WO2020230916A1 - Système d'implant dentaire - Google Patents

Système d'implant dentaire Download PDF

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Publication number
WO2020230916A1
WO2020230916A1 PCT/KR2019/005770 KR2019005770W WO2020230916A1 WO 2020230916 A1 WO2020230916 A1 WO 2020230916A1 KR 2019005770 W KR2019005770 W KR 2019005770W WO 2020230916 A1 WO2020230916 A1 WO 2020230916A1
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WO
WIPO (PCT)
Prior art keywords
cap
dental implant
implant system
abutment
circumferential surface
Prior art date
Application number
PCT/KR2019/005770
Other languages
English (en)
Korean (ko)
Inventor
허영구
Original Assignee
주식회사 네오바이오텍
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Publication of WO2020230916A1 publication Critical patent/WO2020230916A1/fr

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    • 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
    • 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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • 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
    • A61C8/0062—Catch or snap type connection
    • 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
    • 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
    • A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
    • 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
    • A61C8/0074—Connecting devices for joining an upper structure with an implant member, e.g. spacers with external threads

Definitions

  • the present invention relates to a dental implant system.
  • a dental implant system is known as one of the surgical methods for repairing a defective part of a natural tooth.
  • FIG. 8 is a schematic diagram showing an example of a conventionally known dental implant system.
  • the dental implant system 10 may include a fixture 11, an abutment 12, a connection screw 13, and the like.
  • the fixture 11 may be placed in the alveolar bone in the defective area.
  • An outer circumferential surface of the fixture 11 may be provided with an external screw thread 11a for insertion and fixing, and an internal thread 11c for fastening the abutment 12 may be provided on the inner circumferential surface.
  • the abutment 12 is fastened to the fixture 11 so that a portion of the lower end may be disposed in the space 11b inside the fixture 11. A portion of the upper end of the abutment 12 may be exposed to the outside of the fixture 11. A hole 12a for fastening with the fixture 11 may be provided in the center of the abutment 12.
  • connection screw 13 may couple the abutment 12 and the fixture 11.
  • the upper part including the head of the connection screw 13 may be disposed inside the abutment 12, and the remaining lower part will be combined with the internal screw thread 11c in the space 11b of the fixture 11 I can.
  • the artificial tooth may be fastened to the upper portion of the abutment 12 by an adhesive means such as cement.
  • the conventional dental implant system as described above has a structure in which a fixture, abutment, etc. are completely fixedly coupled. Therefore, when various loads are applied to the abutment due to the mastication movement, such loads are transferred to the fixture as they are. This may lead to a decrease in the fixing power of the fixture, or in severe cases, may cause a problem of damaging the fixture.
  • Embodiments of the present invention are to provide a dental implant system capable of buffering the occlusal force with a fine degree of motion.
  • embodiments of the present invention are to provide a dental implant system capable of minimizing the use of bonding means and bonding the crown.
  • the implant to be placed in the alveolar bone; Abutment that is fastened to the implantation body; And a cap fastened to the insertion region of the upper end of the abutment, wherein the cap extends downward from the inner upper surface, and includes a support portion contacting and supported on an inner circumferential surface of the groove formed in the abutment, and the support portion,
  • a dental implant system may be provided, including a support surface formed inclined on an outer circumferential surface of the support unit so as to be supported in contact with the inner circumferential surface of the groove.
  • an abutment of a dental implant system in which a cap or crown is fastened to an upper end, comprising: an insertion region provided on a part of the upper end and inserted into the cap or crown; And a groove portion extending downward from the upper surface; wherein the insertion region is formed such that the insertion surface has a first inclination angle with respect to a vertical direction, and the groove portion has an inner circumferential surface at a second inclination angle with respect to the vertical direction It is formed to have, and the first and second inclination angles are formed differently from each other, the abutment of the dental implant system may be provided.
  • the dental implant system has a structure in which a cap or crown is mounted on a fixture, but external forces in various directions applied to the cap or crown may be supported by the inclination of the insertion surface or the support. .
  • the cap or the crown may have a fine degree of motion by the separation prevention unit, and thus characteristics more similar to those of natural teeth may be implemented.
  • the cap or crown may be properly supported through the inclination of the insertion surface and the support part, the separation prevention part, etc., so that the use of an adhesive may be omitted or minimized.
  • FIG. 1A is an exploded perspective view of a dental implant system according to a first embodiment of the present invention.
  • FIG. 1B is a longitudinal cross-sectional view of the dental implant system shown in FIG. 1A.
  • FIG. 1C is a longitudinal sectional exploded view of the dental implant system shown in FIG. 1A.
  • FIG. 2A is a longitudinal cross-sectional view of a dental implant system according to a second embodiment of the present invention.
  • FIG. 2B is an exploded longitudinal sectional view of the dental implant system shown in FIG. 2A.
  • FIG. 3 is a longitudinal sectional exploded view of a dental implant system according to a third embodiment of the present invention.
  • FIG. 4 is a longitudinal sectional exploded view of a dental implant system according to a fourth embodiment of the present invention.
  • FIG. 5 is a longitudinal sectional exploded view of a dental implant system according to a fifth embodiment of the present invention.
  • FIG. 6 is a longitudinal sectional exploded view of a dental implant system according to a sixth embodiment of the present invention.
  • FIG. 7 is a longitudinal sectional exploded view of a dental implant system according to a seventh embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing an example of a conventionally known dental implant system.
  • 1A is an exploded perspective view of a dental implant system according to a first embodiment of the present invention.
  • 1B is a longitudinal cross-sectional view of the dental implant system shown in FIG. 1A.
  • 1C is a longitudinal sectional exploded view of the dental implant system shown in FIG. 1A.
  • the dental implant system 100 according to the first embodiment may be intended to be used for a single missing tooth.
  • the selection of the dental implant system according to each embodiment may be made by the judgment of the practitioner, and the object to be used is not necessarily limited to those illustrated.
  • the dental implant system 100 of the present embodiment may include a fixture 110.
  • the fixture 110 may be installed and fixed in the alveolar bone.
  • the lower region of the fixture 110 may be disposed inside the alveolar bone, and the upper region of the fixture 110 may be exposed to the outside of the gum.
  • a cap 120 or a crown 160 may be fastened to the upper end of the fixture 110.
  • the fixture 110 may include an implantable body 110a and an abutment 110b.
  • the implantation body 110a and the abutment 110b may be coupled to each other to form a single fixture 110.
  • the implantation body 110a may generally form a lower region of the fixture 110.
  • the implantation body 110a may have a screw thread formed on the outer circumferential surface thereof, thereby being implanted and fixed in the alveolar bone.
  • a fastening groove with an open top may be formed in the center of the implantation body 110a.
  • a screw thread may be formed on the inner circumferential surface of the implanter 110a forming the fastening groove, whereby the abutment 110b may be fastened with the implanter 110a.
  • the abutment 110b may generally form an upper region of the fixture 110.
  • the lower region of the abutment 110b may be inserted into the implantation body 110a and may be fastened to the thread of the inner circumferential surface of the implantation body 110a.
  • the upper region of the abutment 110b may be exposed and disposed above the implantation body 110a.
  • the abutment 110b may have an insertion region 112 on a part of the upper side.
  • the cap 120 or the crown 160 may be fastened to the insertion region 112.
  • the insertion region 112 may be defined as a partial region of the top of the abutment 110b to which the cap 120 or the crown 160 is fastened.
  • the abutment 110b may have a predetermined range of exposed areas 111 under the insertion area 112.
  • the exposed region 111 may be defined as between a lower region of the abutment 110b inserted and fastened with the implanter 110a and an upper region of the abutment 110b to which the cap 120 or crown 160 is fastened.
  • the exposed area 111 may be defined as an exposed area between the top of the implant 110a and the bottom of the cap 120 or the crown 160.
  • the exposed area 111 may generally be intended as a region where the gums come into contact.
  • the exposed area 111 may be formed so that the outer surface thereof is inclined by a predetermined degree in a form in which the cross-sectional area becomes smaller toward the lower side.
  • the insertion region 112 may have an insertion surface 112a forming an outer circumferential surface.
  • the insertion surface 112a may be formed to be inclined at a predetermined angle.
  • the insertion region 112 may be formed to have an outer diameter gradually increasing toward the lower side, and thus, the insertion surface 112a may be formed to be inclined downward by a predetermined degree toward the outer side in the radial direction.
  • the inclination angle formed by the insertion surface 112a with the vertical direction will be referred to as a first inclination angle a1.
  • a groove 113 with an open top may be formed in the center of the insertion region 112.
  • the groove 113 may be formed to extend from the top of the insertion region 112 downward toward the inside of the insertion region 112 by a predetermined degree.
  • the cap 120 or the protrusion 122 of the crown 160 may be disposed in the groove 113.
  • the groove part 113 may include an upper region 113a and a lower region 113b.
  • the upper region 113a corresponds to the support part 122a provided on the protrusion part 122.
  • the circumferential surface 113c of the upper region 113a may be formed to be inclined at a predetermined angle. Specifically, the circumferential surface 113c of the upper region 113a may form a second inclination angle a2 with respect to the vertical direction and may be formed to be inclined downward.
  • a support part 122a provided on the protrusion 122 may be disposed, and the circumferential surface 113c may be coupled to the support surface 122c of the support part 122a. This will be amplified in relation to the cap 120.
  • the lower region 113b corresponds to the rotation preventing part 122b provided on the protruding part 122.
  • the lower region 113b contacts the support surface 122c of the rotation preventing part 122b so as to limit the rotation of the rotation preventing part 122b or the cap 120 about the longitudinal central axis C. Can be supported.
  • the dental implant system 100 of this embodiment may include a cap 120.
  • the cap 120 may be fastened to the upper end of the fixture 110 or the abutment 110b.
  • the inner circumferential surface 124 of the cap 120 may be disposed to face the insertion surface 112a provided on the abutment 110b.
  • the inner circumferential surface 124 of the cap 120 may be in close contact with the insertion surface 112a or may be disposed with a predetermined clearance.
  • the space between the inner circumferential surface 124 and the insertion surface 112a of the cap 120 is intended as a sealed space, and the inflow of foreign substances may be restricted through the sealing part 140, which will be described later. .
  • the inner circumferential surface 124 of the cap 120 may be formed to be inclined at a predetermined angle so as to correspond to the inclination of the insertion surface 112a. That is, in response to the insertion surface 112a of the abutment 110b forming the first inclination angle a1 with respect to the vertical direction, the inner peripheral surface 124 of the cap 120 has a third inclination angle a3 with respect to the vertical direction. ) Can be formed to be inclined to achieve.
  • the third inclination angle a3 may be formed at an angle equal to or corresponding to the first inclination angle a1.
  • a protrusion 122 may be provided on the inner upper surface of the cap 120.
  • the protrusion 122 may extend from the inner upper surface of the cap 120 toward the lower side by a predetermined degree.
  • the protrusion 122 is intended to be fastened to the groove 113 described above. That is, the protrusion 122 may be inserted and fastened into the groove 113 through the upper opening of the groove 113.
  • the protrusion 122 may include a support part 122a.
  • the support part 122a may be inserted into the groove part 133 to support the cap 120 against an external force (eg, lateral external force) applied to the cap 120.
  • the support part 122a may have a support surface 122c on an outer circumferential surface. The support surface 122c may be supported in contact with the insertion surface 112a of the groove part 113 described above.
  • the support surface 122c may be formed to be inclined at a predetermined angle. That is, the outer diameter of the support part 122a may be gradually decreased toward the lower side, and thus the support surface 122c may form a fourth inclination angle a4 with respect to the vertical direction.
  • the fourth inclination angle a4 of the support surface 122c may be the same as or at an angle corresponding to the second inclination angle a2 of the upper region 113a of the groove part 113 described above. Accordingly, the support surface 122c may be supported by forming a contact surface inclined at a predetermined angle with the circumferential surface 113c of the upper region 113a.
  • the fourth inclination angle a4 may be formed at an angle different from the third inclination angle a3.
  • the second inclination angle a2 or the fourth inclination angle a4 may be formed at an angle different from the first inclination angle a1 or the third inclination angle a3.
  • the second inclination angle a2 or the fourth inclination angle a4 may be formed to be larger than the first inclination angle a1 or the third inclination angle a3 by a predetermined degree. The difference in the inclination angle as described above enables the support force to be provided for loads or external forces in more various directions.
  • the protrusion 122 may include a rotation preventing portion (122b).
  • the rotation preventing portion 122b may be formed extending downward from the lower end of the support portion 122a. However, if necessary, the upper and lower positions of the rotation preventing part 122b and the support part 122a may be changed.
  • the rotation preventing part 122b may have at least one support surface for rotation of the cap 120 about the longitudinal central axis C.
  • the rotation preventing part 122b may have at least one support surface that is contact-supported with the lower region 113b of the groove part 113.
  • the rotation preventing part 122b may be formed in the shape of a polygonal column, and may be supported in contact with the lower region 113b of the groove part 113 formed in a shape corresponding thereto.
  • the rotation preventing part 122b may be formed in the shape of a square, hexagonal, octagonal column.
  • the support part 122a and the rotation prevention part 122b are integrated with the cap 120, but if necessary, the support part 122a or the rotation prevention part 122b may be formed in a separate and independent structure.
  • a method in which the protrusion 122 including the support part 122a and the rotation prevention part 122b is implemented in the form of one assembly member and is assembled to the cap 120, and the support part 122a is integrated with the cap 120 A method of forming and implementing only the rotation preventing portion 122b in the form of an assembly member and assembling it to the support portion 122a may be considered.
  • a coupling groove 121 may be formed on the outer circumferential surface of the cap 120.
  • the coupling groove 121 is for increasing the coupling force between the cap 120 and the crown 160, and may be formed to extend in an approximately circumferential direction along the outer circumferential surface of the cap 120, and a plurality of the cap 120 It may be densely arranged vertically on the outer circumferential surface.
  • the shape, arrangement, etc. of the coupling groove 121 may be appropriately changed as necessary, and are not limited thereto.
  • the coupling groove 121 is for coupling between the cap 120 and the crown 160, and may be appropriately omitted when the cap 120 and the crown 160 are integrated as shown below.
  • the cap 120 may be integrated with the crown 160.
  • the configuration of the cap 120 (such as the protrusion 122) described above may be implemented in a form integrated with the crown 160 at a corresponding position. This may have a shape similar to that of omitting the boundary between the cap 120 and the crown 160 as shown.
  • the dental implant system 100 of the present embodiment may include a buffer unit 150.
  • the buffer unit 150 may be mounted on the upper end of the fixture 110.
  • the buffer unit 150 is formed in a ring shape, and may be mounted around the outer circumference of the upper end of the fixture 110.
  • the buffer unit 150 may include an outer circumferential surface 152 disposed toward the inner circumferential surface 124 of the cap 120 and an upper side surface 151 disposed toward the inner upper surface of the cap 120. have.
  • the buffer unit 150 may include an elastic body partially or entirely so as to elastically support the fine fluctuation of the cap 120 or the crown 160.
  • the buffer unit 150 may be partially or entirely formed of silicon.
  • the dental implant system 100 of the present embodiment may include a separation prevention unit 130.
  • the separation prevention unit 130 may be fastened between the cap 120 and the fixture 110 to restrain the separation of the cap 120 from the fixture 110.
  • the separation preventing unit 130 may be mounted and disposed at a position spaced apart from the upper end of the fixture 110 at a predetermined interval downward.
  • the separation prevention unit 130 may be disposed at a position spaced from the above-described buffer unit 150 downward by a predetermined degree.
  • the departure prevention part 130 may be formed of a C-ring having elasticity.
  • the separation preventing unit 130 may be any one capable of properly restraining the separation of the cap 120, and the shape is not necessarily limited to the illustrated C-ring.
  • the departure prevention part 130 may be partially or entirely formed of titanium.
  • a first fixing groove 114 may be formed at a corresponding position of the fixing body 110 to which the separation prevention part 130 is fastened.
  • a second fixing groove 123 may be formed at a corresponding position of the cap 120 to which the separation prevention part 130 is fastened.
  • the first and second fixing grooves 114 and 123 may be disposed to face each other to form a fixing groove 131 for fastening the separation prevention part 130.
  • the lateral width W1 of the fixing groove 131 may be formed to be greater than the lateral thickness W2 of the separation prevention part 130 by a predetermined degree.
  • the lateral thickness W2 of the separation prevention part 130 may be formed to be smaller than the entire lateral width W1 of the fixing groove 131 by a predetermined amount.
  • the detachment preventing part 130 may be elastically deformed toward the first fixing groove 114 in order to insert and fasten the cap 120 into the fixture 110.
  • the separation preventing part 130 may be intended to be in close contact with the second fixing groove 123 by elasticity.
  • the separation prevention part 130 may be disposed between the first fixing groove 114 and the second fixing groove 123 in general. Accordingly, in such a state, the cap 120 may be restricted from being separated from the fixture 110 by the separation preventing unit 130.
  • the dental implant system 100 of the present embodiment may include a sealing unit 140.
  • the sealing part 140 may be disposed in the lower region of the insertion region 112. Alternatively, the sealing part 140 may be disposed below the above-described separation prevention part 130 at a predetermined interval.
  • the sealing part 140 is formed in a ring shape, and may be mounted and disposed between the outer circumferential surface of the fixture 110 and the inner circumferential surface 124 of the cap 120.
  • the sealing part 140 may be generally intended to be disposed on the lower side of the insertion surface 112a, and restrict the inflow of external foreign matter from the exposed area 111 into the gap between the cap 120 and the fixture 110. I can.
  • the sealing part 140 may be mounted and supported on the fixture 110 through a groove formed along the outer circumferential surface of the abutment 110b. However, if necessary, the sealing part 140 is mounted and supported through a groove formed along the inner circumferential surface 124 of the cap 120, or a separate part that is detachable from the fixture 110 or the cap 120 It may be implemented in a form or the like, and is not necessarily limited to what is illustrated.
  • the sealing part 140 may include an elastic body partially or entirely so as to have sufficient sealing force.
  • the sealing part 140 may be partially or entirely formed of silicon.
  • the dental implant system 100 as described above may be installed in the order in which the fixture 110 is placed in the alveolar bone of the person to be treated, and the cap 120 or the crown 160 is placed on the top of the fixture 110. .
  • the cap 120 or the crown 160 may be mounted and supported on the fixture 110 by the separation prevention unit 130.
  • the departure prevention part 130 may be intended to support an external force in the upper (departure) direction applied to the cap 120 or the crown 160 in general.
  • a transverse external force applied to the cap 120 or the crown 160, or an external force in which various directions are combined may be supported by the inclination of the insertion region 112 and the support part 122a.
  • a support surface can be secured against external forces in various directions.
  • the cap 120 or the crown 160 may be installed on the fixture 110 by omitting the use of an adhesive or using only a minimum amount of adhesive.
  • the use of an adhesive is omitted at the boundary with the fixture 110, the separation prevention part 130, the slope of the insertion area 112, and the slope of the support part 122a It may be installed on the fixture 110 by. Omission of such an adhesive may have advantages in the convenience of the procedure, the possibility of correction and supplementation after the procedure, and side effects due to the adhesive.
  • 2A is a longitudinal cross-sectional view of a dental implant system according to a second embodiment of the present invention.
  • 2B is an exploded longitudinal sectional view of the dental implant system shown in FIG. 2A.
  • the dental implant system 200 according to the second embodiment may be intended to be used for a plurality of defective teeth.
  • the selection of the dental implant system according to each embodiment may be made by the judgment of the practitioner, and the object to be used is not necessarily limited to those illustrated.
  • the dental implant system 200 of the second embodiment may include a fixture 210, a cap 220, a separation prevention part 230, and a sealing part 240.
  • the buffer unit 150 of the first embodiment is omitted.
  • the fixture 210 may include an implantable body 210a and an abutment 210b.
  • the implantation body 210a and the abutment 210b may be formed similarly to the corresponding configuration of the first embodiment described above.
  • the dental implant system 200 of the second embodiment is intended to be used for a plurality of missing teeth, and compared with the first embodiment described above, the first inclination angle of the insertion surface 212a formed on the abutment 210b ( a1) may be formed to a predetermined size. That is, in the second embodiment, the first inclination angle a1 of the insertion surface 212a may be formed to be larger than the first inclination angle a1 (refer to FIG. 1C) of the first embodiment described above.
  • the first inclination angle a1 as described above may be partially different in the direction or angle of each fixture 210, which may make it difficult to fasten the cap 220 or the crown. It was taken into account.
  • a groove part 213 may be formed in the center of the upper end of the abutment 210b.
  • the groove part 213 may have a circumferential surface 213c of an upper portion thereof in contact with the protrusion 222, and the circumferential surface 213c may have a second inclination angle a2.
  • This is similar to the circumferential surface 113c of the first embodiment described above.
  • the second inclination angle a2 may be formed to be larger than the second inclination angle a2 (refer to FIG. 1C) of the first embodiment described above.
  • the lower region 113b (see FIG. 1C) is omitted.
  • it is intended to be used for a plurality of missing teeth, because a separate structure for restricting the rotation of the cap 22 is not required.
  • the cap 220 may be fastened to the upper region of the abutment 210b.
  • the cap 220 may have a protrusion 222 on the inner upper surface.
  • the protrusion 222 may have only the support 222a. That is, the rotation preventing unit 122b (see FIG. 1C) of the first embodiment described above may be omitted. This corresponds to the omission of the lower region 113b in the groove 213.
  • the cap 220 may be formed to be inclined so that the inner circumferential surface 224 has a third inclination angle a3, which corresponds to the first inclination angle a1 of the insertion surface 212a.
  • the protrusion 222 or the support 222a may be formed to be inclined so that the support surface 222c has a fourth inclination angle a4, which is at the second inclination angle a2 of the groove 213 and the circumferential surface 213c. Corresponds.
  • the first and third inclination angles a1 and a3 may be formed differently from the second and fourth inclination angles a2 and a4, and preferably, the first and third inclination angles a1 and a3 are the second and fourth inclination angles a2 , may be formed to be smaller than a4) by a predetermined degree.
  • the separation prevention part 230 and the sealing part 240 may be formed similarly to the first embodiment described above.
  • FIG. 3 is a longitudinal sectional exploded view of a dental implant system according to a third embodiment of the present invention.
  • the dental implant system 300 according to the third embodiment may be intended to be used for a single missing tooth. This corresponds to the first embodiment described above.
  • a dental implant system 300 includes a fixture 310 including an implant 310a and an abutment 310b, and a cap 320 fastened to the abutment 310b. ) Can be included.
  • the fixture 310 and the cap 320 may be formed in the same or similar to the first embodiment.
  • the dental implant system 300 may include a separation prevention unit 330.
  • the departure prevention part 330 may be formed in the same or similar to the first embodiment.
  • the sealing unit 140, the buffer unit 150, and components corresponding thereto may be omitted.
  • FIG. 4 is a longitudinal sectional exploded view of a dental implant system according to a fourth embodiment of the present invention.
  • the dental implant system 400 according to the fourth embodiment may be intended to be used for a plurality of missing teeth. This corresponds to the second embodiment described above.
  • a dental implant system 400 includes a fixture 410 including an implantable body 410a and an abutment 410b, and a cap 420 fastened to the abutment 410b. ), it may include a separation preventing unit 430 for restraining the separation of the cap 420.
  • the fixture 410, the cap 420, and the separation preventing portion 430 may be formed in the same or similar to the corresponding components of the second embodiment described above.
  • the sealing unit 240 of the second embodiment and components corresponding thereto may be omitted.
  • FIG. 5 is a longitudinal sectional exploded view of a dental implant system according to a fifth embodiment of the present invention.
  • the dental implant system 500 according to the fifth embodiment may be intended to be used for a single missing tooth. This corresponds to the first embodiment described above.
  • a dental implant system 500 includes a fixture 510 including an implantable body 510a and an abutment 510b, and a cap 520 fastened to the abutment 510b.
  • a fixture 510 including an implantable body 510a and an abutment 510b, and a cap 520 fastened to the abutment 510b.
  • the dental implant system 500 may include a separation prevention unit 530 that restricts separation of the cap 520. This functionally corresponds to the departure prevention unit 130 of the first embodiment.
  • the departure prevention part 530 of the fifth embodiment may be composed of a protrusion 531 and a groove 532.
  • the protrusion 531 may extend in a ring shape along the outer circumferential surface of the abutment 510b, and the groove 532 may extend along the inner circumferential surface of the cap 520 to correspond thereto.
  • a groove may be provided on the inner circumferential surface of the cap 520, and a protrusion may be provided on the outer circumferential surface of the abutment 510b.
  • the protrusion 531 and the groove 532 are coupled to each other to limit the separation of the cap 520.
  • FIG. 6 is a longitudinal sectional exploded view of a dental implant system according to a sixth embodiment of the present invention.
  • the dental implant system 600 according to the sixth embodiment may be intended to be used for a plurality of defective teeth. This corresponds to the second embodiment described above.
  • a dental implant system 600 includes a fixture 610 including an implantable body 610a and an abutment 610b, and a cap 620 that is fastened to the abutment 610b.
  • a fixture 610 including an implantable body 610a and an abutment 610b, and a cap 620 that is fastened to the abutment 610b.
  • the dental implant system 600 may include a separation preventing unit 630 that restricts separation of the cap 620.
  • the separation prevention part 630 may include a protrusion 631 formed on the abutment 610b or the cap 620, and a groove 632 formed on the cap 620 or the abutment 610b to correspond thereto. This is similar to the fifth embodiment described above.
  • FIG. 7 is a longitudinal sectional exploded view of a dental implant system according to a seventh embodiment of the present invention.
  • the dental implant system 700 according to the seventh embodiment may be intended to be used for a plurality of defective teeth. This corresponds to the second embodiment described above.
  • a dental implant system 700 includes a fixture 710 including an implantable body 710a and an abutment 710b, and a cap 720 fastened to the abutment 710b.
  • a fixture 710 including an implantable body 710a and an abutment 710b, and a cap 720 fastened to the abutment 710b.
  • the dental implant system 700 may include a separation preventing unit 730 that restricts separation of the cap 720.
  • the departure prevention part 730 may include a ball 731 and an elastic body 732.
  • the ball 731 may be disposed on the outer circumferential surface of the abutment 710b so that a portion of the ball 731 is accommodated in the receiving groove 734.
  • the receiving groove 734 may extend from the outer circumferential surface of the abutment 710b toward the abutment 710b by a predetermined degree.
  • the elastic body 732 may be disposed inside the receiving groove 734 to elastically support the ball 731.
  • the ball 731 may be elastically supported outside the receiving groove 734 by the elastic body 732.
  • the elastic body 732 may have a predetermined elastic force and be capable of elastically supporting the ball 731, and may, for example, be composed of a compression spring as shown.
  • the ball 731 may be elastically coupled to the ball fastening groove 733 by an elastic body 732. Thereby, the cap 720 may be restricted from being separated.
  • the ball fastening groove 733 may be formed to extend in a circular ring shape along the inner circumferential surface of the cap 720.
  • the elastic body 732 may elastically support the ball 731 in a direction inclined at a predetermined angle a5 with respect to the horizontal direction.
  • the elastic body 732 forms an angle a5 of about 45 degrees with respect to the horizontal direction, and may elastically support the ball 731.
  • the receiving groove 734 accommodating the elastic body 732 may also be formed to be inclined at a corresponding angle.
  • the balls 731 and the elastic body 732 may be provided with a plurality of sets. That is, a plurality of balls 731 and an elastic body 732 corresponding thereto may be disposed along the outer circumferential surface of the upper end of the abutment 710b.
  • the ball 731 and the elastic body 732 may be provided with 3 to 5 sets along the outer circumferential surface of the abutment 710b.
  • the number of balls 731 and elastic bodies 732 is not necessarily limited thereto.
  • sealing part 150 buffer part

Landscapes

  • 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

La présente invention concerne un implant dentaire. Un aspect de la présente invention peut fournir un système d'implant dentaire comprenant : un dispositif de fixation implanté dans l'os alvéolaire; une butée fixée au dispositif de fixation; et une coiffe fixée à une zone d'insertion de l'extrémité supérieure de la butée, la coiffe comprenant une partie de support qui s'étend vers le bas à partir de la surface supérieure de l'intérieur de celle-ci, et est en contact avec et supportée par la surface circonférentielle interne d'une partie de rainure formée dans la butée, et la partie de support comprend une surface de support qui est formée de façon à être inclinée sur la surface circonférentielle externe de la partie de support, de telle sorte que la partie de support est en contact avec et supportée par la surface circonférentielle interne de la partie de rainure
PCT/KR2019/005770 2019-05-10 2019-05-14 Système d'implant dentaire WO2020230916A1 (fr)

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KR10-2019-0054821 2019-05-10
KR1020190054821A KR102323728B1 (ko) 2019-05-10 2019-05-10 치과용 임플란트 시스템

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EP4252701A4 (fr) * 2020-12-04 2024-05-08 Osstem Implant Co Ltd Butée prête à l'emploi personnalisée

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KR102383540B1 (ko) * 2021-06-16 2022-04-08 고찬중 크라운과 힐링 어버트먼트에 체결 가능한 임플란트용 인서트 유지 보호캡
KR102418007B1 (ko) * 2021-08-04 2022-07-06 장천석 인공치아와 어버트먼트 사이 공간을 밀폐하는 밀폐 링을 포함한 임플란트용 어버트먼트
KR102483796B1 (ko) * 2022-01-26 2023-01-03 주식회사 씨앤지치과기공소 치과 임플란트용 어버트먼트
KR102527940B1 (ko) 2022-10-11 2023-05-03 이노덴 주식회사 치과용 임플란트 구조물

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