. Specifically, the groove in the abutment 30 may be a groove having a polygonal pillar shape when the crown connection part 20 is a polygonal pillar. At this time, the crown connection portion 20 is inserted into the abutment 30 as described above, and the outer surface of the crown connection portion 20 and the inner surface of the abutment 30 correspond to each other to the abutment on the crown connection portion 20. After combining the 30 can be prevented that the crown 40 is rotated or shifted position.

The upper surface of the crown connecting portion 20 may be formed with a female screw portion 22 (hereinafter, referred to as a 'female thread portion') for the crown coupling recessed toward the bone tissue coupling portion 10. The abutment 30 may include an insertion hole 30b into which the crown coupling bolt 50 is inserted. The crown fixing bolt 50 may firmly fix the crown 40 by engaging and fixing at least one of the abutment 30 and the crown connecting portion 20.

The crown 40 forms the appearance of an artificial tooth. Crown 40 may be referred to as a crown, an artificial tooth, or the like. At this time, the crown 40 may be installed in the crown connection portion 20 by being formed in the abutment 30 in the future.

The implant post 1 may be referred to as being divided into a body and a head. The body of the implant post 1 refers to the part that is inserted into the pubis, and the head of the implant post 1 refers to the upper part of the body and refers to the part where the crown is joined. In most cases, the head of the implant post 1 can be understood as the same portion as the crown connection 20.

1 and 2 have shown, but not limited to, a screw retaining method for fixing the crown (crown) to the implant post 1 (or fixture) or abutment 30 by screws. Although not shown in the present specification, the abutment 30 is screwed to the fixture, and a separately manufactured crown is disposed on the fixed abutment 30, with the crown and abutment interposed therebetween with dental cement. Embodiments according to the present invention may also be applied to the cement-retaining method of attaching the cement 30.

3 is a cross-sectional view showing that the implantable shielding membrane 121 covers the bone graft material 60 (also referred to as "bone graft material").

Referring to FIG. 3, the implant post (1) is inserted into the alveolar bone (B) after dissecting the gum of the patient. In case of lack of alveolar bone (B) Grafted bone regeneration (GBR) to increase the alveolar bone (B) by implanting angular artificial bone into the insufficient alveolar bone (B) or inserting a powdered artificial bone (bone graft 60) ) Can be performed. After the bone graft material 60 is filled, to ensure that the bone graft material (60) to maintain the required shape, to prevent the soft tissue intervention and to induce the bone tissue implantation membrane 121 may be used.

Implant shield film 121 as described above may be formed in a variety of shapes of a variety of materials. The above-described implant shield membrane 121 covers the implant post 1 and the bone graft material 60 on the alveolar bone B, and the absorbent shield membrane 121A and the absorbent shield membrane 121A absorbed into the bone tissue after bone induction regeneration. It may include at least one of the non-absorbent shielding film 121B coupled to be exposed to the outer surface to maintain the shape of the absorbent shielding film 121A.

As described above, the absorbent shielding film 121A is made of a biodegradable material and performs a function of a barrier for a certain period of time, and then is decomposed and absorbed into tissue. It is divided into cross-linked type and non-cross-linked type, and it is absorbed from minimum 2 weeks to maximum 54 weeks and does not require additional removal technique. Even if the absorbent shield 121A is exposed to the outside or damaged, it acts as a barrier and has a low risk of infection.

Absorbent shield (121A), which is mainly made of collagen, polylactic acid, and polyglactic acid, does not require secondary surgery, prevents the migration of epithelial cells, forms a space, and is selective. Induces cell proliferation and bone regeneration. In addition, the absorbent shielding film 121A is elastic and is used for the purpose of blocking mechanical stress applied to the wound.

For example, the absorbent shielding film 121A may be representative of collagen, and is usually made by treating collagen obtained from an animal tendon or the like. Such an absorbent shielding membrane 121A is known to be somewhat delayed in bone regeneration than the non-absorbing shielding membrane, and has less side effects than the non-absorbing shielding membrane 121B and is excellent in safety.

However, when only the absorbent shielding film 121A is used alone, the space securing ability is somewhat lower than that of the non-absorbing shielding film 121B, and the effect as a support is small.

On the other hand, the non-absorbent shielding film 121B using a metal material such as titanium (Ti) is advantageous in that it is easy to secure a period required for cell proliferation by maintaining its shape and serving as a support.

The implant shield layer 121 may be formed of a bone component in addition to being formed as described above.

Hereinafter, the implant shield layer 121 formed of the bone component will be described in detail.

4 is a perspective view showing an implant shield membrane 200 according to an embodiment of the present invention. FIG. 5 is a perspective view illustrating a distal bone in which the shielding membrane 200 for the implant shown in FIG. 4 is formed.

4 and 5, the implantation shields 200 and 200A may include

body parts

210 and 210A, which are bone components. The bone component may be any one or combination of allogeneic bone, synthetic bone, and heterologous bone.

Specifically, allogeneic bone refers to human bone. The

body parts

210 and 210A made of allogeneic bone may be made by shaving a portion of a bone of the patient or another person. For example, a portion of the alveolar bone on which the implant post (not shown) is to be mounted may be processed into a shell to form

body parts

210 and 210A.

Allogeneic bone can be used to remove the antigenicity in the form of freezing the graft or freeze-drying, de-freeze-dried, and irradiated, and it takes a long period of bone formation and a small amount of newly produced bone, It can be used at any time and does not create additional surgical sites.

The allogeneic bones include demineralized freeze dried bone allografts (DFDBA), freeze dried bone allografts (FDBA), and irradiated cancellous bone (ICB).

Heterogol means bones of animals such as cattle or pigs. It is an implant that expects bone conduction ability by dropping immune plaque through various processes, and it does not need to make additional surgical site and it can be used as much as you want, but it takes a long time to absorb and replace. What is understood as the mechanism of bone conduction rather than induction is the current flow. Examples of such heterogenous bones include Bio-Oss, ABM / P-15 and BioCera ™.

In addition, synthetic bone means artificially formed bone. Synthetic bone may be formed by mixing different materials using a heterologous bone, which is an animal bone, as part of a component, or may be formed of a material that can substitute for a bone component. These synthetic bones are not actual bones, but are artificially synthesized bones, so compared to other bone grafts, the quality is inferior and the time required for bone formation is long but inexpensive. In this case, non-porous hydroxyapatite (HA), hydroxyapatite cement, porous hydroxyapatite, beta tricalcium phosphate, polymethlymethacrylate (PMMA) and hydroxyet-hylmethacrylate (HEMA) polymer, and bioactive glass are used in the clinical bone. HA and PMMA and HEMA polymers are nonabsorbent, tricalcium phosphate and bioactive are absorbent. Types of such synthetic bones include tricalcium phosphate, hard tissue individual polymers, and bioactive vitreous cera membranes. Hereinafter, for convenience of description, the

body parts

210 and 210A will be described in detail with reference to the case where the bones are formed of dissimilar bones.

On the other hand, the thickness of the

body portion

210, 210A as described above is preferably in the form of a thin film so as to cover in close contact with the bone graft material (not shown) added to the loss of the alveolar bone (not shown).

The

body parts

210 and 210A as described above may be formed in various forms. For example, the

body parts

210 and 210A may be streamlined or curved. In addition, the

body parts

210 and 210A may be formed in a hemispherical shape, a spherical shape, an elliptic shape, or the like. The

body parts

210 and 210A may be formed in a plate shape in addition to the above cases. In this case, the

body parts

210 and 210A may be formed in various shapes in consideration of the shape of the alveolar bone and the arrangement of adjacent teeth. However, hereinafter, for convenience of description, the

body parts

210 and 210A will be described in detail with reference to a case in which a part is formed to be bent.

In detail, the body part 210 of FIG. 4A may include a cover part 211 and a first bent part 212 formed by being bent from the cover part 211. In addition, the body part 211 may be bent from the body part 211 and may include a second bent part 213 disposed to face the first bent part 212. In this case, the cover portion 211 may cover the upper portion of the bone graft material implanted with the implant post, the first bent portion 211 may cover the side portion of the bone graft material. In addition, the second bent portion 213 may extend to the normal alveolar bone.

That is, the first and second

bent portions

212 and 213 may be disposed in the vertical direction of the orthodontic direction. Specifically, any one of the first and second bent portions (212, 213) may be disposed in the lip direction around the alveolar bone, and the other one of the first and second bent portions (212, 213) to the alveolar bone It can be placed in the tongue direction as the center. At this time, the alveolar bone and the bone graft material may be disposed in the space between the first and second bent portions (212, 213), the first and second bent portions (212, 213) of the alveolar bone and the bone graft material The position shift can be prevented.

Meanwhile, the body portion 210A of FIG. 4B may include a cover portion 211A and a first bent portion 212A. In this case, the cover portion 211A and the first bent portion 212A may be the same as or similar to the cover portion 211A and the first bent portion 212A of FIG. Let's do it.

At least one of the cover portion 211A and the first bent portion 212A as described above may include a fixing member coupling portion 219A. The fixing member (not shown) in the form of a screw or a wedge alveolar bone of the implant shield 200A, in particular any bent portion (eg, the first bent portion 212A), of the implant through the fixing member coupling portion 219A. Can be bound to The fixing member coupling portion 219A may have a hole shape formed to penetrate the body portion 210A.

Looking at the method of processing the implant shield membrane (200, 200A) from the distal bone 70 as described above are as follows. Specifically, the shielding

membranes

200 and 200A for the implant may be processed into sponge tissue 74 or dense bone 76, and may be processed to include both dense bone 76 and sponge tissue 74. However, hereinafter, for convenience of description, the implantation shields 200 and 200A will be described in detail with reference to the processing of the dense bone 76.

In more detail, the

implant shielding membranes

200 and 200A may be processed and extracted in the required shape from the dense bone 76 located at the outer side of the distal bone 70. At this time, the heterogenous bone 70 is composed of a blood vessel portion 72, sponge tissue 74 and dense bone 76 from the center to the outer shell. Since the dense bone 76 area is higher than the other areas of bone density, the shielding

membranes

200 and 200A for the implant may be processed and extracted in the required shape in the dense bone 76 area.

The implant shields 200 and 200A may be processed and extracted in a form that can be used in the distal bone 70 through a CAD / CAM or 3D printer. In this case, the CAD / CAM may be designed to be cut and extracted in the form of a shielding film (200, 200A) formed to be bent at least a portion of the dense bone (76) located on the outer portion of the distal bone (70). have.

As described above, when the

implant shielding membranes

200 and 200A are processed into the heterologous bone 70, side effects of immune response and infection may occur. The surface of the implant shield (200, 200A) may be subjected to immune response removal treatment or infection blocking treatment. This treatment can be a variety of post-treatment to be harmless to humans, such as low or high temperature treatment, lyophilization, treatment with chemicals, sterilization.

On the other hand, the implant shield membrane (200, 200A) can be processed by compression molding the different bone 70 or synthetic bone components in addition to the above case. In addition, the shielding film may be processed in various forms.

The implant shields 200 and 200A may include

protrusions

220 and 220A formed on the

body portions

210 and 210A. In this case, the

protrusions

220 and 220A may be formed in the

cover parts

211 and 211A to face the implant post. The

protrusions

220 and 220A will be described in detail later.

15 is a perspective view showing an implant shield according to another embodiment of the present invention, Figure 16 is a plan view showing the shape of the through-hole of the implant shield according to an embodiment of the present invention.

Referring to FIG. 15, the implant shielding film 100 ′ includes a through hole 220 ′ instead of the protrusion 220 of the implant shielding film 100 illustrated in FIG. 4A.

The through hole 220 ′ may allow the cover screw (or healing abutment) to pass through the implant post so that the implant shields 200 and 200A may be fixed to the implant post. The through hole may be circular as shown in FIG. 15. However, the through hole is not limited thereto and may have various shapes. For example, as shown in FIG. 16, the circular hole 220'-1 and the bar-shaped slit 220'-2 may be combined. The bar-shaped slit 220'-2 may provide flexibility to allow the implant shield to pass through a portion of the post that is larger than the diameter of the circular hole 220'-1. Protrusions provided in the implant shielding film according to various embodiments to be described later may be replaced with through holes.

In addition, since the components are the same as in FIG. 4A, descriptions of the elements indicated by the same reference numerals will be omitted.

FIG. 6 is a cross-sectional view showing a portion to which an implant shielding membrane and an implant post procedure are shown in FIG.

Referring to FIG. 6, the implant post 1 may be planted in the alveolar bone B after dissecting the gum (not shown) during the implant procedure. In this case, the implant post 1 may include an internal implant post or an external implant post. However, hereinafter, the implant post 1 will be described in detail with reference to a case in which the implant post 1 includes an internal implant post.

When planting the implant post 1 in the alveolar bone (B) as described above, the alveolar bone (B) may be in a state in which a portion is recessed or missing depending on the condition of the patient. When the implant post 1 is inserted into the missing portion as described above, the holding force of the post is lowered, a problem occurs in the aesthetic prosthesis, and may adversely affect the life of the post.

In order to prevent the above problems, the bone graft material 60 may be filled in a portion where the alveolar bone B is recessed or lost. At this time, the bone graft 60 may be replaced with bone only after a certain time passes. Maintaining the shape of the bone graft material 60 by installing the implant shield 200 on the outer surface of the alveolar bone B and the bone graft material 60 until the bone graft material 60 is replaced with the alveolar bone B as described above. You can.

Specifically, when the implant post 1 is applied to the alveolar bone B, the bone tissue coupling part 10 may be inserted into the alveolar bone B. At this time, at least a portion of the crown connection portion 20 may protrude to the outside of the alveolar bone (B).

When the above procedure is completed, a predetermined time must elapse to allow the implant post 1 to settle.

On the other hand, the implant post (1) as described above may be inserted into the bone graft material (60) in the alveolar bone (B) after the alveolar bone (B) is missing. At this time, the implant graft 60 may be installed in the portion where the bone graft material 60 is inserted or shielded membrane 200 for the implant described above to prevent the shape change.

In detail, the implant shield 200 may be disposed to cover the upper surface of the implant post 1 and a part of the bone graft material 60. In this case, as described above, the cover part 211 may be disposed on the upper surface of the implant post 1, and the first bent part 212 may be disposed to contact the bone graft material 60. In addition, the second bent portion 213 may contact a portion of the alveolar bone B in a direction opposite to the first bent portion 212. In this case, the positions of the first bent portion 212 and the second bent portion 213 are not limited to the above, but may be disposed opposite to each other.

On the other hand, when the body portion 210 is installed as described above, the protrusion 220 may be inserted into the female screw portion of the crown connection portion 220. Alternatively, when the temporary bolt 150 is installed in the female screw portion, the protrusion 220 may be inserted into the recess 153 of the temporary bolt 150. However, hereinafter, the temporary bolt 150 is installed in the crown connection portion 20 for convenience of description, and the protrusion 220 will be described in detail with reference to the case where it is inserted into the recess 153.

The protrusion 220 as described above may be forcibly fitted into the recess 153. In this case, the recess 153 may have a polygonal pillar, a cylinder, a cone, or a hemispherical shape in which a cross section of the recess 153 perpendicular to the longitudinal direction of the recess 153 is a regular polygon such as a regular hexagon. In addition, the protrusion 220 may be formed in a cylinder, cone, hemisphere or polygonal polygonal shape of a regular polygon such as a regular hexagon. In this case, the shapes of the protrusion 220 and the recess 153 may be different from each other. For example, when the concave portion 153 is formed in a polygonal column shape, the cross section of the protrusion 220 may be formed in a cylinder, a cone, and a hemispherical shape. On the other hand, when the concave portion 153 is formed in a cylinder, cone, hemispherical shape, the protrusion 220 may be formed in a regular polygonal column shape. However, hereinafter, the concave portion 153 is formed in a regular pillar shape for convenience of description, and the protrusion 220 will be described in detail with reference to a case in which it is formed in a cylindrical shape.

Even when the protrusion 220 and the recess 153 are forcibly fitted as described above, a space may be formed between the outer surface of the protrusion 220 and the inner surface of the recess 153. Therefore, since the protrusions 220 and the recesses 153 have different shapes, the protrusions 220 may be smoothly removed from the recesses 153.

The diameter of either cross section of the protrusions 220 is greater than the shortest separation distance of the inner ends opposed to each other with respect to the center of the cross section of the recesses 153 so that the protrusions 220 are appropriately fitted to the recesses 153. The center of the recess 153 may be smaller than the longest separation distance between the inner ends that face each other.

On the other hand, when the protrusion 220 rotates the implant shield 200 in a state in which the protrusion 220 is sandwiched in the recess 153 of the temporary bolt 150, the implant shield 200 is circular relative to the temporary bolt 150 You can exercise. As a result, the implant shield membrane 200 may be mounted vertically to the implant post 1 after determining the position and direction of the implant shield membrane 200 during the procedure, and if there is an error in the orientation, the implant shield membrane ( The operation of rotating 200 can easily correct the error.

The protrusion 220 as described above may be formed of the same material as or similar to the body portion 210. For example, the protrusion 220 may be formed of at least one of allogeneic bone, xenograft, and synthetic bone. In this case, the protrusion 220 may be integrally formed when the body portion 210 is formed, or may be separately manufactured to be coupled to the body portion 210.

In addition, the protrusion 220 may be formed of a material different from that of the body 210. For example, the protrusion 220 may be formed of a metal material such as titanium or a plastic material such as resin or engineering plastic. The protrusion may be formed by mixing a metal and a plastic material. In this case, the protrusion 220 may be manufactured separately from the body 210 and installed on the body 210. In more detail, the protrusion 220 may be formed of a metal material or a plastic material, and then a part of the protrusion 220 may be inserted into and coupled to the body 210 or may be fixed to the body 210 through an adhesive material. Hereinafter, the protrusion 220 will be described in detail with reference to a case in which the protrusion 220 is integrally formed with the body 210.

As time elapses after the protrusion 220 is installed in the recess 153 of the temporary bolt 150, the bone graft material 60 may be completely bonded to the alveolar bone B.

Therefore, the implant shield 200 may help to securely secure the bone graft (60) to the alveolar bone (B) by maintaining the shape of the bone graft (60). In addition, the implant shield membrane 200 may be formed of a bone component to help the bone graft material 60 to rest in the alveolar bone B in a short time.

FIG. 7 is a cross-sectional view showing a portion to which the implant shielding membrane 200A and the implant post 1 procedure shown in FIG. 4B are applied.

Referring to FIG. 7, the shape of the bone graft material 60 may be maintained using the implant shield 200A during the implant procedure. In this case, the implant shield 200A may support the bone graft material 60 by being installed to cover a portion of the implant post 1, the bone graft material B, and the alveolar bone 60 as described above with reference to FIG. 6. At this time, the protrusion 220A may be installed to be inserted into the recess 153 of the temporary bolt 150, the cover portion 211A may be installed to cover the upper surface of the implant post (1). In addition, the first bent portion 212A may be installed to cover the portion of the bone graft material (60). When the implant shield 200A is installed as described above, the implant shield 200A may move according to an external impact or flow of the bone implant 60 inside.

In order to prevent the movement of the implant shield 200A, the fixing member 300 may be coupled to the fixing member coupling part 219A. Specifically, after the body portion 210A is disposed as described above, when the fixing member 300 is coupled to the fixing member coupling portion 219A, the fixing member 300 penetrates through the body portion 210A to allow the bone graft material 60 to form. It can be inserted into the part. That is, the fixing member 300 may prevent the bone graft material 60 from moving to the first bent portion 212A by completely contacting the first bent portion 212A to the bone graft material 60. At this time, the fixing member 300 may be formed in the form of bolts, screws, pins and the like.

Therefore, the implant shield 200A may help the bone graft 60 to settle in a short time. In addition, the implant shield membrane 200A may maintain the shape of the bone graft material 60 by fixing the body portion 210A to at least one of the alveolar bone B and the bone graft material 60 through the fixing member 300.

8 is a perspective view showing an implant shield (200C) according to another embodiment of the present invention.

Referring to FIG. 8, the shielding film 200C for the implant may include a body portion 210C formed in a hemispherical shape. At this time, a space may be formed inside the body portion 210C. At least one of an implant post (not shown) and a bone graft material (not shown) may be disposed and covered in an internal space of the body portion 210C as described above. In addition, the body portion 210C may be formed of a bone component. In this case, since the bone component may be formed in the same or similar to that described above, a detailed description thereof will be omitted.

As described above, the implant shield layer 200C may include a protrusion 220C formed in an internal space of the body portion 210C. In this case, as described above, the protrusion 220C may prevent the position of the implant shielding film 200C from being deviated during the implant procedure. In this case, the protrusion 220C may be selectively formed or not formed in the body portion 210C, and hereinafter, the protrusion 220C is formed at the central portion inside the body portion 210C for convenience of description. This will be described in detail.

Meanwhile, the implant shield membrane 200C as described above may be installed to cover at least one of the implant post and the bone graft material after the bone graft material. In this case, at least one of the implant post and the bone graft material may be inserted into the body portion 210C to reduce the shape change of the bone graft material until hardening of the bone graft material is completed.

In addition, when the body portion 210C is installed as described above, the protrusion 220C may be coupled to the implant post to fix the body portion 210C. In particular, the method and structure in which the protrusion 220C is coupled to the implant post has been described in detail above, and thus a detailed description thereof will be omitted.

Therefore, the implant shielding membrane 200C may be processed in various forms to assist in curing the bone graft material. In addition, the implant shield (220C) is formed of a bone component can minimize the side effects caused during the procedure as well as shorten the curing time of the bone graft material.

9 is a perspective view illustrating a shield 200D for an implant according to another embodiment of the present invention.

Referring to FIG. 9, the shielding film 200D for the implant may include a space formed therein, and may include a body portion 210D having an opening 218D to open the space. At this time, the body portion 210D may be formed of a bone component, and may be formed in various forms. For example, the body portion 210D may be formed in a polygonal column shape, and may be formed in a semi-cylindrical shape, a cone shape, a wedge shape, or the like. However, hereinafter, the body portion 210D will be described in detail with reference to a case where the body portion 210D is formed in a square pillar shape for convenience of description.

The body portion 210D as described above may include a cover portion 211D and a bent portion 212D. In this case, the bent portion 212D may be bent and connected to the cover portion 211D. In addition, the bent portion 212D may be connected to the cover portion 211D to completely cover the outer surface of the cover portion 211D.

The body portion 210D may be formed as described above, and may include an opening 218D on a surface of the body portion 210D that faces the cover portion 211D. In particular, the body portion 210D may have a space formed between the cover portion 211D and the bent portion 212D so that at least one of an implant post (not shown) and a bone graft material (not shown) may be inserted therein.

The implant shield 200D may include a protrusion 220D protruding from the body portion 210D. The protrusion 220D may be formed on the cover 211D. In this case, since the protrusion 220D is the same as or similar to that described above, a detailed description thereof will be omitted.

After the implant post is installed, the implant shield membrane 200D formed as described above may be installed on the alveolar bone during the procedure. In this case, at least one implant post may be inserted into a space inside the body 210D.

When the body portion 210D is installed as described above, a portion of the bent portion 212D supports the alveolar bone and the bone graft material, and another portion of the bent portion 212D is inserted into at least one of the plaque and bone graft material. Can be installed as possible. In this case, the protrusion 220D may be installed to be inserted into the recess (not shown) of the temporary bolt (not shown) to support the body portion 210D as described above.

Implant shielding film 200D according to the present embodiment does not need to be removed separately during implantation, so no additional secondary surgery is required.

10 is a perspective view showing an implant shield (200E) according to another embodiment of the present invention.

Referring to FIG. 10, the implant shield film 200E may include a body portion 210E having a space formed therein. In this case, the body portion 210E may be formed of a bone component, and may include a cover portion 211E and a bent portion 212E formed by bending from the cover portion 211E. In particular, the bent portion 212E may be disposed to surround the outer surface of the cover portion 211E, and the cover portion 211E and the bent portion 212E may form a space therein.

Cover portion 211E and the bent portion 212E formed as described above may be formed in a curved surface having a radius of curvature to correspond to the teeth. At this time, the radius of curvature of the cover portion 211E and the radius of curvature of the bent portion 212E may be formed to be constant, it may be formed to be provided in plurality. However, hereinafter, the radius of curvature of the cover portion 211E and the radius of curvature of the bent portion 212E will be described in detail with reference to a case where the shape is constant. In particular, the cover portion 211E and the bent portion 212E will be described in detail with a focus on the case each formed in a fan shape.

The body portion 210E may include a coupling portion 290E coupled to an abutment (not shown) coupled to an implant post (not shown). In this case, the coupling part 290E may be formed in a hole or groove shape, and in particular, the coupling part 290E may be formed to penetrate the cover part 211E. Hereinafter, for convenience of description, the coupling part 290E will be described in detail with reference to a case of a hole shape passing through the cover part 211E.

On the other hand, the implant shield film 200E formed as described above may be suitable when simultaneously performing a plurality of implants. In addition, the implant shield (200E) can be used during the implantation procedure of the tooth extracted entirely. Specifically, at least one implant post may be disposed in the body portion 210E.

First, the implanted shield film 200E formed as described above may be manufactured in consideration of the oral structure of the patient, that is, the shape and arrangement of the alveolar bone (not shown). In particular, after installing the implant post, a bone graft material (not shown) is disposed on the alveolar bone, and the body portion 210E of the shield 200E for the implant may be disposed to surround at least one of the alveolar bone and the bone graft material.

At this time, the coupling portion 290E formed on the cover portion 211E may be formed in consideration of the position of the implant post to be planted in advance, and may be formed to correspond to the crown coupling portion (not shown).

When the implant shield membrane 200E is disposed as described above, after the installation of the implant shield membrane 200E, a temporary bolt (not shown) is inserted into the coupling portion to form a female screw portion (not shown) and an insertion groove formed in the crown coupling portion. (Not shown) can be shielded.

Therefore, the implant post 200E may reduce the shape change of the bone graft by supporting the bone graft through the body portion 210E. In addition, since the implant post 200E can predict the shape of the bone graft in advance, the operator can easily predict the amount of bone formation.

11 is a perspective view showing an implant shield (200F) according to another embodiment of the present invention. 12 is a cross-sectional view taken along line A-A and line B-B of FIG.

Referring to FIGS. 11 and 12, the implant shield film 200F may include a body portion 210F formed of a bone component and a protrusion 220F formed on the body portion 210F. At this time, the body portion 210F may include a cover portion 211F and a bent portion 212F formed by being bent from the cover portion 211F.

The cover portion 211F and the bent portion 212F as described above may be connected to each other to form a space therein. In particular, at least one of the alveolar bone (not shown) and bone graft material (not shown) may be inserted into the internal space.

The cover portion 211F and the bend portion 212F may each be formed as a curved surface having a radius of curvature. At this time, the cover portion 211F and the bent portion 212 may be formed in a curved surface in the longitudinal direction, respectively. In addition, the cover portion 211F may be formed as a curved surface in the height direction of the bent portion 212.

The radius of curvature of the cover portion 211F and the radius of curvature of the bent portion 212F in the longitudinal direction as described above may be constant, and may be different from each other. In particular, the cover portion 211F and the bent portion 212F may be formed in a curved surface corresponding to the teeth.

The cross section of the body portion 210F as described above may be variously formed. For example, the cross section of the body portion 210F may be an arch of a 'U' shape, such as 'c' or horseshoe. At this time, the cross-sectional shape of the body portion 210F is not limited to the above, and may be variously formed according to the shape of the teeth or the alveolar bone, the arrangement form of the bone graft material, the overall shape due to the bone graft material, and the like. (a) and (b))

The cover portion 211F may be provided with a coupling portion 290F into which the fastening mechanism is inserted from the outside. In this case, the coupling part 290F may be formed in the cover part 211F.

Coupling portion 290F may be formed the same as or similar to that described above. In this case, the coupling part 290F may be formed to penetrate the cover part 211F, and may be formed to penetrate the cover part 211F and the protrusion part 212F. At this time, the coupling portion 290F may be fixed by inserting an abutment (not shown), a crown coupling bolt (not shown), or the like coupled to a temporary bolt (not shown) or an implant post (not shown). However, hereinafter, for convenience of description, the coupling part 290F will be described in detail with reference to the case where the cover part 211F is formed to penetrate only. When the coupling portion 290F is formed as described above, the coupling portion 290F and the protrusion 220F may be disposed to alternate with each other.

On the other hand, the implant shield membrane (200F) formed as described above can maintain the shape of the bone graft material when the bone graft material is installed. In this case, the shield 200F for the implant may be fixed by coupling the protrusion 220F to the implant post.

When the hardening of the bone graft is completed, the abutment bolt may be inserted into the coupling part 290F to fix the abutment. At this time, the fixing method of the abutment is not limited to the above, it is also possible to fix the crown coupling bolt through the coupling portion 290F to the female screw portion of the crown connection portion.

Therefore, since the implant shielding membrane 200F is formed of a bone component, the damage portion of the tooth is very small, and thus the bone formation site is relatively small. Bar is manufactured and used directly in the procedure, there is an advantage that the absorption and shielding properties and retention properties for the bone generating part is improved.

13 is a perspective view of an implant shield (200G) according to another embodiment of the present invention.

Referring to FIG. 13, the shielding film 200G for the implant may include a body portion 210G and a protrusion 220G. The body portion 210G may include a cover portion 211G and a bent portion (not shown). In this case, the body portion 210G may be formed the same as or similar to that shown in FIGS. 4 to 10. In addition, the body portion 210G is not limited to the above, and may include any shape capable of maintaining the shape of a bone graft material (not shown). However, in the following description, the body portion 210G will be described in detail with reference to a case in which the body portion 210G is formed the same as or similar to that shown in FIG.

In particular, the body portion 210G as described above may include a cover portion 211G, a first bent portion 212G, and a second bent portion 213G. In this case, the first bent part 212G and the second bent part 213G may be formed to extend from the cover part 211G and be bent from the cover part 211G.

Meanwhile, the implant shielding film 200G may include a pad part 240G installed in the body part 210G. In this case, the pad part 240G may be installed on at least one of the cover part 211G, the first bent part 212G, and the second bent part 213G. In particular, the pad portion 240G may be installed in the body portion 210G so that a portion of the alveolar bone (not shown) is disposed.

The pad part 240G may be formed in various shapes. Specifically, the pad portion 240G may be formed to correspond to the shape of the portion where the alveolar bone is removed. For example, the pad portion 240G may have a rectangular pillar shape, and may be variously formed, such as a cone or an elliptical pad.

The pad portion 240G as described above may be manufactured by freeze-drying the bone graft material on the body portion 210G. In particular, the pad portion 240G may be applied to one surface of the body portion 210G in a predetermined thickness and area. At this time, the thickness and area of the pad portion 240G may be determined according to the degree of deficiency of the alveolar bone, deformation of the alveolar bone due to extraction.

Therefore, the implant shield (200G) can increase the ease of use by installing the bone graft material to the body portion 210G in a pad form. In addition, the implant shield 200G may be formed of a bone component to reinforce the alveolar bone after the procedure, and to prevent the shape of the bone graft from varying when the bone graft is cured.

14 is a perspective view of an implant shield (200H) according to another embodiment of the present invention.

Referring to FIG. 14, the implantation shield 200H may include a body 210H and a protrusion 220H. The body portion 210H may include a cover portion 211H and a bent portion (not shown). In this case, the body portion 210H may be formed the same as or similar to that shown in FIGS. 4 to 10. In addition, the body portion 210H is not limited to the above, and may include any shape capable of maintaining the shape of the bone graft material (not shown). However, hereinafter, the body portion 210H will be described in detail with reference to a case in which the body portion 210H is formed the same as or similar to that shown in FIG.

In particular, the body portion 210H as described above may include a cover portion 211H, a first bent portion 212H, and a second bent portion 213H. In this case, the first bent part 212H and the second bent part 213H may be formed to extend from the cover part 211H and be bent from the cover part 211H.

On the other hand, the body portion 210H as described above may be formed through the hole 280H to penetrate the body portion 210H. In this case, the through hole 280H may be formed only in a partial region of the body portion 210H. For example, the through hole 280H may be formed only in the cover portion 211H, and may be formed only in the first bent portion 212H or the second bent portion 213H. In addition, the through hole 280H may be formed only in the cover portion 211H and the first bent portion 212H, or may be formed only in a partial region of the second bent portion 213H. However, hereinafter, for convenience of description, the through hole 280H will be described in detail with reference to a case where only the first bent portion 212H is formed.

A plurality of through holes 280H as described above may be provided. In this case, the diameters of the plurality of through holes 280H may be the same or different from each other. For example, the diameter of the through hole 280H formed at the center of the first bent portion 211H among the plurality of through holes 280H may be larger than the diameter of the through hole 280H of the other portion. In addition, the diameter of the through hole 280H may be formed to gradually decrease toward the outside of the first bent portion 212H around the center portion of the first bent portion 280H.

The diameter of the through hole 280H may be smaller than the center portion of the bent portion 280H. In addition, the most dense portion of the diameter bone graft material (not shown) of the through hole 280H may be formed larger than other portions. However, hereinafter, the diameter of the plurality of through holes 280H will be described in detail with reference to the same case for convenience of description.

The body portion 210H as described above is partially passed through the blood or bone growth factors, but the amount may be very small. In this case, the plurality of through holes 280H may serve as a passage for supplying blood or bone growth factors from the gingiva (not shown) to the bone graft material (not shown) inside the implantation shield 200H. In particular, the bone graft material may be smoothly regenerated in the alveolar bone (not shown) due to blood or bone growth factors, which are moved through the plurality of through holes 280H.

Therefore, the implant shield (200H) is formed of a bone component can not only reinforce the alveolar bone after the procedure, but also prevent the shape of the bone graft material from varying when the bone graft material is cured.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims

In the implant membrane comprising an implant post coupled to the alveolar bone and a body portion covering the bone graft material added for induction of bone regeneration around the alveolar bone,

The body portion is an implant shield membrane formed of a bone component.
The method of claim 1,

And at least one bent portion formed to be bent to one side of the body portion.
The method of claim 1,

The body portion formed of the bone component is a distal bone or synthetic bone shield for implants.
The method of claim 3, wherein

The body portion is an implant shielding film formed by cutting the distal bone.
The method of claim 1,

The body portion has a space formed therein, the implant shield is installed so that at least one of the implant post and the bone graft material is inserted through the opening of the space.
The method of claim 1,

The shielding membrane for an implant further comprising a protrusion formed to protrude from the body portion.
The method of claim 6,

The protruding portion is an implant shielding film coupled to the concave portion formed on the upper surface of the temporary bolt fastened to the female screw portion or the crown coupling female screw portion formed on the upper surface of the implant post.
The method of claim 1,

A shielding membrane for an implant further comprising a pad portion formed of the bone graft material and attached to the body portion in a pad form.
The method of claim 1,

Implant shielding film is formed through the body portion to penetrate the surface.
The method of claim 9,

The through hole is provided with a plurality,

The plurality of through-holes are shielding membrane for implants different diameters.
The method of claim 9,

The through-holes are shielding membrane for the implant is formed only in a portion of the body portion.
The method of claim 1,

The body portion, a shield member for an implant comprising a; fixing member coupling portion is coupled to the fixing member for fixing the body portion and at least one of the alveolar bone and the bone graft.
The method of claim 1,

At least one surface of the body portion implant shielding film formed of a curved surface having a radius of curvature corresponding to the teeth.