KR100653850B1 - Augmentation plate for stabilizing dental implant fixtures and bone generation - Google Patents

Abstract

Provided is an augmentation plate that ensures a space for generation of a severely damaged alveolar bone, stabilizes dental implant fixtures in a weak alveolar bone, and is easy to remove. The augmentation plate is constituted by a body(10) and plural arms(12) extended from a longitudinal side of the body(10). The body(10) has four through holes(14) in the longitudinal direction, and two of the through holes(14) are offset. Two of the through holes(14) correspond to a premolar tooth portion and the other two through holes(14) correspond to a molar tooth portion. The arm(12) consists of a long arm portion(18a) and a long arm portion(18b). The arm portions have through holes(19a,19b) which is formed using micro-screws to secure dental implant fixtures in an alveolar bone.

Description

AUGMENTATION PLATE FOR STABILIZING DENTAL IMPLANT FIXTURES AND BONE GENERATION} to provide space for regeneration of fragile alveolar bone and to stabilize fixation of implant fixtures

1 is a front view showing a plate according to a first embodiment of the present invention

2 is a front view of a plate according to a first embodiment of the present invention, in which the number of arm portions extending from the side surface of the body portion is different;

Figure 3 is a front view showing a plate according to a second embodiment of the present invention

4 is a front view showing a plate according to a third embodiment of the present invention.

5 is a front view showing a plate according to a fourth embodiment of the present invention.

6 is a front view showing a plate according to a fifth embodiment of the present invention.

7 is a front view showing a plate according to a sixth embodiment of the present invention.

8 is a front view showing a plate according to a seventh embodiment of the present invention.

9a to 9i are diagrams showing stepwise installation states of the plate according to the present invention.

10 is a view showing a dental implant according to the prior art

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

10 Body part 12 Arm part

14 Through Hole 16 Connecting Piece

The present invention relates to a plate for temporarily supporting an implant fixture in order to fix the implant fixture to a fragile alveolar bone. More specifically, the alveolar bone area to be implanted is severely damaged, thereby providing a space for bone regeneration to allow for implantation of the alveolar bone, which is insufficient in quality and quantity, and at the same time, the implant fixture is temporarily fixed for a period of time to recover the alveolar bone. It relates to a titanium plate for supporting. In particular, the plate according to the present invention to secure a space for bone regeneration to achieve a good bone coupling between the implant fixture and the alveolar bone, to obtain the effect of increasing the amount of bone, and to ensure a firm coupling of the regenerated bone with the implant support Once done, it is intended to be removed.

The dental implant procedure consists of surgically installing the implant fixture in the alveolar bone and connecting the upper prosthesis to the implant fixture when bone bonding is made between the implant fixture and the alveolar bone over time. This type of implant procedure depends on how good bone bonding is achieved between the implant fixture and the alveolar bone. Therefore, in order to achieve good bone coupling between the implant fixture and the alveolar bone, there should be no fluctuations of the implant fixture while the implant fixture is placed in the alveolar bone. . In order to secure the stability of the implant fixture placed in the alveolar bone above all, the amount of bone should be sufficient.

However, in actual clinical trials, many patients lack quantitatively and qualitatively, and various bone augmentation procedures have been attempted to restore alveolar bone. One of the bone augmentation procedures involves adding bone fragments to the alveolar bone to increase the amount of bone and improve bone quality to restore bone to support the implant fixture.

On the other hand, the name of the invention is "dental implant and its implantation method," US Patent No. 5,930, published on October 1, 1991, as shown in Figure 10, fixed to the alveolar bone using a plurality of screws Dental implants have been disclosed (hereinafter referred to as Rodde Implants). Referring to FIG. 10, the rode implant has a post 80 upwardly formed at a center hub, a branch 82 is formed radially around the hub, and a hole 84 is formed at an end of the branch 82. Is formed.

The rode implant as described above is to be installed by fixing the branch 82 to the alveolar bone with a screw 86, there is a problem that is difficult to perform in patients with severely damaged alveolar bone. In addition, the size of the implant itself is permanently fixed in the oral cavity and the structure is complex and difficult to apply realistically, the patient feels a lot of foreign body after installation, there is a high possibility of unwanted exposure into the oral cavity. In particular, when the external force acts on the implant when food is ingested after the oral mucosa is closed, the branch 82 is moved and friction with the oral mucosa is very likely to cause inflammation.

The present invention is the result of a study for firmly performing a conventional implant that does not have a branch to be fixed to the alveolar bone, such as a rode implant in a patient with a weak alveolar bone. In order to fix the conventional implant firmly on the alveolar bone, bone regeneration is performed. However, some patients have alveolar bones that are fragile enough to be unable to perform bone regeneration, and therefore, conventional implant procedures may not be possible.

It is an object of the present invention to provide a plate for temporarily supporting an implant fixture in place of the alveolar bone so as to simultaneously perform bone augmentation and implant procedures for severely damaged and fragile alveolar bone. The inventor defines the temporary support plate for performing the bone augmentation procedure and the implant procedure simultaneously as an augmentation plate. The augmentation plate provides space for bone regeneration for the alveolar bone that has been severely absorbed, and the plate can be easily removed after bone augmentation and implant-bone engagement is complete.

Therefore, the plate according to the present invention has a different purpose from the rode implant described above. The Rhode invention relates to the implant itself which is permanently fixed in the oral cavity. On the other hand, the present invention can provide bone regeneration space while temporarily supporting the implant placed in the alveolar bone so that bone augmentation (regeneration) and traditional implant procedures can be simultaneously performed to patients with quantitatively and qualitatively lacking alveolar bone. Relates to a plate. In addition, the plate according to the present invention is to be removed after the implant is firmly fixed to the alveolar bone by bone augmentation, so that it does not cause inflammation due to friction, unwanted oral exposure, foreign body feeling. In addition, the support plate according to the present invention is to be fixed to the jaw bone as well as the alveolar bone.

The support plate for fixing the implant fixture to the fragile alveolar bone according to the present invention has a plate shape, a body portion formed with a plurality of through holes in a row, and a plurality of arm portions extending from both sides of the long length of the body portion, The end of each arm portion is formed with a through hole for fixing to the alveolar bone or jaw bone using a micro screw, the body portion is located between the cover screw fastened through the through hole and the implant fixture for fixing the above It is characterized in that it is fixed to the implant fixture.

The plate is made of titanium, and is fixed to the jaw or alveolar bone by a micro screw, and is coupled to the implant fixture by a cover screw, so that the implant fixture is not shaken to provide good bone bonding between the implant fixture and the alveolar bone. Since the implant fixture can be accurately placed in the desired position with respect to the alveolar bone, it is resistant to alveolar bone resorption and is advantageous for the maintenance of the implant and the management of plaque. In addition, since the plate can be cut and fixed on the bone surface using a micro screw as necessary, implantation can be performed even in patients with severe damage to the alveolar bone and vulnerable to the alveolar bone. In addition, the plate can secure a space for bone regeneration in the alveolar bone, so that bone graft and implant procedure can be performed at the same time, it is possible to drastically shorten the number of surgery and the entire implant procedure. In addition, since the implant fixture can be removed from the oral cavity when bone bonding is completed, it prevents inflammation occurring in the mucous membrane inside the oral cavity and improves aesthetics.

In addition, the plate according to the present invention is characterized in that at least one through hole of the plurality of through holes of the body portion has a long long hole shape. The long hole-shaped through hole can adjust the distance between the implants so that the implant fixture can be placed at a desired position, and the front-rear relation between the implants can be adjusted.

In addition, the plate according to the present invention is characterized in that at least one of the through holes of the plurality of through holes of the body portion is arranged to be offset at regular intervals in the longitudinal direction. The through-holes of the body part correspond to the molar array of natural teeth between the premolar parts and the molar parts, so that the implant fixture can be installed at the correct position. Here, the interval at which the through-holes of the body portion are offset is preferably 2 mm or less in consideration of the anatomical oral structure of the adult.

In addition, the arm portion according to the present invention is characterized in that the arm portion extending from one side is longer than the arm portion extending from the other side. Therefore, the arm part extending from one side of the long length is extended to the buccal side, and the arm part extending from the other side of the short length can be extended to the palatal side, so that it can be securely fixed in accordance with the anatomical structure.

In addition, the plate according to the present invention is characterized in that the arm portion extending from the middle of the arm portion extending from one side is longer than the arm portion extending from both sides. Therefore, the arm portion extending from the middle of one side can be fixed to the plate of the maxillary bone by the micro screw, so that the plate can be installed more firmly.

In addition, the plate according to the present invention is a plate for fixing the implant fixture to the damaged alveolar bone for a period of time, and has a plate-shaped body portion formed with a through hole, and a plurality of arm portions extending from the side of the body portion, The end of each arm portion is formed with a through hole for fixing to the alveolar bone or jaw bone using a micro screw, the body portion is located between the cover screw fastened through the through hole and the implant fixture for fixing Characterized in that it is fixed to the implant fixture. The plate can be fixed to the bone surface of the patient even if the alveolar bone is severely missing, the implant fixture can be installed in the correct position with respect to the alveolar bone.

Hereinafter, with reference to the accompanying drawings embodiments of the plate for fixing the implant fixture to the damaged alveolar bone according to the present invention as follows.

1 is a front view showing a plate according to a first embodiment of the present invention.

The plate according to the present embodiment includes a body portion 10 and a plurality of arm portions 12 extending from the long side of the body portion 10.

The body portion 10 has a plate shape, and four through holes 14 are formed in a line in the longitudinal direction, and two through holes 14 of the four through holes 14 are offset. The cross section of the through hole 14 is circular, and a connecting piece 16 is formed between the through holes 14. In addition, the through holes 14 are formed to be spaced apart so that the through holes 14 are located on the missing teeth when the plate is installed. Here, two through holes 14 out of four through holes 14 correspond to premolar parts and two through holes 14 correspond to molar parts.

The arm portion 12 extends from the side of the connecting piece 16 between the through holes 14 of the body portion 10. The arm portion 12 is composed of three short arm portions 18a extending to the palatal side and three long arm portions 18b extending to the buccal side when the plate is installed. The long arm portion 18a has a through hole 19a formed therein for the micro screw to penetrate the end, and the short arm portion 18b penetrates the micro screw in the end and the middle. Holes 19b are formed respectively.

2 is a front view showing a plate in which the number of arm portions 12 extending from the side surface of the body portion 10 differs from the plate according to the first embodiment of the present invention. Four through-holes 14 are formed in a row, the cross-section of the through-holes 14 is circular, and a connecting piece 16 is formed between the through-holes 14. The arm portion 12 is composed of five short arm portions 18a extending to the palatal side and five long arm portions 18b extending to the buccal side when the plate is installed. The long arm portion 18a has a through hole 19a formed therein for the micro screw to penetrate the end, and the short arm portion 18b penetrates the micro screw in the end and the middle. Holes 19b are formed respectively.

3 is a cross-sectional view showing a plate according to a second embodiment of the present invention.

In this embodiment, the plate includes a body portion 20 and a plurality of arm portions 22 extending from the long side of the body portion 20.

The body part 20 is plate-shaped, and four through-holes 24a and 24b are formed in a line in the longitudinal direction. The cross section of the through holes 24a and 24b is circular, and a connecting piece 26 is formed between the through holes 24a and 24b. In addition, the through holes 24a and 24b are formed so as to be spaced apart so that the through holes 24a and 24b are located on the missing tooth when the plate is installed. Here, two through holes 24a among the four through holes 24a and 24b correspond to premolar parts, and the remaining two through holes 24b correspond to molar parts, through holes 24a and molar parts corresponding to premolar parts. Corresponding to the through hole 24b is formed to be offset by 1mm to 2mm to match the anatomical structure.

The arm portion 22 extends vertically at the side of the connecting piece 26 between the through holes 24a and 24b. The arm portion 22 is composed of three short arm portions 28a extending to the palatal side and three long arm portions 28b and 28c extending to the buccal side when the plate is installed. The short arm portion 28a has a through hole 29a formed at the end thereof to allow a micro screw to pass therethrough. Further, the long arm portions 28b and 28c are formed with through holes 29b and 29c, respectively, so that the micro screw can penetrate through the ends and the middle thereof. The arm portion 28c extending from the middle of the long arm portions 28b and 28c extends from both sides so that the micro screw passing through the through hole 29c formed at the end portion can be fixed to the bone of the maxillary bone. It is formed longer than the arm portion 28b.

4 is a perspective view showing a plate according to a third embodiment of the present invention.

In the present embodiment, the plate includes a body portion 30 and a plurality of arm portions 32 extending from the long side of the body portion 30.

The body portion 30 has a plate shape, and two through holes 34a and 34b are formed in the longitudinal direction. The through holes 34a and 34b are long holes, and a connecting piece 36 is formed between the through holes 34a and 34b. In addition, the through holes 34a and 34b are formed so as to be spaced apart so that the through holes 34a and 34b are located on the missing tooth when the plate is installed. Here, the through holes 34a and 34b are offset so as to match the shapes of the premolar and molar parts. The offset spacing of the through holes 34a and 34b is 1 mm to 2 mm when anatomically considering the adult tooth structure.

The arm portion 32 extends vertically at the sides of each of the connecting pieces 36 and the through holes 34a and 34b formed between the through holes 34a and 34b. The arm portion 32 is composed of three short arm portions 38a extending to the palatal side and three long arm portions 38b and 38c extending to the buccal side when the plate is installed on the jawbone. The short arm portion 38a extending to the palatal side has a through hole 39a formed at the end to allow the micro screw to penetrate, and the three long arm portions 38b and 38c extending to the narrow side. Through holes 39b and 39c are formed in the end and the middle so that the micro screw can penetrate. The middle arm portion 39c extending from the connecting piece 36 among the three long arm portions 39b and 39c extending to the buccal side is formed of the maxilla by the micro screw passing through the through hole 39c formed at the end. It is formed longer than the arm portion (39b) extending from both sides so that it can be fastened to the tibial projections.

5 is a perspective view showing a plate according to a fourth embodiment of the present invention.

In the present embodiment, the plate includes a body portion 40 and a plurality of arm portions 42 extending from the long side of the body portion 40.

The body portion 40 has a plate shape, and two through holes 44 are formed in the longitudinal direction. The through hole 44 is formed in a long hole shape. In addition, the through holes 44 are formed to be spaced apart so that the through holes 44 are located on the missing teeth when the plate is installed.

The arm portions 42 vertically extend from the side surfaces of the through holes 44, and a connecting piece 46 is formed between the through holes 44. The arm portion 42 is composed of three short arm portions 48a extending to the palatal side and three long arm portions 48b extending to the buccal side when the plate is installed. The short arm portion 48a has a through hole 49a formed at an end thereof to allow the micro screw to penetrate, and the long arm portion 48b is formed so that the micro screw can penetrate at the end and the middle thereof. Through-holes 49b are formed, respectively.

6 is a perspective view showing a plate according to a fifth embodiment of the present invention.

In the present embodiment, the plate includes a body portion 50 and a plurality of arm portions 52 extending from the long side of the body portion 50.

The body part 50 is plate-shaped, and through-holes 54a and 54b are formed in the longitudinal direction. The through holes 54a and 54b are formed of a long hole-shaped through hole 54a disposed in the middle and circular through holes 54b located on both sides. In addition, the through holes 54a and 54b are formed so as to be spaced apart so that the through holes 54a and 54b are located on the missing tooth when the plate is installed.

The arm portion 52 extends perpendicularly to the side surfaces of the connecting piece 56 and the through hole 54b formed between the through holes 54a and 54b, respectively. The arm portion 52 is composed of five short arm portions 58a extending to the palatal side and three long arm portions 58b extending to the buccal side when the plate is installed. The short arm portion 58a has a through hole 59a formed at an end portion thereof to allow the micro screw to penetrate. The long arm portion 58b has an end portion formed so that the micro screw can penetrate the middle portion. Through-holes 59b are formed respectively.

7 is a perspective view showing a plate according to a sixth embodiment of the present invention.

The plate according to the present embodiment includes a body portion 60 having through holes formed therein, and a plurality of arm portions 62 extending from side surfaces of the body portion 60.

The body part 60 is plate-shaped, and the through-hole 64 is formed in the center. The through hole 64 is circular. The arm portion 62 extends in a direction opposite from the side of the body portion 60, and is composed of a short arm portion 68a extending to the palatal side during installation of the plate and a long arm portion 68b extending to the buccal side. . The short arm portion 68a has a through hole 69a formed at an end thereof to allow the micro screw to penetrate, and the long arm portion 68b can penetrate the end and the middle thereof. Through-holes 69b are formed, respectively.

8 is a perspective view showing a plate according to a seventh embodiment of the present invention.

The plate according to the present embodiment includes a body portion 70 having a through hole, and a plurality of arm portions 72 extending from the side of the body portion 70, respectively.

The body part 70 is plate-shaped, and the circular through-hole 74 is formed in the center. Protruding pieces 76 are formed on both side surfaces of the through hole. The arm portions 72 respectively extend in opposite directions at the ends of the protruding pieces 76 on both sides of the body portion 70, and have a short arm portion 78a extending to the palatal side when the plate is installed, and a long length extending to the buccal side. It consists of the arm part 78b. The short arm portion 78a has a through hole 79a formed at an end thereof to allow the micro screw to penetrate, and the long arm portion 78b is formed so that the micro screw can penetrate at the end and the middle thereof. Through-holes 79b are formed, respectively.

Hereinafter, a method of using the plate according to the present invention will be described with reference to the accompanying drawings.

9A to 9I are state diagrams showing stepwise installation states of the plate according to the present invention.

FIG. 9A is a diagram in which a stipple of an alveolar bone in which a severe alveolar bone defect has occurred is shown, and a state of the alveolar bone is damaged. In the plate according to the present invention, it is possible to install an implant even when the alveolar bone is damaged as shown in FIG. 9A.

First, the oral mucosa is dissected to the problem site, and the bone is exposed to the area requiring bone augmentation and implant installation. When the bone is exposed, the plate is placed on the missing alveolar region, and the micro screw (s) is inserted into the small hole of the plate arm portion 18b as shown in FIG. 9b and then fastened to the alveolar bone to fix the plate. .

Next, the implant fixture f is positioned in the jaw while passing through the through hole 14 of the body portion of the plate, as shown in FIG. 9C.

Next, the cover screw (c) is coupled to the implant fixture (f) while passing through the through hole 14 of the body portion of the plate as shown in Figure 9d. At this time, the head portion of the cover screw (c) is in close contact with the surface of the plate body portion 10, the implant fixing body (f) and the plate is firmly fixed to each other by the cover screw (c).

Next, the incised oral mucosa is sutured as shown in FIG. 9F. If the alveolar bone is insufficient or lost around the defect before suture of the oral mucosa, the bone fragment (p) is displaced as shown in FIG. 9E. Bone augmentation surgery to restore the alveolar bone is performed.

Next, when bone bonding is made between the implant fixture f and the alveolar bone over time, the oral mucosa is re-dissected and the cover screw fastened to the implant fixture f as shown in FIG. 9g. ). As such, when the cover screw (c) is removed, the plate and the implant fixture (f) are simply in contact with each other.

Next, after removing the micro screw fastened to the plate arm part, the plate is cut out of the oral cavity. FIG. 9H is a view showing a state in which the plate has been removed so that the plate can be removed and the implant fixture f can be seen.

Next, as shown in Fig. 9i, a prosthesis is installed in the implant fixture f.

As such, the plate according to the present invention is fixed to the jaw by using a micro screw and is fastened to the implant fixture by a cover screw, so that the implant fixture is not shaken and good bone coupling can be obtained between the implant fixture and the alveolar bone. . In addition, when the bone assembly of the implant fixture and the alveolar bone is completed, the plate is removed by removing the cover screw fastened to the through hole of the body and the micro screw fastened to the through hole of the arm, and then removing the plate to the outside of the oral cavity and removing the prosthesis. Because of this installation, it is possible to prevent the occurrence of inflammation inside the oral mucosa after the implant procedure. In addition, since the plate can be installed to obtain an initial fixation for the alveolar bone in the severely damaged state of the alveolar bone, as the implant fixture is placed and bone augmentation is possible at the same time, the entire implant of the patient is damaged. Can significantly reduce the duration of treatment. In addition, the plate provides space for bone regeneration for alveolar bone that has been severely absorbed, and the plate can be easily removed after bone augmentation and implant-bone coupling is complete. In addition, the plate according to the present invention is to be removed after the implant is firmly fixed to the alveolar bone by bone augmentation, so that it does not cause inflammation due to friction, unwanted oral exposure, foreign body feeling. In addition, the support plate according to the present invention is to be fixed to the jaw bone as well as the alveolar bone.

In addition, the present invention can be safely installed in the correct position by installing the implant through a predetermined through-hole through the body portion, and at the same time by using a long hole-shaped plate to control the front and back relationship between the implants in installing the implant fixture This is possible.

In addition, in the present invention, at least one of the through holes of the plurality of through holes of the body part is arranged to be offset at regular intervals in the longitudinal direction, so the position of the through holes of the body part when installing the plate corresponds to the shape of the premolar part and the molar part. The implant fixture can be easily placed in the correct position.

In addition, in the present invention, the arm portion is longer than the arm portion extending from one side, the arm portion is longer than the arm portion extending from the other side, the arm portion extending from one side is extended to the buccal side, and the arm portion extending from the other side is shorter to the palatal side As a result, the plate can be more firmly installed in the jaw according to the anatomical structure.

Further, in the present invention, the plate is longer than the arm portion extending from the arm portion on both sides of the arm portion extending from one side of the arm portion extending from one side so that the arm portion extending from the middle of one side is the maxillary bone The plate can be fixed to the site by a micro screw, so that the plate can be installed more firmly.

An embodiment of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

Claims (7)

A support plate for securing an implant fixture to a fragile alveolar bone, A body having a plate shape and having a plurality of through holes formed in a line; A plurality of arm portions extending from both sides of the long body portion; The end of each arm portion is formed with a through hole for fixing to the alveolar bone or jaw bone using a micro screw, And the body portion is positioned between the cover screw fastened through the through hole and the implant fixture to fix the implant fixture. The method of claim 1, At least one of the through holes of the plurality of through holes of the body portion is a support plate, characterized in that the long elongated shape. The method according to claim 1 or 2, And at least one through hole of the plurality of through holes of the body portion is offset at regular intervals in the longitudinal direction. The method of claim 3, The through-hole of the body portion is arranged offset is the support plate, characterized in that the offset interval is 2mm or less. The method according to claim 1 or 2, The arm portion extending from one side is longer than the arm portion extending from the other side support plate. The method of claim 5, The arm portion extending from the center of the arm portion extending from one side, the support plate, characterized in that the length is longer than the arm portion extending from both sides to be fastened by using a micro screw to the maxillary bone. A support plate for securing an implant fixture to a fragile alveolar bone, A body having a plate shape and a through hole formed therein; A plurality of arm portions each extending from a side of the body portion, The end of each arm portion is formed with a through hole for fixing to the alveolar bone or jaw bone using a micro screw, And the body portion is positioned between the cover screw fastened through the through hole and the implant fixture to fix the implant fixture.

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