WO2022086048A1 - 교합력 완충기능을 갖는 치과 임플란트용 지대주 - Google Patents
교합력 완충기능을 갖는 치과 임플란트용 지대주 Download PDFInfo
- Publication number
- WO2022086048A1 WO2022086048A1 PCT/KR2021/014213 KR2021014213W WO2022086048A1 WO 2022086048 A1 WO2022086048 A1 WO 2022086048A1 KR 2021014213 W KR2021014213 W KR 2021014213W WO 2022086048 A1 WO2022086048 A1 WO 2022086048A1
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- WIPO (PCT)
- Prior art keywords
- abutment
- prosthesis
- fixing screw
- screw
- fastening
- Prior art date
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- 239000004053 dental implant Substances 0.000 title claims abstract description 31
- 230000003139 buffering effect Effects 0.000 title claims abstract description 15
- 239000007943 implant Substances 0.000 claims description 18
- 230000003405 preventing effect Effects 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 238000009751 slip forming Methods 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 abstract 1
- 239000012634 fragment Substances 0.000 description 20
- 239000000853 adhesive Substances 0.000 description 19
- 230000001070 adhesive effect Effects 0.000 description 19
- 208000010392 Bone Fractures Diseases 0.000 description 12
- 230000005489 elastic deformation Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000001055 chewing effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
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- 239000000956 alloy Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 208000024693 gingival disease Diseases 0.000 description 1
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
- 229920002529 medical grade silicone Polymers 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0086—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools with shock absorbing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0057—Connecting devices for joining an upper structure with an implant member, e.g. spacers with elastic means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0065—Connecting devices for joining an upper structure with an implant member, e.g. spacers with expandable or compressible means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0068—Connecting devices for joining an upper structure with an implant member, e.g. spacers with an additional screw
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/0078—Connecting the upper structure to the implant, e.g. bridging bars with platform switching, i.e. platform between implant and abutment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
Definitions
- the present invention relates to an abutment for a dental implant that performs a function of buffering the occlusal force transmitted through the prosthesis and is capable of elastic bonding with the prosthesis rather than an adhesive, and more particularly, the upper part of the abutment on which the prosthesis is mounted.
- a prosthesis fastening protrusion is formed on the side to protrude outward with an outer diameter larger than that of the lower portion, and an incision that divides the upper part of the abutment into a plurality of sections starts from the top surface of the abutment and continues downward for a certain section.
- the prosthesis can be easily coupled to the upper abutment without an adhesive by a simple operation using the elastic restoring force of the plurality of slices, and by the spiral or oblique cutout structure Sufficient cushioning function can be obtained, thereby effectively buffering the occlusal force continuously applied to the abutment to dramatically reduce loosening and fracture of the fixing screw, and by not using an adhesive for bonding with the prosthesis, fastening and disassembling is easy
- It relates to an abutment for dental implants that is simple and reduces the possibility of gum disease due to excess adhesive left on the gum side.
- a dental implant is a replacement for a lost natural tooth, and a fixture is implanted in the alveolar bone to fuse with the alveolar bone for a predetermined period of time, and then, by fixing prostheses such as an abutment and artificial teeth thereon, the original function of the tooth is restored. It refers to a natural tooth replacement.
- the implant used for artificial tooth surgery has a screw thread formed on the outer peripheral surface so that it can be placed in the alveolar bone, a fixture with a shaft hole formed along a vertical central axis, and an abutment with the lower part inserted into the fixture shaft hole and the prosthesis attached to the upper part (Abutment), and a fixing screw for firmly fixing the fixing body and the abutment, and the abutment has a screw insertion hole formed along the vertical central axis.
- the abutment and the fixing screw are integrally formed.
- the abutment is fastened and fixed to a fixture by a separate fixing screw or a fixing screw integrally formed on the lower part
- the conventional separate fixing screw is a head part, a screw thread part, and a head part and a thread part connecting the screw thread part. It consists of a body, a polygonal groove into which a jig is inserted is formed on the top surface of the head, and threads are formed in the lower part of the body to form a screw thread.
- the abutment in which the fixing screw fastened to the fixture is separately formed, is formed with a screw insertion shaft hole penetrating from the top to the bottom, and the outer surface of the abutment is the part to be inserted into the shaft hole of the fixture and the part to which the prosthesis is attached.
- the inner surface portion of the screw insertion shaft hole is formed with a step portion (D) to prevent downward movement of the fixing screw to which the bottom surface (C) of the head of the fixing screw is in contact.
- the operator When fastening the fixing screw in a type in which the abutment and the fixing screw are separated, the operator inserts the fixing screw through the insertion hole of the abutment until it reaches the shaft hole of the fixture while the abutment is seated in the shaft hole of the fixture.
- the fixing screw by rotating the fixing screw by inserting a jig such as a screwdriver into the polygonal groove formed on the upper surface of the head of the fixing screw, the bottom surface of the head of the fixing screw (C) is formed on the inner surface of the screw insertion shaft hole of the abutment, so that the fixing screw is
- the fixing screw that prevents downward movement is in contact with the downward movement preventing step portion (D)
- the head of the fixing screw presses the abutment toward the fixing body, and thus the thread formed on the outside surface of the fixing screw is formed on the inner surface of the shaft hole of the fixing body
- a strong tensile force is applied between the head and the threaded portion of the fixing screw, and as a result, the abutment is firmly fixed to the fixture by the fixing screw, and an adhesive is used to The prosthesis will be joined.
- the conventional fixing screw is a fixing screw [that is, a type of male screw] to the shaft hole of the fixture [that is, , a kind of female thread] and then strongly tightened, the fixing screw is subjected to a tensile force in the longitudinal direction, and as a result, the upper surfaces of the screws of the fixing screw strongly adhere to the lower surfaces of the threads of the shaft hole of the fixing body, thereby exerting a significant tightening force. It has the following fundamental problems or limitations.
- the tensile force generated between the head and the threaded portion of the fixing screw that can be sufficiently strongly fixed to the fixing body by tightening the conventional fixing screw is N, it is caused by the tightening of the fixing screw
- the applied tensile force is weaker than N, the expected sufficient tensile force cannot be obtained, and there is a problem in not having a strong fastening force.
- a gap is generated between the formed fixing screw downward movement preventing step (D), and the head of the fixing screw can no longer perform the role of pressing the abutment downward to fix the abutment to the fixing body, and the fixing screw head Since no tensile force is generated between the part and the threaded part, the upper surface of the thread formed on the fixing screw does not strongly adhere to the lower surface of the thread formed on the inner surface of the shaft hole of the fixture. Whenever a moving situation occurs, and further, whenever an occlusal force is applied from various directions, the stress is not evenly distributed and concentrated in one place. As a result, alveolar bone fracture, abutment neck fracture, fixture fracture, and fixing screw There is a problem in that fracture, fixing screw loosening phenomenon, etc. occur.
- the existing abutment is used for a certain period of time so that the occlusal force is applied to the abutment after initially fastening the fixing screw, then tightening the fixing screw again
- you have to use a cumbersome method to make one side of the attention strongly contact you have to use a cumbersome method to make one side of the attention strongly contact.
- the lateral pressure is continuously applied to the prosthesis even when the head of the fixing screw is in contact with one side of the abutment and is strongly in close contact with the fixture, the tensile force and lateral force are transmitted to the fixing screw through the abutment, thereby transferring the fixing screw Loosening or fracture may occur.
- the prosthesis is placed on the upper portion of the abutment while additional adhesive is applied inside the prosthesis and on the upper portion of the abutment. That is, by pressing in the downward direction), the prosthesis could be attached to the upper part of the abutment.
- the operator must additionally apply an adhesive to attach the prosthesis, and after curing the adhesive, the adhesive residue remaining between the prosthesis and the abutment/gum must be removed one by one.
- An object of the present invention is to provide an incision that divides the upper part of the abutment into a plurality of segments starting from the top surface of the abutment to which the prosthesis is coupled and continuing downward for a certain section, and improving the elasticity of the segments affecting the occlusal force buffering function.
- the length of the fragments is lengthened and the fragments have a helical shape to maximize the elastic restoring force, and as a result, the occlusal force is applied It is to provide an abutment for dental implants that can extend the lifespan of the implant and inconvenient points by improving the problems of conventional implants caused by lack of occlusal force buffering function by providing a cushioning function with strong elastic force when lost.
- Another object of the present invention is to reinforce the strength by increasing the volume of the slices by increasing the volume of the slices by forming the incision width of the lower part to be significantly smaller than the incision width of the upper part in the incision dividing the upper end of the abutment into a plurality of fragments.
- An object of the present invention is to provide an abutment for a dental implant that is in quick contact with a fragment so that the applied occlusal force is well distributed to adjacent fragments.
- the present invention in general, in the present invention, after the prosthesis is fixed to the abutment in which the upper part of the abutment is separated into a plurality of slices by the incision, in order to exert the occlusal force buffering function as described above, a plurality of incisions formed on the upper part of the abutment When an occlusal force is applied to the fragments separated with For this reason, if an adhesive filling between the fragments is used as a method for fixing the prosthesis to the abutment, the adhesive is cured after filling between the fragments, making elastic movement of the fragments impossible, and as a result, the cushioning function is substantially is lost.
- Another object of the present invention is to provide a prosthesis fastening protrusion having a larger diameter than the diameter of the directly lower portion on the upper portion of the abutment divided into a plurality of segments for elastic coupling between the prosthesis and the abutment in order to solve this problem.
- the plurality of fragments are elastically deformed inward as they enter the joint hole of the prosthesis and are restored to their original state, so that the prosthesis fastening protrusion of the upper portion of the abutment is located within the joint hole of the prosthesis.
- Dentistry having an occlusal force buffering function that is engaged and fastened with the corresponding fastening recess, so that the prosthesis fastening protrusion can be simply and firmly coupled to the corresponding fastening recess of the prosthesis without additional adhesive by the elastic restoring force of the plurality of fragments It is to provide an abutment for implant.
- Another object of the present invention is to form a spiral, oblique or vertical slot cutout with the top and bottom closed at regular intervals along the circumference at the lower part of the abutment to be inserted into the shaft hole of the fixture, thereby reducing the circumference by the slot cutout
- a plurality of independent surfaces formed along the abutment are deformed within the elastic range by strongly tightening the fixing screw and are in close contact with the inclined surface of the inner surface of the shaft hole of the fixture.
- Another object of the present invention is to horizontally penetrate the vertical central axis of the fixing screw on the upper or lower part of the screw thread of the fixing screw to divide the cross section perpendicular to the vertical central axis of the body part, and a helical incision in the form of a helical having a certain length vertically
- the fixing screw itself to have sufficient tensile force, elastic restoring force, and cushioning function by Or to provide an abutment for dental implants separately provided with a fixing screw capable of preventing the fixing screw fracture due to concentration in advance.
- another object of the present invention is that the screw thread upper surface (12a) of the fixing screw and the screw thread bottom surface (3a) formed on the inner surface of the shaft hole of the fixing screw are strongly fastened by the elastic force due to the spiral cutout between the fixing screw head part and the screw thread part. Therefore, there is no cold pressure welding phenomenon, and the fixing screw portion remaining when the fixing screw is fractured can be easily removed.
- another object of the present invention is to have a strong elastic restoring force by forming a helical-shaped incision in the upper portion of the screw thread portion of the fixing screw to have a strong elastic restoring force, so that when the abutment and the fixture are fastened, the helical-shaped section is deformed within the elastic range Even if a sinking phenomenon occurs in which the abutment moves downward due to the continuous occlusal force after the initial fastening of the internal type abutment, the helical-shaped section elastically deforms without the process of re-tightening the fixing screw to keep the abutment and the fixture constant. It is to make it possible to adhere with more force.
- the outer diameter of the upper end of the abutment on which the prosthesis is mounted has a larger outer diameter than the portion directly below it. It is formed and includes a prosthetic fastening protrusion protruding to the outside and a cutout that divides the upper part of the abutment into a plurality of sections, wherein the cutout is formed continuously for a certain section starting from the top surface of the abutment and continuing downward for a certain period. It is characterized in that it is made in a spiral or oblique shape.
- the present invention it is possible to maintain a strong fastening force for a long time by bonding the prosthesis to the upper part of the abutment by a simple operation without an adhesive, and effectively buffer the occlusal force continuously applied from the side or various directions, resulting in stress accumulation or concentration It is possible to prevent loosening and fracture of the fixing screw in advance, and it is possible to prevent the abutment from being cold-pressed welded to the insertion part of the shaft hole of the fixing body. , even when the fixing screw is broken, the fragment of the fixing screw remaining in the female screw part of the inner surface of the shaft hole of the fixture can be easily removed by inserting the flat-type driver into the cutout exposed on the fractured cross section and rotating it.
- FIG. 1A is a perspective view of a fixing screw according to an embodiment of the present invention.
- Fig. 1B is a perspective view showing a cross-sectional view taken along line A-A of Fig. 1A and a cross section thereof.
- Figure 2a is a perspective view of an abutment for an implant according to an embodiment of the present invention.
- Figure 2b is a perspective view of an abutment for an implant according to another embodiment of the present invention.
- Figure 3a is a cross-sectional view showing a state in which the fixing screw of Figure 1a provided separately according to an embodiment of the present invention is coupled to the abutment for implant of Figure 2a.
- Figure 3b is a conceptual view showing the action of the fixing screw on the abutment for implant in the coupled state of Figure 3a.
- Figure 4a is a perspective view of an abutment for an implant according to another embodiment of the present invention.
- Figure 4b is a perspective view of an abutment for implants according to another embodiment of the present invention.
- FIG. 5A is a cross-sectional view of a fixing screw according to another embodiment of the present invention
- FIG. 5B is a conceptual diagram illustrating an action of the fixing screw shown in FIG. 5A.
- FIG. 6 is a perspective view of a fixing screw according to another embodiment of the present invention.
- FIG. 7 is a perspective view in which the prosthesis (X) is coupled to the upper portion of the abutment without an adhesive according to the present invention.
- FIG. 8 is a cross-sectional view of a modified embodiment in which the inclination of the outer surface of the abutment is changed according to another embodiment of the present invention.
- FIG. 9 is a perspective view of a modified embodiment of the prosthesis fastening protrusion according to another embodiment of the present invention.
- FIG. 10 is a cross-sectional view of a modified embodiment of the upper abutment according to another embodiment of the present invention.
- FIG. 11 is a cross-sectional view of an abutment for an implant according to another embodiment of the present invention.
- FIG. 12 is a cross-sectional view of a modified embodiment of the prosthesis fastening protrusion according to another embodiment of the present invention.
- FIG. 13 is a reference view for explaining the effect that can be obtained during the operation of the abutment according to the modified embodiment shown in FIG.
- FIG. 14 is a cross-sectional view showing the force for pushing the fixing screw upward by the rotational force generated when the lateral occlusal force is applied to the abutment in the prior art.
- FIG. 1A is a perspective view of a fixing screw according to an embodiment of the present invention
- FIG. 1B is a perspective view illustrating a cross-sectional view taken along line A-A of FIG. 1A and a cross-sectional view thereof.
- Figure 2a is a perspective view of an abutment for implant according to an embodiment of the present invention
- Figure 2b is a perspective view of an abutment for implant according to another embodiment of the present invention.
- the upper outer surface of the abutment on which the prosthesis is mounted maintains a taper angle in which the outer diameter decreases from the portion where the prosthesis margin is located to the upper portion, and then directly below the upper surface
- the prosthesis fastening protrusion 210 which protrudes outward from the tapered surface by forming an outer diameter larger than the outer diameter in the room area is formed directly below.
- the cutouts 220 and 220' for dividing the upper part of the abutment into a plurality of slices are formed continuously from the top surface of the abutment toward the lower side for a certain section.
- the cutouts 220 and 220' are formed in at least two places on the upper part of the abutment, so that the upper part of the abutment can be divided into at least two or more segments.
- FIG. 2a shows that the upper part of the abutment is divided into four slices by four incisions
- FIG. 2B shows that the upper part of the abutment is divided into two slices by two incisions.
- the upper portion of the abutment is divided into a plurality of sections by the incision, so that when the prosthesis is fitted on the upper portion of the abutment for dental implant according to the present invention, the plurality of sections are inserted into the joint hole of the prosthesis to the inside.
- It can be elastically deformed, and furthermore, when the prosthesis fastening protrusion 210 is engaged with the corresponding fastening recessed recess X1 in the coupling hole of the prosthesis X, the prosthesis fastening protrusion is caused by the elastic restoring force of the plurality of slices.
- 210 may be firmly coupled to the corresponding fastening recess (X1).
- the prosthesis (X) can be coupled to the upper portion of the abutment 200 by a simple operation without the use of an adhesive.
- a planar part 250 is formed on a portion of the circumferential surface on which the prosthesis fastening protrusion 210 ′ is formed.
- the flat portion 250 specifies a seating direction of the prosthesis and functions to prevent rotation of the prosthesis after seating.
- the flat portion may be formed as an inclined surface having a taper angle equal to or greater than the taper angle of the abutment.
- the cutouts 220 and 230 are continuously formed in a certain section from the top surface of the abutment to the lower side, and are formed in a spiral or oblique shape for a certain section.
- a spiral or oblique incision is intended to further increase the elastic deformation force and elastic restoration force of the upper part of the abutment, and at the same time supplement the function of buffering the occlusal force of the abutment itself and preventing the fixing screw from loosening.
- the cutouts 220 and 230 may buffer the occlusal force while the plurality of independent surfaces formed along the circumference of the cutouts 220 and 230 formed in a spiral or oblique shape are deformed within an elastic range.
- the spiral or oblique cutout formed in a certain section is preferably formed so that the cutting direction from the top to the bottom of the cutout section is the same as the rotational direction for fastening the fixing screw responsible for fastening with the fixture,
- the effect is that when occlusal force is applied to the abutment through the prosthesis, the force is applied in the direction of fastening the fixing screw to the lower fixing screw in the process of transmitting the occlusal force through the helical-shaped helical fragments formed on the upper portion of the abutment. It is possible to obtain the effect of preventing the fixing screw from loosening by exhibiting its function. In particular, in the abutment in which the fixing screw and the prosthesis are integrally formed, the fixing screw loosening preventing effect may be greater.
- Figure 4a is a perspective view of an abutment for implant according to another embodiment of the present invention
- Figure 4b is a perspective view of an abutment for implant according to another embodiment of the present invention.
- the abutment 300 for dental implants provided with the prosthesis mounting part and the threaded part integrally has a predetermined vertical length, and the threaded part with threads formed on the outer circumferential surface.
- the spiral cutout 352 is formed to pass through the vertical central axis of the body in a horizontal direction and to have a predetermined length in the longitudinal direction of the vertical central axis of the body, so as to divide a cross section perpendicular to the vertical central axis into equal parts.
- the upper outer surface of the abutment on which the prosthesis is mounted of the prosthesis mounting portion maintains a taper angle that decreases toward the top from the portion P where the prosthesis margin is located, and the upper surface
- the prosthesis fastening protrusions 310 and 310' that protrude outward from the tapered surface by forming an outer diameter larger than that of the directly lower portion in the directly lower portion are formed.
- the cutouts 320 and 320' for dividing the upper part of the abutment into a plurality of slices are continuously formed in a certain section from the top surface of the abutment to the lower side. It forms a spiral or oblique shape.
- at least one of the cutouts 320 and 320' is formed on the upper portion of the abutment, so that the upper portion of the abutment can be divided into at least two or more pieces.
- the fragments having a protrusion having a larger diameter than the lower portion on the upper outer surface of the abutment are deformed toward the vertical central axis during the process of mounting the prosthesis, and then are restored to a circular shape and combined with the groove formed on the bottom surface of the inner shaft hole of the prosthesis.
- the bonding of the abutment and the prosthesis can be made without an adhesive.
- the slices have a spiral or oblique helical shape of a certain section that is rotated about the vertical central axis of the abutment by a spiral or oblique incision, thereby buffering the occlusal force applied when chewing food.
- a flat portion 350 having a taper angle equal to or greater than the taper angle of the abutment is formed on a portion of the circumferential surface on which the prosthesis fastening protrusion 310 ′ is formed.
- the flat portion 370 specifies a seating direction of the prosthesis and supplements the function of preventing rotation of the prosthesis.
- the fixing screw 100 separately provided on the abutment for dental implants of the present invention has a predetermined vertical length and has a screw thread portion 12 in which threads 12a, 12b are formed on the outer circumferential surface, the above
- the head portion 20 is formed on the upper side of the screw thread portion and has a polygonal coupling groove 22 in which the driver is fitted on the top surface thereof, and the screw thread portion 12 and the head portion 20 are connected in the longitudinal direction.
- the helical cutout 14 of the helical shape is configured to include the body portion 10 formed with a predetermined length.
- the spiral cutout 14 horizontally penetrates the vertical central axis of the body 10, as shown in FIG. 1B, forming a predetermined length in the longitudinal direction of the vertical central axis of the body 10. By being, it is formed so as to divide the cross section perpendicular to the vertical central axis into equal parts.
- the spiral cutout 14 may be selectively formed in a clockwise or counterclockwise direction.
- the spiral cutout 14 may be selectively formed in the threaded portion 12 .
- the body portion 10 may extend below the screw thread portion 12 , and a spiral cutout 16 may be further formed in the extension portion of the body portion 10 .
- the cutting direction of the helical helical cutout formed between the head and the screw thread of the fixing screw is the same as the direction of the screw thread of the fixing screw.
- the abutment 200 for dental implants of the present invention is a plurality of slot cutouts 240, 240' along the circumference, below the abutment to be inserted into the shaft hole of the fixture.
- at least one end is blocked at the lower part of the abutment inserted into the shaft hole of the fixture among the abutment parts, and a plurality of slot cutouts 240 and 240 ′ penetrating from the outer diameter to the inner diameter are formed at regular intervals along the circumference.
- the slot cutouts 240 and 240' may be formed in a diagonal, vertical, or horizontal shape.
- a force is generated that continuously pushes the head of the fixed screw upward, and as a result, the upper surface of the fixed screw is strongly adhered to the lower surface of the screw formed on the inner surface of the shaft hole of the fixture to prevent loosening of the fixed screw. do.
- the continuous occlusal force applied during chewing of food is buffered by continuously deforming and restoring a plurality of independent surfaces formed along the circumference within the elastic deformation limit.
- Figure 3a is a cross-sectional view showing a state in which the fixing screw of Figure 1a provided separately according to an embodiment of the present invention is coupled to the abutment for implantation of Figure 2a, Figure 3b is on the abutment for implantation in the coupled state of Figure 3a It is a conceptual diagram showing the action of the fixing screw on the
- the helical cutout 14 formed in the body portion 10 of the fixing screw 100 increases the elastic deformation force and elastic restoring force of the fixing screw itself, so that the fixing screw of the present invention is the conventional one. Compared to the fixing screw, it acts to fasten the abutment to the fixture more firmly.
- the fixing screw 100 of the present invention increases the absolute length that can be elastically deformed by the spiral cutout 14 and at the same time has a stronger elastic restoring force after elastic deformation, so that more fastening energy, that is, more A strong fastening force can be accommodated, and as a result, it can have a stronger fastening force than a conventional fastening screw, so that problems such as loosening of the fastening screw can be prevented in advance.
- the spiral cutout 14 may be formed in at least a certain section between the upper end and the lower end of the body portion 10 .
- the spiral cutout 14 includes the threaded portion 12 and the head portion 10 . It is formed in the body portion 10 for connecting the. 3A and 3B, in a state where the threaded portion 12 of the fixing screw 100 is engaged with the thread 3 formed on the inner surface of the shaft hole of the fixing body 1, if the fixing screw is continuously tightened strongly, The fixing screw 100 is stretched by a certain length within the limit of elastic deformation by the elastic force of the spiral cutout 14, and as indicated by an arrow in FIG. 3A by the elastic restoring force of the spiral cutout 14, the fixing screw It acts to strongly pull the screw thread portion 12 of the upper side.
- the screw thread upper surface 12a of the fixing screw is strongly in close contact with the screw thread bottom surface 3a formed to correspond to the inner surface of the shaft hole of the fixture 1, and between the interlocked threads It is possible to secure a strong fastening force, and as a result, it is possible to significantly reduce the loosening of the fixing screw.
- the direction in which the helical helical cutout formed between the head portion and the screw thread portion of the fixing screw is formed in the same direction as the direction in which the thread portion of the fixing screw is formed.
- the spiral cutout 16 may also be formed in a helical shape at the lower portion of the screw thread portion 12 formed in the body portion 10 .
- the fixing screw is continuously tightened even after the end of the fixing screw 100 comes into contact with the bottom surface of the shaft hole of the fixture, the bottom surface of the shaft hole of the fixing body and the bottom surface of the fixing screw are in contact, so that a helical-shaped spiral under the screw thread part An elastic restoring force is generated by compressing the cutout, and the threaded portion of the fixing screw is strongly pushed upward by the elastic restoring force.
- the fixing screw of the present invention is preferably made of a metal having excellent elasticity, such as a Ni-Ti alloy.
- the head portion 20 of the fixing screw 10 may further include a screw loosening preventing protrusion 26 at a certain portion of the outer circumferential surface, as shown in FIG. 1A, which, for example, in FIG. 1A In fastening the abutment 200 for implantation of FIG. 2A to the fixture by the fixing screw 10 of By interlocking with the , loosening of the fixing screw can be prevented complementary.
- the fixing screw 100 according to the present invention is fastened only within the elastic deformation limit, greater elastic force and elastic restoring force than the existing fixing screws can be secured by the spiral cutouts 14 and 16,
- the screw thread upper surface (12a) of the fixing screw can strongly and continuously maintain the force of strongly adhering and pressing the threaded lower surface (3a) formed on the inner surface of the shaft hole of the fixture, and as a result, even after a long time, the abutment (15)
- the fastening force to be fastened to the stagnant (1) does not decrease.
- the spiral cutouts 14 and 16 formed in the body portion 10 of the fixing screw may perform a stress buffering function by their structural characteristics and elastic restoring force.
- the spiral cutout structure itself cannot buffer such force.
- the stress applied from the side or from above does not accumulate on the fixing screw itself, and the possibility of fracture of the fixing screw is significantly lowered.
- the conventional problem in the internal type in which the lower abutment is inserted into the shaft hole of the fixture and fastened can also be solved by the elastic restoration action of the spiral cutout of the present invention. That is, as mentioned above, even after the fixing screw is initially fastened with a strong fastening force, a sinking phenomenon in which the abutment sinks downward over time may occur. Even if it moves to , it pulls the head part of the upper end of the fixing screw downward by the elastic restoration action of the spiral cutout, thereby maintaining a strong fastening force.
- the fracture occurs at a relatively weak point where the spiral incision is formed, and in this case, the fracture surface passes through the vertical central axis as shown in FIG.
- the spiral incision is exposed in a straight line. Accordingly, when the straight-type driver is inserted into the straight cutout and rotated, the fragments of the fixing screw remaining on the inner surface of the shaft hole of the fixture can be easily removed.
- FIG. 6 is a perspective view of a fixing screw according to another embodiment of the present invention.
- a helical-shaped spiral cutout is formed under the screw thread portion of the fixing screw of the present invention, and a straight, cross-shaped or polygonal protrusion is formed on the bottom surface of the lowermost end of the fixing screw, and it corresponds to the lowermost section of the shaft hole of the fixing body. It is possible to specify the fastening rotation position of the fixing screw by forming a groove that is used, and additionally perform a function of preventing loosening of the fixing screw.
- FIG. 8 is a cross-sectional view of a modified embodiment in which the inclination of the outer surface of the abutment is changed according to another embodiment of the present invention.
- the abutment Between the upper point (A) of the maximum diameter of the abutment where the prosthesis margin is located (preferably, the upper 1.5 mm point) and the portion (B) directly below the prosthesis fastening protrusion 210', the abutment
- the slope change of the outer surface is made at least twice.
- the outer surface of the abutment is sequentially in the upward direction from the upper point (A) of the maximum diameter of the abutment, the first inclined outer surface (L1), the first vertical outer surface (L2), the second inclined outer surface (L3) and the second 2 may be formed of a vertical outer surface (L4).
- the outer surface of the abutment by configuring the outer surface of the abutment to have an inclination change of at least two times or more, it is possible to additionally secure the horizontal thickness of the prosthesis fastening protrusion on the upper part of the abutment, and as a result, when the prosthesis is fastened to the prosthesis fastening protrusion on the upper part of the abutment, it is combined Strength can be reinforced or increased.
- the horizontal thickness of the prosthetic fastening protrusion at the upper part of the abutment is too thin, so that the prosthesis is firmly coupled when the prosthesis is subsequently fastened. It may not be able to support or support the prosthesis, which may cause problems such as shaking or destruction of the prosthesis.
- FIG. 9 is a perspective view of a modified embodiment of the prosthesis fastening protrusion according to another embodiment of the present invention.
- the prosthesis fastening protrusion 210' has an inwardly recessed prosthesis fastening position recessed part 210a', which specifies the fastening position of the prosthesis when the prosthesis is mounted, and prevents rotation of the prosthesis.
- the prosthesis fastening position recessed portion 210a ′ not only allows the operator to specify the exact fastening position where the prosthesis is to be placed during the prosthesis operation, but also when the prosthesis operation is completed in the future, the prosthesis is removed by the force applied to the prosthesis. rotation can be prevented.
- the slope of the outer surface of a certain section of the portion directly below the prosthesis fastening protrusion is the outer surface of the portion corresponding to the lower third of the section between the maximum diameter of the abutment where the prosthesis margin is located and the top of the abutment. It may be formed with a slope less than the slope, and in some cases, a vertical section of zero slope maintaining the same diameter for a certain section may be formed.
- the prosthesis part (indicated by a circle) protruding sharply inside the prosthesis may be worn or broken. Therefore, by forming an inclined section having a small inclination or a vertical section of zero inclination in a certain section downward from the portion directly below the fastening protrusion of the prosthesis, the durability of the prosthesis itself coupled to the portion directly below the fastening protrusion of the abutment can be reinforced. .
- FIG. 11 is a cross-sectional view of an abutment for an implant according to another embodiment of the present invention.
- the through hole passing from the top surface of the abutment to the bottom surface is configured to have a larger inner diameter (D2) at the lower side after the upper inner diameter (D1) of the through hole is kept the same for a certain period. there is.
- D2 inner diameter
- D1 inner diameter of the through hole
- the thickness of the fastening portion at the upper side of the abutment where the prosthesis fastening protrusion 220' is located increases, so that the coupling strength can be additionally reinforced when the prosthesis is fastened.
- the lower inner diameter D3 of the through hole may be smaller than the upper inner diameter D1 of the through hole.
- FIG. 12 is a cross-sectional view of a modified embodiment of the prosthesis fastening protrusion according to another embodiment of the present invention
- FIG. 13 is a reference view for explaining the effect that can be obtained during the operation of the abutment according to the modified embodiment shown in FIG. . 12
- the prosthesis fastening protrusion is configured to gradually increase in outer diameter in the downward direction starting from the upper end thereof, and as a result, when viewed from a vertical cross-section of the prosthesis fastening protrusion, the prosthesis fastening protrusion is vertically asymmetric based on the maximum wind melting point is formed so that a portion of the outer surface 220c' of the prosthesis fastening protrusion may have an inclination of a predetermined angle.
- the upper end of the inclined outer surface 220c' can be more easily inserted into the joint hole of the corresponding prosthesis to enter, which In particular, as shown in FIG. 13, even when the implantation angle of the adjacent abutment is too large and it is not easy to fasten the prosthesis due to interference between adjacent prostheses, the upper end of the outer surface 220c' of the prosthesis fastening protrusion uses less resistance.
- the prosthesis protruding fastening portion having the incision inside is deformed in the inward direction to reduce resistance, and at the same time, the prosthesis is inclined to the prosthesis protrusion fastening portion. While sliding along the outer surface 220c', it can be relatively easily entered.
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
Claims (14)
- 교합력 완충기능을 갖는 치과 임플란트용 지대주에 있어서,보철물이 장착되는 지대주 상부의 상단부위의 외경이 그 직하방 부위보다 더 큰 외경을 가지도록 형성되어, 외측으로 돌출되어 있는 보철물 체결돌출부; 및상기 지대주 상부를 복수개의 절편들로 분할하는 절개부;를 포함하고,상기 절개부는 지대주 상단면에서 시작하여 하측을 향해 일정구간 연속되게 이어져 형성되되, 일정구간 나선형 또는 사선형으로 이루어지는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 보철물 체결돌출부가 형성되어 있는 원주면 일부에는 평면부가 형성되어 있는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 절개부의 하부 절개부폭은 상단부 부위의 절개부폭보다 작게 형성되어지는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 나선형 또는 사선형의 절개부는 그 절개 구간의 상부에서 하부로 이어지는 절개방향이 지대주와 고정체의 체결을 담당하는 고정스크류를 체결시키기 위한 회전방향과 동일하게 형성되는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 지대주는 고정 스크류에 의해 고정체에 체결되고, 상기 고정 스크류는 소정의 수직적 길이를 가지며 외주면에 나사산들이 형성된 나사산부, 상기 나사산부의 상측에 형성되며 그 상단면에 드라이버가 끼워지는 결합홈이 형성된 헤드부, 및 상기 나사산부와 상기 헤드부를 연결하며 길이 방향으로 헬리칼 형태의 나선형 절개부가 일정 길이 형성된 몸체부를 포함하고, 상기 나선형 절개부는 상기 몸체부의 수직중심축을 수평으로 관통하여, 몸체부의 수직중심축의 길이 방향으로 일정 길이 형성됨으로써, 상기 수직중심축에 직각인 횡단면을 등분하도록 형성된 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 지대주 부위 중 고정체 축공에 삽입되는 지대주 하부에는 적어도 일단이 막혀있으며 외경에서 내경까지 관통된 슬롯 절개부가 원주를 따라 일정간격으로 복수개 형성되어 있는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제6항에 있어서, 상기 슬롯 절개부는 사선, 수직선 또는 수평선으로 이루어지는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제5항에 있어서, 상기 고정스크류의 헤드부는 외주면 일정 부위에 스크류 풀림 방지 돌출부를 더 구비하고, 고정 스크류 체결 시, 상기 스크류 풀림 방지 돌출부가 상기 지대주 상부에 형성되어 있는 나선형 또는 사선형의 절개부에 끼움 결합되어, 고정 스크류의 풀림을 방지하는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제2항에 있어서, 상기 평면부는 경사진 면으로 형성될 수 있는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 보철물 마진이 위치하는 지대주의 최대 직경부(A)의 상부 지점과 상기 보철물 체결돌출부의 직하방 부위 사이에서, 지대주 외측면의 경사도 변화가 적어도 2회 이루어지는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 보철물 체결돌출부에는 내측으로 함몰된 보철물 체결 위치 함몰부가 추가적으로 형성되어, 보철물 장착시 보철물의 체결 위치를 특정해 주며, 보철물 회전을 방지하는 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 보철물 체결돌출부의 직하방 부위 일정구간은 보철물 마진이 위치되는 지대주의 최대직경부와 지대주 상단 사이의 구간 중 하부 1/3에 해당되는 부위의 외측면 경사도보다 적은 경사도로 형성되거나 제로 경사도를 갖는 것을 특징으로 하는 치과 임플란트용 지대주
- 제1항에 있어서, 상기 지대주의 상단면에서 하단면까지 관통하는 관통홀의 상부쪽 내경이 일정 구간 동일하게 유지된 후, 그 하방에서 더 큰 내경을 갖도록 구성된 것을 특징으로 하는 치과 임플란트용 지대주.
- 제1항에 있어서, 상기 보철물 체결돌출부의 수직 단면에서 보았을 때, 상기 보철물 체결돌출부의 최대 풍융점을 기준으로 상하 비대칭(220c')으로 형성되어 있는 것을 특징으로 하는 치과 임플란트용 지대주.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3195835A CA3195835A1 (en) | 2020-10-20 | 2021-10-14 | Dental implant abutment having occlusal force buffering function |
EP21883119.6A EP4233780A4 (en) | 2020-10-20 | 2021-10-14 | DENTAL IMPLANT SUPPORT WITH OCCLUSAL FORCE BUFFER FUNCTION |
CN202180077698.5A CN116456933A (zh) | 2020-10-20 | 2021-10-14 | 具有咬合力缓冲功能的牙科种植体用基台 |
JP2023524367A JP2023547099A (ja) | 2020-10-20 | 2021-10-14 | 咬合力緩衝機能を有する歯科インプラント用アバットメント |
US17/607,052 US20230263601A1 (en) | 2020-10-20 | 2021-10-14 | Dental implant abutment having occlusal force buffering function |
Applications Claiming Priority (4)
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KR10-2020-0135868 | 2020-10-20 | ||
KR20200135868 | 2020-10-20 | ||
KR1020210103142A KR20220052264A (ko) | 2020-10-20 | 2021-08-05 | 교합력 완충기능을 갖는 치과 임플란트용 지대주 |
KR10-2021-0103142 | 2021-08-05 |
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Country Status (5)
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US (1) | US20230263601A1 (ko) |
EP (1) | EP4233780A4 (ko) |
JP (1) | JP2023547099A (ko) |
CA (1) | CA3195835A1 (ko) |
WO (1) | WO2022086048A1 (ko) |
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IL230833A0 (en) * | 2014-02-05 | 2014-09-30 | Ophir Fromovich | bone graft |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8142191B2 (en) * | 2006-02-24 | 2012-03-27 | Zimmer Dental, Inc. | Ceramic/metallic dental abutment |
KR20170060539A (ko) * | 2015-11-24 | 2017-06-01 | 임석주 | 이탈방지홈이 형성된 체결스크류 |
KR20180083760A (ko) * | 2017-01-13 | 2018-07-23 | 주식회사 덴플렉스 | 치과용 임플란트 |
KR101988194B1 (ko) * | 2019-01-11 | 2019-06-12 | 박덕희 | 보철물의 적용 범위가 확장되는 임플란트용 티베이스 |
WO2020078947A1 (en) * | 2018-10-15 | 2020-04-23 | MORBIDONI, Luca | Dental prosthetic system of implant type for temporary fixing |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5782918A (en) * | 1996-12-12 | 1998-07-21 | Folsom Metal Products | Implant abutment system |
DE10336537B3 (de) * | 2003-08-05 | 2004-12-16 | Paraplant 2000 Ohg | Implantatteil für ein Zahnimplantat |
KR100646771B1 (ko) * | 2005-05-09 | 2006-11-23 | 김만용 | 치과용 임플란트 장치 및 이에 사용되는 보정장치 |
US8506296B2 (en) * | 2005-06-17 | 2013-08-13 | Zimmer Dental, Inc. | Dental restorative system and components |
US9095398B2 (en) * | 2011-06-01 | 2015-08-04 | Straumann Holding Ag | Two-part dental component |
DE102016008669B4 (de) * | 2016-07-20 | 2018-10-11 | Bruno Spindler | Suprastrukturträger mit besonderer Implantatpfostengeometrie |
FR3062053B1 (fr) * | 2017-01-26 | 2021-07-16 | Anthogyr Sa | Piece intermediaire de fixation |
KR102099062B1 (ko) * | 2019-12-10 | 2020-04-08 | 장천석 | 교합고경의 안정적인 치수 조절이 가능한 임플란트의 어뷰트먼트 |
-
2021
- 2021-10-14 EP EP21883119.6A patent/EP4233780A4/en active Pending
- 2021-10-14 WO PCT/KR2021/014213 patent/WO2022086048A1/ko active Application Filing
- 2021-10-14 JP JP2023524367A patent/JP2023547099A/ja active Pending
- 2021-10-14 CA CA3195835A patent/CA3195835A1/en active Pending
- 2021-10-14 US US17/607,052 patent/US20230263601A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8142191B2 (en) * | 2006-02-24 | 2012-03-27 | Zimmer Dental, Inc. | Ceramic/metallic dental abutment |
KR20170060539A (ko) * | 2015-11-24 | 2017-06-01 | 임석주 | 이탈방지홈이 형성된 체결스크류 |
KR20180083760A (ko) * | 2017-01-13 | 2018-07-23 | 주식회사 덴플렉스 | 치과용 임플란트 |
WO2020078947A1 (en) * | 2018-10-15 | 2020-04-23 | MORBIDONI, Luca | Dental prosthetic system of implant type for temporary fixing |
KR101988194B1 (ko) * | 2019-01-11 | 2019-06-12 | 박덕희 | 보철물의 적용 범위가 확장되는 임플란트용 티베이스 |
Non-Patent Citations (1)
Title |
---|
See also references of EP4233780A4 * |
Also Published As
Publication number | Publication date |
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US20230263601A1 (en) | 2023-08-24 |
JP2023547099A (ja) | 2023-11-09 |
EP4233780A1 (en) | 2023-08-30 |
EP4233780A4 (en) | 2024-09-04 |
CA3195835A1 (en) | 2022-04-28 |
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