WO2023094933A1 - 착탈형 치과용 임플란트 시스템 - Google Patents
착탈형 치과용 임플란트 시스템 Download PDFInfo
- Publication number
- WO2023094933A1 WO2023094933A1 PCT/IB2022/060982 IB2022060982W WO2023094933A1 WO 2023094933 A1 WO2023094933 A1 WO 2023094933A1 IB 2022060982 W IB2022060982 W IB 2022060982W WO 2023094933 A1 WO2023094933 A1 WO 2023094933A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inclined surface
- abutment
- implant system
- dental implant
- crown
- Prior art date
Links
- 239000004053 dental implant Substances 0.000 title claims abstract description 74
- 239000007943 implant Substances 0.000 claims abstract description 8
- 238000002513 implantation Methods 0.000 claims abstract description 8
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims description 28
- 230000008878 coupling Effects 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 230000004308 accommodation Effects 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 4
- 230000010485 coping Effects 0.000 description 4
- 229910001000 nickel titanium Inorganic materials 0.000 description 4
- 230000035876 healing Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 239000003479 dental cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010883 osseointegration Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/70—Tooth crowns; Making thereof
-
- 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
Definitions
- the present invention relates to a dental implant system, and more specifically, to a prosthetic appliance such as an artificial tooth, which can be easily attached or detached without forming a screw hole, and various shock events applied to the prosthetic appliance. It relates to a removable dental implant system capable of preventing a prosthesis from being detached from an abutment.
- a conventional dental implant system may include a fixture placed in alveolar bone, an abutment fixed to the fixture, and a prosthetic appliance bonded to the abutment.
- the prosthetic appliance is an artificial tooth and is integrally coupled to the abutment by an adhesive such as dental cement, and a screw hole is formed in the prosthetic appliance so that the prosthetic appliance can be fixed to or separated from the fixture together with the abutment.
- Korean Patent Registration No. 10-0537219 discloses a method of combining the abutment and prosthesis with cement in a state where the abutment is placed on a fixture, and using a screw hole formed in the prosthesis.
- problems such as repair or replacement of artificial teeth, abutments, fixtures, etc. may occur in the dental field due to, for example, a fracture of a connecting screw or various other reasons.
- Korean Patent Registration No. 10-2323729 discloses a dental implant system.
- the dental implant system has a screw hole formed vertically in the cap, and a C-ring-shaped breakaway prevention part and a ring-shaped sealing part are provided on the outer surface of the abutment to prevent complete adhesion between the cap and the abutment. can do.
- the separation prevention part and the sealing part are formed along the circumference of the outer surface of the abutment and occupy a relatively large area, sufficient surface contact is formed when the abutment is formed in a small size with a dimension of 5 mm or less. I can't. Surface contact between the abutment and the cap cannot be formed unless the release prevention part is made without errors. For example, if the separation prevention part is slightly large or twisted, a gap is formed between the abutment and the cap, and if the separation prevention part is minutely small, the coupling between the abutment and the cap may be shaken.
- the present invention can combine an abutment and a prosthesis only by surface contact without forming a screw hole in the prosthesis, and can easily separate the prosthesis from the structure of the abutment rather than the fixture for repair or replacement, etc.
- a removable dental implant system capable of The present invention provides a detachable dental implant system capable of maximally improving bonding force in bonding using surface contact.
- the present invention provides a detachable dental implant system capable of preventing momentary lifting of a prosthesis in addition to bonding force by surface contact.
- the present invention is a detachable type that facilitates separation and installation of a prosthesis even when a separate prosthesis does not move in a direction consistent with the axial direction of the abutment even when the fixture is tilted or two or more fixtures are connected by a bridge.
- a dental implant system is provided.
- the detachable dental implant system has an implantation part to be placed in the alveolar bone and an upper part of the implantation part and has a truncated external inclined surface and an open interior space.
- an implant body including an abutment part providing a crown and a crown medium that is interposed between the abutment part and the prosthesis and fixes the prosthesis to the abutment part by itself, and the crown medium is in close contact with the external inclined surface.
- a space for accommodating the abutment part and a distance extending downward from the ceiling of the accommodation space to enter the inner space of the abutment part and the end portion of the abutment part being fixed Including the fixing part, the surface contact between the outer inclined surface and the first close inclined surface and the fixing between the abutment part and the distance fixing part may form a resistance torque that prevents rotation of the crown medium with respect to the abutment part.
- the crown medium and the abutment part can be combined by surface contact and distance fixing part, and the distance fixing part limits the coupling distance between the crown medium and the abutment part, so that the distance between the external slope and the first close slope It can prevent agitation. Therefore, the crown medium and the abutment part can be bound together without cement or adhesive, and the prosthesis can be separated from the abutment part without forming a screw hole in the prosthesis. can be conjoined.
- the fixture and the abutment part may be coupled by screw coupling, and the coupling method may be coupled in various ways such as an internal method or an external method.
- the outer inclined surface may be formed in a truncated cone shape, where the truncated cone shape may be understood as a concept including a truncated cone or truncated pyramid shape.
- an inverted truncated inner inclined surface may be formed as an inner wall.
- a ring-shaped protrusion may be formed around the distance fixing part on the ceiling of the crown medium, and the ring-shaped protrusion may provide a second close-fitting inclined surface in surface contact with the inner inclined surface as an outer surface.
- the outer inclined surface and the inner inclined surface may be formed at different heights, and the lower end of the inner inclined surface may be positioned higher than the lower end of the external inclined surface.
- the hooking position between the inner inclined surface and the second close inclined surface is different from the hooked position between the outer inclined surface and the first close inclined surface, it is possible to resist mutual separation.
- the height (hl) from the upper end of the abutment part to the lower end of the inner inclined surface may be shorter than the height (h2) from the lower end of the inner inclined surface to the lower end of the external inclined surface.
- the angle of the external inclined surface (01) and the internal inclined surface angle (02) with respect to the central axis of the abutment part can be formed from 4 degrees to 15 degrees.
- the slope angles (01, 02) have opposite directions but can be understood as positive numbers, and if the angle is less than 4 degrees, the difficulty of the system is excessively increased because the prosthesis and abutment part must be combined almost only in the axial direction. If the angle is greater than 15 degrees, the bonding force between the prosthetic appliance and the abutment part is weakened, so that the prosthetic appliance cannot work even with a small external force. It can be easily separated from the abutment part.
- the angle of the inclined plane is based on the cross section passing through the central ridge of the abutment part, and can be understood as an acute angle to the central ridge regardless of the top and bottom.
- the distance fixing unit may be provided in a column shape having protrusions or grooves formed at an end thereof, and grooves or protrusions engaged with the protrusions or grooves of the distance fixing unit may be formed in the inner space.
- the distance fixing unit may be provided in a cylindrical shape with an elastic leg formed at an end thereof, a protrusion formed at an end of the elastic leg, and a groove engaged with the protrusion of the elastic leg may be formed on an inner wall of the inner space.
- a female screw part can be formed in the lower part of the inner space below the groove that engages with the elastic leg, and when temporarily fixing the impression coping, etc. can
- a ceiling inclined surface having an inclined angle smaller than the angle ( 0 1 ) of the external inclined surface may be further formed below the external inclined surface.
- the removable dental implant system of the present invention does not permanently bond the prosthetic appliance and the abutment part, and does not use a screw to connect the prosthetic appliance and the abutment part, so there is no need to form a screw hole in the prosthetic appliance. does not exist.
- the detachable dental implant system of the present invention can easily separate the prosthesis from the abutment part and prevent the prosthesis from being separated due to an unexpected event. There should be. To this end, it can be achieved for that purpose by using the coupling by the three-dimensional surface contact of the present invention and the distance limit using the distance fixing unit.
- the distance fixing part can be combined with the crown mediator or integrally formed to produce a small size of about 5mm, such as the height and width of the crown mediator. Since the crown mediator can be manufactured in a small size, it can be applied to implants of small teeth such as front teeth.
- the detachable dental implant system of the present invention can form a small crown mediator due to the inner and outer slopes and the distance fixing part, and can improve the bonding force using surface contact as much as possible by limiting the distance by the distance fixing part.
- the present invention provides a detachable dental implant system capable of preventing instantaneous lifting of a prosthesis in addition to bonding force by surface contact.
- FIG. 1 is a view for explaining a removable dental implant system according to an embodiment of the present invention.
- FIG. 2 is a view for explaining a cross section of the detachable dental implant system of FIG. 1 .
- FIG. 3 is a view for explaining a coupling structure of the removable dental implant system of FIG. 1 .
- 4 and 5 are views for explaining a coupling process of the detachable dental implant system of FIG. 1 .
- FIG. 6 is a view for explaining the effect of the removable dental implant system of FIG. 1 .
- 7 is a view for explaining a crown mediator of a removable dental implant system according to an embodiment of the present invention.
- FIG. 8 is a view for explaining a coupling process of the detachable dental implant system using the crown mediator of FIG. 7 .
- FIG. 9 is a view for explaining the effect of the removable dental implant system of FIG. 8 .
- 10 is a view for explaining a detachable dental implant system according to an embodiment of the present invention.
- FIG. 11 is a view for explaining a cross section of the detachable dental implant system of FIG. 10 .
- FIG. 12 is a view for explaining a coupling structure of the detachable dental implant system of FIG. 10 .
- FIG. 13 is a view for explaining a coupling process of the detachable dental implant system of FIG. 10 .
- 14 to 16 are views for explaining other use cases of the removable dental implant system according to an embodiment of the present invention.
- FIG. 17 is a view for explaining a detachable dental implant system according to an embodiment of the present invention.
- 18 is a view for explaining a detachable dental implant system according to an embodiment of the present invention.
- 19 is a view for explaining a detachable dental implant system according to an embodiment of the present invention.
- FIG. 20 is a view for explaining a cross section of the detachable dental implant system of FIG. 19 .
- FIG. 21 is a view for explaining a coupling structure of the detachable dental implant system of FIG. 19 .
- FIG. 22 is a view for explaining a coupling process of the detachable dental implant system of FIG. 19 .
- FIG. 1 is a view for explaining a detachable dental implant system according to an embodiment of the present invention
- FIG. 2 is a view for explaining a cross-section of the detachable dental implant system of FIG. 1
- FIG. 4 and 5 are views for explaining a coupling process of the removable dental implant system of FIG. 1, and FIG.
- the removable dental implant system 100 includes a fixture 110, an abutment 120 and a crown mediator 140 as an implantation part. can do.
- the fixture 110 is a structure to be placed in the alveolar bone, and when the fixture 110 is placed, the crown medium 140 integrally joined with the abutment 120 and the prosthesis 20, which is an artificial tooth, to the top thereof ) can be fixed.
- the fixture 110, the abutment 120, and the crown mediator 140 may be formed using a titanium material, and the prosthesis 20 may be formed using a composite resin or ceramic.
- the abutment 120 may be coupled with the fixture 110 in an internal manner, and the crown mediator 140 may be coupled to the upper part with the body 126 tapered downward. There is, and a male screw 128 may be formed at the bottom. Since the fixture 110 is placed in the alveolar bone, it can be affected by various variables depending on the patient's physical condition or surgical conditions, and even after being placed, the position or angle at which it is placed can be changed even in the process of being stabilized. For example, the condition of osseointegration of the fixture may be changed by the occlusal force. Therefore, in this embodiment, the abutment 120 may be provided separately, and after the fixture 110 is placed, the abutment 120 may be fixed to the fixture 110 by screwing.
- the upper part of the abutment 120 may provide a horn-shaped outer inclined surface 122 and an inner space 130 with an open top.
- the space is a space for the screw to pass through the prosthesis, whereas in the present embodiment, the internal space 130 is the distance fixing part It can be used as a space for maintaining the distance between the crown medium 140 and the abutment 120 by entering the 160.
- the crown mediator 140 may form an accommodation space 145 open to the bottom like a cap, and its outer surface may be bonded to the prosthesis 20.
- a plurality of irregularities 146 may be formed on the outer surface of the crown mediator 140 in order to strengthen the bonding with the prosthesis 20.
- the crown medium 140 can accommodate the upper part of the abutment 120 Accommodation space can be provided.
- the accommodation space may form a first close-fitting inclined surface 142 that forms surface contact with the outer inclined surface 122 of the abutment 120, and a distance high extending downward in the center of the ceiling of the receiving space.
- a government 160 may be formed.
- the distance fixing part 160 may be integrally formed or combined with the crown mediator 140, and its end may have a relatively large dimension and be formed bluntly.
- a space in which the end of the distance fixing part 160 can be accommodated may be formed at the bottom of the inner space 130, and an elastic piece 134 capable of fixing the end of the distance fixing part 160 may be formed at the entrance of the space. this can be provided. 4 and 5, the process before and after the end of the distance fixing part 160 is coupled to the elastic piece 134 is shown, and the end of the distance fixing part 160 passes through the elastic piece 134.
- the external inclined surface 122 of the abutment 120 and the first close inclined surface 142 of the crown medium 140 can maintain a state in close contact with each other by a fixing force other than gravity.
- the outer inclined surface 122 and the first close inclined surface 142 are formed in a truncated cone shape, but may be formed in a truncated pyramid shape in other embodiments.
- the outer inclined surface 122 and the first close-fitting inclined surface 142 maintain a state of full contact, and unlike the prior art, there is no element that hinders the close contact of the two inclined surfaces, such as a C-ring, sealing, or packing, on all sides. You can stay in contact.
- a sealing inclined surface 123 formed at an inclined angle smaller than the angle (01) of the external inclined surface 122 may be further formed at the lower part of the external inclined surface 122, and the sealing inclined surface 123 is also formed on the first close inclined surface 142.
- a vertical surface or an inclined surface corresponding to may be formed.
- the outer inclined surface 122 forms an inclined angle of about 4 to 15 degrees with respect to the central axis of the abutment 120, but the sealing inclined surface 123 has a smaller angle than the external inclined surface 122 or about 4 degrees. It is possible to form an inclination angle of less than a degree.
- the sealing inclined surface 123 is formed at the lower part of the external inclined surface 122, even if it is formed at an inclined angle of about 4 degrees or less, the coupling between the crown medium 140 and the abutment 120 may not be disturbed, and external foreign substances It is possible to prevent inflow between the crown medium 140 and the abutment 120. In addition, minute fluctuations between the crown mediator 140 and the abutment 120 can be reduced.
- the crown mediator 140 and the abutment 120 can maintain a combined state by the surface contact of the inclined surface facing the front, and the close contact between the precisely machined external inclined surface 122 and the first close inclined surface 142 , it is possible to form very close surface contact by friction or negative pressure.
- an event that may occur in the implant system may be caused by repeated chewing (a), and may also be caused by pushing or twisting between teeth (b).
- the eccentric force (F) acts on the top of the prosthesis 20, the torque is centered on the end (0) between the adjacent crown mediator 140 and the abutment 120. may occur.
- the resistive torque between the crown medium 140 and the abutment 120 at the opposite point (A) can be expressed as fn*di there is. If it is assumed that there is no distance fixing unit 160, peeling will not occur to the extent that the resistance torque (fn * di) can overcome the event torque (F * Di) generated, but the event torque (F * Di) Peeling may occur if the resistive torque ( fn*di) is greater than the maximum value. In addition, if momentary lifting occurs between the crown mediator 140 and the abutment 120 due to a sudden shock or repeated load, the prosthesis 20 may be taken off together with the crown mediator 140 in vain.
- the distance fixing part 160 can limit the axial movement of the abutment 120, the momentary lifting between the crown medium 140 and the abutment 120 due to sudden impact or repeated load You can prevent this from happening.
- the resistance torque for the event torque (F*Di) is the difference between the resistance torque (fn*di) due to the surface contact of the inclined surface and the resistance torque (fi2*d2) due to the distance fixing unit 160. Since it is formed as a sum, peeling of the prosthesis 20 can be prevented. Referring to (b) of FIG. 6 , it can be assumed that the same force (F) acts on the side of the prosthesis 20 rather than on the top.
- the event torque (R2) due to the eccentric force (F) can be expressed as F*D2, and a relatively larger event torque (F*D2) can be applied.
- torque may be generated around the far end (0) between the crown mediator 140 and the abutment 120.
- peeling will not occur to the extent that the resistance torque (f21*dl) can overcome the event torque (F*D2) generated, but a relatively large event torque (F* D2) is applied, it may not be easy to overcome the event torque (F*D2) with the resistance torque ( f21*dl).
- the distance fixing part 160 can limit the axial movement of the abutment 120, Therefore, it is possible to prevent momentary lifting between the crown mediator 140 and the abutment 120 due to sudden impact or repeated load.
- the resistance torque for the event torque (F*D2) is the difference between the resistance torque (f2i*di) due to the surface contact of the inclined surface and the resistance torque (f22*d2) due to the distance fixing part 160. Since it is formed as a sum, peeling of the prosthesis 20 can be effectively prevented.
- Stable coupling between the abutment 120 and the crown medium 140 utilizes the inner inclined surface 132 in the inner space 130 of the abutment 120, and the second close inclined surface on the crown medium 140 By forming (152), it can be further strengthened.
- 7 is a view for explaining a crown mediator of the removable dental implant system according to an embodiment of the present invention
- FIG. 8 is a view for explaining a coupling process of the removable dental implant system using the crown mediator of FIG. 7
- FIG. 9 is a view for explaining the effect of the detachable dental implant system of FIG. 8 .
- the crown mediator 140 ' forms a ring-shaped protrusion 150 around the distance fixing part 160 formed in the accommodation space 145, and the ring-shaped protrusion
- the outer surface of 150 may be formed as a second close-inclined surface 152 corresponding to the inner inclined surface 132 of the abutment 120 .
- an inverted truncated inner inclined surface 132 may be formed as an inner wall, and a ring-shaped protrusion around the distance fixing part 160 so as to contact the inner inclined surface 132. (150) can be formed.
- a more stable coupling can be formed by surface contact between the outer inclined surface 122 and the first close inclined surface 142 and surface contact between the inner inclined surface 132 and the second close inclined surface 152 .
- the outer inclined surface 122 and the inner inclined surface 132 may be formed at different heights.
- the lower end of the inner inclined surface 132 may be positioned higher than the lower end of the external inclined surface 122 . Therefore, as shown in FIG. 9, the hooking position (C) between the inner inclined surface and the second close inclined surface is different from the hooking position (A) between the outer inclined surface and the first close inclined surface, so mutual separation can be resisted.
- the height (hi) from the upper end of the abutment 120 to the lower end of the inner inclined surface may be shorter than the height (012) from the lower end of the inner inclined surface to the lower end of the external inclined surface.
- the angle (01) of the outer inclined surface and the angle (02) of the inner inclined surface with respect to the central axis of the abutment preferably, the two angles (01, 02) can be formed equal, but the central axis of the abutment
- the angle of the external inclined surface (01) and the angle of the internal inclined surface (02) can be formed with a deviation of about 3 degrees.
- the angle (01) of the outer inclined surface and the angle (02) of the inner inclined surface may be formed in the range of about 4 degrees to 15 degrees.
- the angles of the inclined surfaces (01, 0 2) are opposite in direction but can be understood as positive numbers, and if the angle is less than 4 degrees, the prosthesis 20 and the abutment 120 must be coupled only in the axial direction. Therefore, the difficulty of the system may increase excessively, and if the angle is greater than 15 degrees, the bonding force due to the surface contact between the prosthesis 20 and the abutment 120 is weakened, so that the prosthesis 20 does not work even with a very small external force.
- the resistance torque for the event torque (F*Di) is the resistance torque ( f n *di), the resistive torque (fi2*d2) by the distance fixing part 160 at point B, and the resistive torque (fl3*d3) due to surface contact between the inner inclined surface and the second close inclined surface at point C Since it is formed, peeling of the prosthesis 20 can be more stably prevented.
- the resistance torque for the event torque (F*D2) is resistance due to surface contact between the external inclined surface and the first close inclined surface at point A.
- FIG. 10 is a view for explaining a detachable dental implant system according to an embodiment of the present invention
- FIG. 11 is a view for explaining a cross section of the detachable dental implant system of FIG. 10, and FIG.
- FIG. 13 is a diagram for explaining the coupling process of the detachable dental implant system of FIG.
- the plant system 200 may include a fixture 210 , an abutment 220 and a crown mediator 240 .
- the abutment 220 may be coupled with the fixture 210 in an internal manner
- the crown medium 240 may be coupled to the upper part with the tapered body 226 as the center, and to the lower part.
- a male thread 228 may be formed.
- the abutment 220 may be provided separately, and after the fixture 210 is placed, the abutment 220 may be fixed to the fixture 210 by screwing.
- the upper part of the abutment 220 may provide a cone-shaped outer inclined surface 222 and an inner space 230 with an open top.
- the inner space 230 may be used as a space for maintaining the distance between the crown medium 240 and the abutment 220 by entering the distance fixing unit 260 .
- the crown mediator 240 may form an accommodation space open to the bottom like a cap, and may be bonded to the prosthesis 20 on the outside.
- the crown medium 240 provides an accommodation space capable of accommodating the upper part of the abutment 220, and the outer slope 222 of the abutment 220 is in full surface contact in the accommodation space.
- a first close-fitting inclined surface 242 is formed, and a distance fixing part 260 fixed by an interference fit to the ring-shaped protrusion 250 may be fixed downward at the center of the ceiling of the accommodation space.
- the distance fixing part 260 is formed in a cylindrical shape as a whole, and includes 2 to 6, preferably 4, branched elastic legs 262 at the bottom, and can be provided with elastic deformation.
- a protrusion 264 may be formed outward at an end of the elastic leg 262, and a cylindrical groove 234 is formed on the inner wall of the inner space 230 corresponding to the protrusion 264 of the elastic leg 262. It can be.
- the distance fixing part 260 is made of nickel-titanium having high elasticity.
- the crown medium 240 forms a ring-shaped protrusion 250 in the center of the ceiling, and the ring-shaped protrusion 250 fixes the distance fixing part 260 to the inside, while to the outside may form the second close-inclined surface 252 .
- the abutment 220 has the same inclined angle as the second close inclined surface 252 toward the upper part of the inner wall of the inner space 230. , can be formed as an inclined plane.
- a hexa-shaped groove may be formed on the inner wall of the inner space 230, and when the abutment 220 is fixed to the fixture 210, a hexa-shaped tool is bound to the inner space 230 to form the abutment
- the ment 220 may be fixed.
- a female screw portion 236 may be formed below the circumferential groove 234 in the inner space 230 .
- the female screw part 236 can be used for temporarily fixing the corresponding part by using a screw-type coupling instead of a distance fixing part.
- the outer inclined surface 222 and the inner inclined surface 232 of the abutment 220 can form surface contact with the first close inclined surface 242 and the second close inclined surface 252, respectively.
- the elastic legs 262 of the lee fixing part 260 may enter along the inner wall of the inner space 230 and be bound to the groove 234 while being restored in the circumferential groove 234 .
- the inner inclined surface 232 of the inner space 230 may be provided in an inverted truncated shape, and may be formed to have a predetermined inclination angle 02 with respect to the central axis of the abutment 220.
- the end of the distance fixing part 260 is formed as an elastic leg 262, so that the assembly of the prosthesis 20 and the crown mediator 240 can enter the abutment 220 in a slightly inclined direction from the axis. , while the elastic leg 262 is deformed within an allowable range, it is possible to ride the inner wall of the inner space 230 and enable stable coupling.
- the outer inclined surface 222 and the inner inclined surface 232 of the abutment 220 are connected to the first close inclined surface 242 and the second close inclined surface 252 of the crown medium 240 by the distance fixing unit 260. It can maintain a stable close-fitting state.
- a ceiling inclined surface formed at an inclined angle smaller than the angle (01) of the external inclined surface 222 may be further formed below the external inclined surface 222, and a vertical surface or an inclined surface corresponding to the sealing inclined surface is also formed on the first close inclined surface 242.
- the outer inclined surface 222 forms an inclined angle of about 4 to 15 degrees with respect to the central axis of the abutment 220, but the sealing inclined surface forms a smaller angle than the external inclined surface 222 or an inclined angle of about 4 degrees or less. can do.
- 14 to 16 are views for explaining other usage examples of the detachable dental implant system according to an embodiment of the present invention.
- the prosthesis 30 connecting the crown mediators 240 corresponding to each of them with a bridge can be manufactured. all.
- two fixtures 210 are placed in the alveolar bone, and originally, it is desirable to be placed in parallel and perpendicular to each other, but due to some variable or intention, it can be assumed that the fixtures 210 are spread in opposite directions to each other.
- the bridge prosthesis 30 and the crown mediator 240 can access through the external inclined surface 222, and the end of the elastic leg 262 of the distance fixing part 260 is the abutment 220 ) From the end of the inner inclined surface 232, it is possible to enter the inside.
- the elastic leg 262 located inside is partially deformed like a bow to enter along the inner inclined surface 232 and the inner wall of the inner space. And, as shown in FIG.
- the structure of the distance fixing part and the corresponding elastic piece or elastic groove can be formed in various ways.
- the elastic structure of the distance fixing unit of FIG. 12 may be applied to the elastic piece of FIG. 8 .
- 17 is a view for explaining a detachable dental implant system according to an embodiment of the present invention.
- the elastic piece 134' according to this embodiment may be formed in a cylindrical shape, a plurality of elastic legs may be formed on the top, and protrusions may be formed inward of the elastic legs.
- the elastic piece 134' may be fixed inside the abutment 120 in an interference fit manner, and a female screw portion 136' may be further formed below the fixed position of the elastic piece 134'. there is.
- the female screw part 136' can be used for temporarily fixing a healing cap or an impression coping.
- the distance fixing part 160 may form a distance fixing and close contact between the crown mediator 140' and the abutment 120 while being inserted into the elastic piece 134'.
- the first close inclined surface 142 and the second close inclined surface 152 of the crown medium 140' are the outer inclined surface of the abutment 120.
- 18 is a view for explaining a detachable dental implant system according to an embodiment of the present invention. As shown in FIG.
- the removable dental implant system may include a fixture 210', an abutment 220', a crown mediator 240, a ring-shaped protrusion 250, and a distance fixture 260.
- Surface contact between the inclined surface 222 and the first close inclined surface 242 and surface contact between the inner inclined surface 232 and the second close inclined surface 252 may be used.
- the fixture 210 'and the abutment 220' can be coupled in an external manner using a hexagonal protrusion, and even if the external manner of coupling is formed, the surface contact and distance of the inclined surface are high You can form government distance limit unions.
- FIG. 19 is a view for explaining a detachable dental implant system according to an embodiment of the present invention
- FIG. 20 is a view for explaining a cross-section of the detachable dental implant system of FIG. 19
- FIG. 21 is a view of FIG. It is a view for explaining the coupling structure of the detachable dental implant system
- FIG. 22 is a view for explaining the coupling process of the removable dental implant system of FIG.
- the detachable dental implant system 300 includes an implant body 310 in which an implantation part 315 and an abutment part 320 are integrally provided. ) and a crown mediator (340).
- the abutment part 320 may be formed on top of the placement part 315, and the crown mediator 340 may be coupled to the top.
- the abutment part 320 may provide a cone-shaped outer inclined surface 322 and an inner space 330 with an open top.
- the inner space 330 may be used as a space for maintaining the distance between the crown mediator 340 and the abutment part 320 by entering the distance fixing part 360 .
- the crown mediator 340 may form an accommodation space open to the bottom like a cap, and may be bonded to the prosthesis 20 on the outside. 20, the crown medium 340 provides an accommodation space capable of accommodating the upper part of the abutment part 320, and the outer slope 322 of the abutment part 320 and the entire surface in the accommodation space.
- a first close-fitting inclined surface 342 forming surface contact is formed and fixed to the ring-shaped protrusion 350 in the center of the ceiling of the accommodation space with an interference fit.
- Lee fixing part 360 may be fixed downward.
- the distance fixing part 360 is formed in a cylindrical shape as a whole, and includes 2 to 6, preferably 4, branched elastic legs 362 at the bottom, and may be provided with elastic deformation.
- a protrusion 364 may be formed at an end of the elastic leg 362 outwardly, and a cylindrical groove 334 is formed on the inner wall of the inner space 330 corresponding to the protrusion 364 of the elastic leg 362. It can be.
- the distance fixing part 360 may be formed using nickel titanium (Ni-Ti) having high elasticity. 22
- the crown medium 340 according to this embodiment forms a ring-shaped protrusion 350 in the center of the ceiling, and the ring-shaped protrusion 350 fixes the distance fixing part 360 to the inside, while to the outside. may form a second close contact inclined surface (352).
- the abutment part 320 has the same inclined angle as the second close-inclined surface 352 toward the upper part of the inner wall of the inner space 330. , can be formed as an inclined plane.
- a hexa-shaped groove may be formed on the inner wall of the inner space 330, and when fixing the abutment body 310, an additional hexa-shaped tool may be used.
- hex or polygonal protrusions may be further formed on the lower part of the second close contact inclined surface 352 corresponding to the hexa-shaped groove.
- Hexa or polygonal protrusions are bound to the hexa-shaped grooves, so that the crown mediator 340 and the prosthetic part can function as a precise seating or rotation restriction.
- a female screw portion 336 may be formed below the circumferential groove 334 in the inner space 330 .
- the female screw part 336 can be used for temporarily fixing the corresponding part by using a screw-type coupling instead of a distance fixing part.
- the outer inclined surface 322 and the inner inclined surface 332 of the abutment part 320 can form surface contact with the first close inclined surface 342 and the second close inclined surface 352, respectively,
- the elastic legs 362 of the distance fixing part 360 may enter along the inner wall of the inner space 330 and be bound to the circumferential groove 334 while being restored.
- the inner inclined surface 332 of the inner space 330 may be provided in an inverted truncated cone shape and may be formed to have a predetermined inclination angle 02 with respect to the central axis of the abutment part 320 .
- the end of the distance fixing part 360 is formed as an elastic leg 362 so that the assembly of the prosthesis 20 and the crown mediator 340 can enter the abutment part 320 in a slightly inclined direction from the axis.
- the elastic leg 362 may be deformed within an allowable range while riding on the inner wall of the inner space 330 to enable stable coupling.
- the outer inclined surface 322 and the inner inclined surface 332 of the abutment part 320 by the distance fixing part 360 are the first close inclined surface 342 and the second close inclined surface 352 of the crown medium 340 can maintain a stable adherence to the These inclined surfaces maintain full contact, and unlike the prior art, they can maintain contact on all surfaces without elements that hinder the close contact of the two inclined surfaces, such as C-rings, sealings, or packings.
- a sealing inclined surface formed at an inclined angle smaller than the angle (01) of the external inclined surface 322 may be further formed below the external inclined surface 322, and a vertical surface or inclined surface corresponding to the sealing inclined surface is also formed on the first close inclined surface 342. can be formed.
- the outer inclined surface 322 forms an inclined angle of about 4 to 15 degrees with respect to the center of the abutment part 320, but the sealing inclined surface has a smaller angle than the external inclined surface 322 or an inclined angle of about 4 degrees or less.
- crown medium 142 first close inclined surface
- Ring-shaped protrusion 152 Second close-inclined surface
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial 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)
- Orthopedic Medicine & Surgery (AREA)
- Dental Prosthetics (AREA)
Abstract
Description
Claims
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CN202280077502.7A CN118302131A (zh) | 2021-11-24 | 2022-11-15 | 可拆卸牙科用种植牙系统 |
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KR1020210163846A KR102418760B1 (ko) | 2021-11-24 | 2021-11-24 | 착탈형 치과용 임플란트 시스템 |
KR10-2021-0163846 | 2021-11-24 | ||
KR10-2022-0060732 | 2022-05-18 | ||
KR1020220060732A KR102638571B1 (ko) | 2022-05-18 | 2022-05-18 | 착탈형 치과용 임플란트 시스템 |
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