US20210267727A1 - Dental Implant System - Google Patents
Dental Implant System Download PDFInfo
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- US20210267727A1 US20210267727A1 US17/323,446 US202117323446A US2021267727A1 US 20210267727 A1 US20210267727 A1 US 20210267727A1 US 202117323446 A US202117323446 A US 202117323446A US 2021267727 A1 US2021267727 A1 US 2021267727A1
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- Prior art keywords
- dental implant
- abutment
- expansion
- cement
- bore
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- 239000004053 dental implant Substances 0.000 title claims abstract description 71
- 239000004568 cement Substances 0.000 claims abstract description 26
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 229910000510 noble metal Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000007943 implant Substances 0.000 description 39
- 210000000988 bone and bone Anatomy 0.000 description 17
- 230000000295 complement effect Effects 0.000 description 3
- 210000002050 maxilla Anatomy 0.000 description 3
- 208000006386 Bone Resorption Diseases 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 206010065687 Bone loss Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 230000024279 bone resorption Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 210000004373 mandible Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- A61C8/0048—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
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0056—Connecting devices for joining an upper structure with an implant member, e.g. spacers diverging in the apical direction of the implant or 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
- A61C8/0062—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
- A61C8/0065—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
- A61C8/0018—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
- A61C8/0018—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
- A61C8/0037—Details of the shape
Definitions
- the present invention relates to dental implants and, more specifically, to a dental implant system with a locking abutment.
- Dentures have the disadvantage of not adequately loading their supporting bone (such as the mandible for lower dentures and the maxilla for upper dentures). An unloaded supporting bone experiences very little strain. When the supporting bone lacks a minimum level of strain, bone resorption occurs. This results in shrinkage of the supporting bone and can further result in related health and aesthetic problems.
- Osteointegrated endosteal implants are alloplastic materials surgically inserted into a residual bony ridge to serve as prosthodontic foundations. Such implants serve as platforms for prosthetic devices.
- the introduction of osteointegrated dental implants has given edentulous and partially edentulous patients a more effective means to restore their ability to chew and to improve their appearance.
- osteointegrated implants functionally load the mandibular (or maxillary) bone into which they are implanted, thereby inducing strain in the bone under normal functional loading. Bone loss and resorption, which commonly occur with dentures, can thereby be minimized or avoided by maintaining a proper loading profile on the bone.
- a plate form implant is characterized by a flat, narrow plate typically placed in a horizontal dimension of the mandibular or maxillary bone.
- Root form implants are designed to be placed in a vertical column of bone. Root form implants include two types: cylinder-type root form implants, which are non-threaded cylinders pressed into holes drilled into the receiving bone, and screw-type root form implants, having a threaded outer surface which is screwed into a hole drilled into the receiving bone.
- a typical root form dental implant system employs a dental implant that is placed in a prepared site in the underlying bone.
- a disposable mount is used to provide a connection to an insertion tool used to place the implant into the bone. If the implant is a threaded implant, the mount is typically a removable extension of the implant that provides a hex nut-type surface for engagement with a socket used for screwing the implant into the prepared site. Once the implant is engaged in the site, the mount is removed and discarded. A cover screw is affixed to the top of the implant and the bone surrounding the prepared site is allowed to grow into the implant for several months, thereby securing the implant to the bone.
- the cover screw is removed and an abutment is affixed to the implant.
- An impression of the implant with the abutment and the surrounding teeth is taken and a dental prosthesis, such as a crown, is constructed using the impression as a model of the area of the patient's mouth surrounding the implant site.
- the dental prosthesis is then affixed to the abutment with cement, or other affixing means.
- the abutment acts as a platform for securing a dental prosthesis to the implant.
- a dental prosthesis securing system for securing a dental prosthesis to a dental implant.
- An abutment for cement has a base surface for placement against the dental implant. The base surface does not define an engagement shape that requires alignment with a complementary shape defined by the implant.
- a securing mechanism secures the abutment for cement to the dental implant.
- the invention is a dental implant system, for implantation into a jawbone of a patient that includes a dental implant fixture.
- An internal locking collar extends upwardly from the dental implant fixture.
- the internal locking collar defines a central bore extending downwardly into the dental implant fixture.
- a first slot locking mechanism canal has a first portion, terminating in an end, that is parallel to the central bore and a second portion that extends transversely from the end of the first portion.
- An external collar is disposed around the internal locking collar so as to prevent intrusion by surrounding tissue of the patient into the central bore and the first slot locking mechanism canal.
- An abutment for cement includes a base surface defining a central hole that has a diameter greater than the central bore and includes a prosthesis attachment surface extending upwardly therefrom.
- a male locking mechanism includes at least one first tab extending outwardly therefrom.
- the male locking mechanism is configured to be pushed through the central hole and into the central bore so that the at least one first tab slides into the first slot locking mechanism canal.
- the at least one first tab reaches the end of the first portion and rotational force is applied to the male locking mechanism, the tab will move into the second portion and lock into place, thereby securing the abutment to the dental implant fixture.
- the invention is a dental implant system that includes a dental implant fixture.
- An internal locking collar extends upwardly from the dental implant fixture.
- the internal locking collar defines a central bore extending downwardly into the dental implant fixture.
- An abutment for cement includes a base surface defining a central hole aligned with the central bore and includes a prosthesis attachment surface extending upwardly therefrom.
- An expansion locking system is disposed through the central hole and within the bore. A portion of the expansion locking system is expanded outwardly so as to lock the abutment for cement to the dental implant fixture.
- FIG. 1A is a perspective view of one embodiment of a dental implant system.
- FIG. 1B is an exploded view of the embodiment shown in FIG. 1A .
- FIG. 2 is a cross-sectional view of the embodiment shown in FIG. 1A , taken along line 2 - 2 .
- FIG. 3A is a perspective view of a second embodiment of a dental implant system.
- FIG. 3B is a n exploded view of the embodiment shown in FIG. 3A .
- FIG. 4 is a cross-sectional view of the embodiment shown in FIG. 1A , taken along line 4 - 4 .
- a dental implant system 100 includes a dental implant fixture 110 , which could include either a threaded type implant fixture or a cylinder type implant fixture, that is configured to be placed in a prepared cite in a patient's mandibular or maxillary bone.
- An internal locking collar 112 extends upwardly from the dental implant fixture 110 and defines a central bore 116 extending downwardly into the dental implant fixture 110 .
- a first slot locking mechanism canal 114 a is in communication with the central bore 116 .
- the first slot locking mechanism canal 114 a has a first portion 115 , terminating in an end, that is parallel to the central bore 116 and a second portion 117 that extends transversely from the end of the first portion 115 .
- a second slot locking mechanism canal 114 b that is rotationally symmetric with the second slot locking mechanism canal 114 a may also be employed.
- An external collar 120 is placed around the internal locking collar 112 to protect surrounding tissue once the implant system 100 is in place.
- the external collar 120 could be removable or it could be welded to the dental implant fixture 110 .
- the external collar 120 can be a cylindrical ring having a height and shape that corresponds to that of the internal locking collar 112 .
- An abutment for cement 130 includes a flat surface 136 that defines a central hole 132 that has a diameter greater than the central bore 116 and includes a prosthesis attachment surface 134 extending upwardly therefrom.
- the abutment for cement 130 has a base surface 138 that does not define an engagement shape that requires alignment with a complementary shape defined by the implant.
- a washer 140 can fit onto the flat surface 136 .
- a male locking mechanism 150 includes at least one first tab 152 extending outwardly therefrom (in most applications, two oppositely disposed tabs 152 will be employed) and a top portion 154 that serves as a wrench engagement surface that defines two oppositely disposed notches 155 for engagement with a wrench-type tool (not shown).
- the abutment 130 is affixed to the dental implant fixture 110 using the male locking mechanism 150 , which is pushed into the central bore 116 so that the tabs 152 slide into the slot locking mechanism canal 114 and then rotational force is applied to the wrench engagement surface top portion 154 with a wrench (not shown) until the tabs 152 lock into place.
- the prosthesis may be cemented, or otherwise attached, to the abutment 130 .
- the system employs an expansion locking system 250 to secure the abutment 130 to the implant 110 .
- the expansion locking system 250 includes an expansion member 251 that includes manipulation surface 254 from which an expansion member 255 depends.
- the expansion member 255 includes at least two extendable expansion lock members 256 extend downwardly from the manipulation surface 254 .
- the manipulation surface 254 defines a partially threaded bore 252 that extends into the laterally extendable expansion lock members 256 .
- a cylindrical expander 260 has a non-threaded lower rod portion 266 extending to an upper threaded portion 262 and ends by defining a wrench engagement surface 264 .
- the wrench engagement surface 264 is complimentary in shape to a tool (not shown), such as a hex wrench, for screwing the cylindrical expander into the expansion member.
- the expansion locking system 250 is pushed through the abutment 130 into the central bore 116 the expander 260 is pushed into the partially threaded bore 252 and then screwed therein. This causes the expander to put outward force on the expansion lock members 256 , forcing them to engage the inner surface of the central bore 116 , thereby locking the abutment for cement to the dental implant fixture 110 .
- This embodiment could be well suited for use with existing in situ implants when replacing a failed abutment.
- the component parts (including the dental implant fixture and the male locking mechanism) of the dental implant systems disclosed above can be made of materials such as titanium, zirconia, a ceramic, stainless steel, a noble metal, or alloys that include combinations thereof.
Abstract
A dental prosthesis system includes a dental implant having a dental implant fixture and an internal locking collar extending upwardly from the dental implant fixture. The internal locking collar defines a central bore extending downwardly into the dental implant fixture. An abutment for cement has a base surface for placement against the dental implant, which defines a central hole aligned with the central bore. A securing mechanism secures the abutment for cement to the dental implant. The securing mechanism including an expansion locking system disposed through the central hole and within the bore. A portion of the expansion locking system is expandable outwardly so as to lock the abutment for cement to the dental implant fixture.
Description
- This application claims the benefit of U.S. Provisional Patent Application Ser. No. 62/474,711, filed Mar. 22, 2017, the entirety of which is hereby incorporated herein by reference.
- This application is a continuation of, and claims the benefit of, U.S. patent application Ser. No. 15/899,115, filed Feb. 19, 2018, the entirety of which is hereby incorporated herein by reference.
- The present invention relates to dental implants and, more specifically, to a dental implant system with a locking abutment.
- Roughly 125 million individuals in the United States alone are missing some of their teeth. One approach to treating patients missing teeth is to supply them with removable dentures. Dentures have the disadvantage of not adequately loading their supporting bone (such as the mandible for lower dentures and the maxilla for upper dentures). An unloaded supporting bone experiences very little strain. When the supporting bone lacks a minimum level of strain, bone resorption occurs. This results in shrinkage of the supporting bone and can further result in related health and aesthetic problems.
- Another approach to treating edentulous or partially edentulous patients is to place endosteal osteointegrated (the integration of bone tissue with the implant) implants in the supporting bone. Osteointegrated endosteal implants are alloplastic materials surgically inserted into a residual bony ridge to serve as prosthodontic foundations. Such implants serve as platforms for prosthetic devices. The introduction of osteointegrated dental implants has given edentulous and partially edentulous patients a more effective means to restore their ability to chew and to improve their appearance. Furthermore, osteointegrated implants functionally load the mandibular (or maxillary) bone into which they are implanted, thereby inducing strain in the bone under normal functional loading. Bone loss and resorption, which commonly occur with dentures, can thereby be minimized or avoided by maintaining a proper loading profile on the bone.
- Two subcategories of endosteal implants include plate form implants and root form implants. A plate form implant is characterized by a flat, narrow plate typically placed in a horizontal dimension of the mandibular or maxillary bone. Root form implants are designed to be placed in a vertical column of bone. Root form implants include two types: cylinder-type root form implants, which are non-threaded cylinders pressed into holes drilled into the receiving bone, and screw-type root form implants, having a threaded outer surface which is screwed into a hole drilled into the receiving bone.
- A typical root form dental implant system employs a dental implant that is placed in a prepared site in the underlying bone. A disposable mount is used to provide a connection to an insertion tool used to place the implant into the bone. If the implant is a threaded implant, the mount is typically a removable extension of the implant that provides a hex nut-type surface for engagement with a socket used for screwing the implant into the prepared site. Once the implant is engaged in the site, the mount is removed and discarded. A cover screw is affixed to the top of the implant and the bone surrounding the prepared site is allowed to grow into the implant for several months, thereby securing the implant to the bone.
- Once the surrounding bone has sufficiently engaged the implant, the cover screw is removed and an abutment is affixed to the implant. An impression of the implant with the abutment and the surrounding teeth is taken and a dental prosthesis, such as a crown, is constructed using the impression as a model of the area of the patient's mouth surrounding the implant site. The dental prosthesis is then affixed to the abutment with cement, or other affixing means. Thus, the abutment acts as a platform for securing a dental prosthesis to the implant.
- Many current abutments have a bottom surface that is complementary in shape to a hex shaped top surface of the implant and they are held together by a tiny screw. When the implantologist secures the abutment to the implant, these surfaces must be perfectly aligned, otherwise the anti-rotation surfaces can be damaged and the abutment can be allowed to rotate.
- Therefore, there is a need for an implant system having an easy-to-use anti-rotation abutment locking system that provides a positive indication to the implantologist that the abutment is securely locked to the implant.
- The disadvantages of the prior art are overcome by the present invention which, in one aspect, a dental prosthesis securing system for securing a dental prosthesis to a dental implant. An abutment for cement has a base surface for placement against the dental implant. The base surface does not define an engagement shape that requires alignment with a complementary shape defined by the implant. A securing mechanism secures the abutment for cement to the dental implant.
- In another aspect, the invention is a dental implant system, for implantation into a jawbone of a patient that includes a dental implant fixture. An internal locking collar extends upwardly from the dental implant fixture. The internal locking collar defines a central bore extending downwardly into the dental implant fixture. A first slot locking mechanism canal has a first portion, terminating in an end, that is parallel to the central bore and a second portion that extends transversely from the end of the first portion. An external collar is disposed around the internal locking collar so as to prevent intrusion by surrounding tissue of the patient into the central bore and the first slot locking mechanism canal. An abutment for cement includes a base surface defining a central hole that has a diameter greater than the central bore and includes a prosthesis attachment surface extending upwardly therefrom. A male locking mechanism includes at least one first tab extending outwardly therefrom. The male locking mechanism is configured to be pushed through the central hole and into the central bore so that the at least one first tab slides into the first slot locking mechanism canal. When the at least one first tab reaches the end of the first portion and rotational force is applied to the male locking mechanism, the tab will move into the second portion and lock into place, thereby securing the abutment to the dental implant fixture.
- In yet another aspect, the invention is a dental implant system that includes a dental implant fixture. An internal locking collar extends upwardly from the dental implant fixture. The internal locking collar defines a central bore extending downwardly into the dental implant fixture. An abutment for cement includes a base surface defining a central hole aligned with the central bore and includes a prosthesis attachment surface extending upwardly therefrom. An expansion locking system is disposed through the central hole and within the bore. A portion of the expansion locking system is expanded outwardly so as to lock the abutment for cement to the dental implant fixture.
- These and other aspects of the invention will become apparent from the following description of the preferred embodiments taken in conjunction with the following drawings. As would be obvious to one skilled in the art, many variations and modifications of the invention may be effected without departing from the spirit and scope of the novel concepts of the disclosure.
-
FIG. 1A is a perspective view of one embodiment of a dental implant system. -
FIG. 1B is an exploded view of the embodiment shown inFIG. 1A . -
FIG. 2 is a cross-sectional view of the embodiment shown inFIG. 1A , taken along line 2-2. -
FIG. 3A is a perspective view of a second embodiment of a dental implant system. -
FIG. 3B is a n exploded view of the embodiment shown inFIG. 3A . -
FIG. 4 is a cross-sectional view of the embodiment shown inFIG. 1A , taken along line 4-4. - A preferred embodiment of the invention is now described in detail. Referring to the drawings, like numbers indicate like parts throughout the views. Unless otherwise specifically indicated in the disclosure that follows, the drawings are not necessarily drawn to scale. As used in the description herein and throughout the claims, the following terms take the meanings explicitly associated herein, unless the context clearly dictates otherwise: the meaning of “a,” “an,” and “the” includes plural reference, the meaning of “in” includes “in” and “on.”
- As shown in
FIGS. 1A, 1B and 2 , one embodiment of adental implant system 100 includes adental implant fixture 110, which could include either a threaded type implant fixture or a cylinder type implant fixture, that is configured to be placed in a prepared cite in a patient's mandibular or maxillary bone. Aninternal locking collar 112 extends upwardly from thedental implant fixture 110 and defines acentral bore 116 extending downwardly into thedental implant fixture 110. A first slotlocking mechanism canal 114 a is in communication with thecentral bore 116. The first slotlocking mechanism canal 114 a has afirst portion 115, terminating in an end, that is parallel to thecentral bore 116 and asecond portion 117 that extends transversely from the end of thefirst portion 115. A second slotlocking mechanism canal 114 b that is rotationally symmetric with the second slotlocking mechanism canal 114 a may also be employed. Anexternal collar 120 is placed around theinternal locking collar 112 to protect surrounding tissue once theimplant system 100 is in place. Theexternal collar 120 could be removable or it could be welded to thedental implant fixture 110. Theexternal collar 120 can be a cylindrical ring having a height and shape that corresponds to that of theinternal locking collar 112. - An abutment for
cement 130 includes aflat surface 136 that defines acentral hole 132 that has a diameter greater than thecentral bore 116 and includes aprosthesis attachment surface 134 extending upwardly therefrom. The abutment forcement 130 has abase surface 138 that does not define an engagement shape that requires alignment with a complementary shape defined by the implant. Awasher 140 can fit onto theflat surface 136. - A
male locking mechanism 150 includes at least onefirst tab 152 extending outwardly therefrom (in most applications, two oppositely disposedtabs 152 will be employed) and atop portion 154 that serves as a wrench engagement surface that defines two oppositelydisposed notches 155 for engagement with a wrench-type tool (not shown). - Once the
dental implant fixture 110 has been emplaced for a sufficient amount of time to ensure bone growth into thedental implant fixture 110, theabutment 130 is affixed to thedental implant fixture 110 using themale locking mechanism 150, which is pushed into thecentral bore 116 so that thetabs 152 slide into the slotlocking mechanism canal 114 and then rotational force is applied to the wrench engagementsurface top portion 154 with a wrench (not shown) until thetabs 152 lock into place. Once locked into place, the prosthesis may be cemented, or otherwise attached, to theabutment 130. - In an alternate embodiment, as shown in
FIGS. 3A, 3B and 4 , the system employs anexpansion locking system 250 to secure theabutment 130 to theimplant 110. Theexpansion locking system 250 includes anexpansion member 251 that includesmanipulation surface 254 from which anexpansion member 255 depends. Theexpansion member 255 includes at least two extendableexpansion lock members 256 extend downwardly from themanipulation surface 254. Themanipulation surface 254 defines a partially threaded bore 252 that extends into the laterally extendableexpansion lock members 256. - A
cylindrical expander 260 has a non-threadedlower rod portion 266 extending to an upper threadedportion 262 and ends by defining awrench engagement surface 264. Thewrench engagement surface 264 is complimentary in shape to a tool (not shown), such as a hex wrench, for screwing the cylindrical expander into the expansion member. - To secure the
abutment 130 to theimplant 110, theexpansion locking system 250 is pushed through theabutment 130 into thecentral bore 116 theexpander 260 is pushed into the partially threadedbore 252 and then screwed therein. This causes the expander to put outward force on theexpansion lock members 256, forcing them to engage the inner surface of thecentral bore 116, thereby locking the abutment for cement to thedental implant fixture 110. This embodiment could be well suited for use with existing in situ implants when replacing a failed abutment. - The component parts (including the dental implant fixture and the male locking mechanism) of the dental implant systems disclosed above can be made of materials such as titanium, zirconia, a ceramic, stainless steel, a noble metal, or alloys that include combinations thereof.
- The above-described embodiments, while including the preferred embodiment and the best mode of the invention known to the inventor at the time of filing, are given as illustrative examples only. It will be readily appreciated that many deviations may be made from the specific embodiments disclosed in this specification without departing from the spirit and scope of the invention. Accordingly, the scope of the invention is to be determined by the claims below rather than being limited to the specifically described embodiments above.
Claims (15)
1. A dental prosthesis securing system for use with a dental implant having a dental implant fixture and an internal locking collar extending upwardly from the dental implant fixture, the internal locking collar defining a central bore extending downwardly into the dental implant fixture, the dental prosthesis securing system comprising:
(a) an abutment for cement having a base surface for placement against the dental implant, the base surface defining a central hole aligned with the central bore and including a prosthesis attachment surface extending upwardly therefrom; and
(b) a securing mechanism that secures the abutment for cement to the dental implant, the securing mechanism including an expansion locking system disposed through the central hole and within the bore, a portion of the expansion locking system expandable outwardly so as to lock the abutment for cement to the dental implant fixture.
2. The dental prosthesis securing system of claim 1 , wherein the expansion locking system comprises:
(a) an expansion member that includes manipulation surface from which at least two extendable expansion lock members extend downwardly therefrom, the expansion member defining a partially threaded bore extending concentrically therethrough, a portion of the partially threaded bore adjacent to the manipulation surface being threaded; and
(b) a cylindrical expander including a non-threaded lower portion and an upper portion that is threaded so as to be complimentary to the threaded portion of the partially threaded bore, wherein placing the cylindrical expander into the partially threaded bore and screwing the upper portion into the threaded portion of the partially threaded bore causes the extendable expansion lock members to extend outwardly and engage an inner surface of the central bore, thereby locking the abutment for cement to the dental implant fixture.
3. The dental implant system of claim 1 , further comprising a washer disposed between the top portion of the male locking mechanism and the base surface of the abutment for cement.
4. The dental implant system of claim 1 , wherein the top portion of the male locking mechanism comprises a disk that defines two oppositely disposed notches for engagement with a tool.
5. The dental implant system of claim 1 , wherein the dental implant fixture and the male locking mechanism comprise a material selected from a list of materials consisting of: titanium, zirconia, a ceramic, stainless steel, a noble metal, and combinations thereof.
6. A dental prosthesis system, comprising:
(a) a dental implant having a dental implant fixture and an internal locking collar extending upwardly from the dental implant fixture, the internal locking collar defining a central bore extending downwardly into the dental implant fixture;
(b) an abutment for cement having a base surface for placement against the dental implant, the base surface defining a central hole aligned with the central bore and including a prosthesis attachment surface extending upwardly therefrom; and
(c) a securing mechanism that secures the abutment for cement to the dental implant, the securing mechanism including an expansion locking system disposed through the central hole and within the bore, a portion of the expansion locking system expandable outwardly so as to lock the abutment for cement to the dental implant fixture.
7. The dental prosthesis system of claim 6 , wherein the expansion locking system comprises:
(a) an expansion member that includes manipulation surface from which at least two extendable expansion lock members extend downwardly therefrom, the expansion member defining a partially threaded bore extending concentrically therethrough, a portion of the partially threaded bore adjacent to the manipulation surface being threaded; and
(b) a cylindrical expander including a non-threaded lower portion and an upper portion that is threaded so as to be complimentary to the threaded portion of the partially threaded bore, wherein placing the cylindrical expander into the partially threaded bore and screwing the upper portion into the threaded portion of the partially threaded bore causes the extendable expansion lock members to extend outwardly and engage an inner surface of the central bore, thereby locking the abutment for cement to the dental implant fixture.
8. The dental prosthesis system of claim 7 , further comprising a washer disposed between the top portion of the male locking mechanism and the base surface of the abutment for cement.
9. The dental prosthesis system of claim 7 , wherein the top portion of the male locking mechanism comprises a disk that defines two oppositely disposed notches for engagement with a tool.
10. The dental prosthesis system of claim 7 , wherein the dental implant fixture and the male locking mechanism comprise a material selected from a list of materials consisting of: titanium, zirconia, a ceramic, stainless steel, a noble metal, and combinations thereof.
11. A dental implant system, comprising:
(a) a dental implant fixture;
(b) an internal locking collar extending upwardly from the dental implant fixture, the internal locking collar defining a central bore extending downwardly into the dental implant fixture;
(c) an abutment for cement, including a base surface defining a central hole aligned with the central bore and including a prosthesis attachment surface extending upwardly therefrom; and
(d) an expansion locking system disposed through the central hole and within the bore, a portion of the expansion locking system expanded outwardly so as to lock the abutment for cement to the dental implant fixture.
12. The dental implant system of claim 11 , wherein the expansion locking system comprises:
(a) an expansion member that includes manipulation surface from which at least two extendable expansion lock members extend downwardly therefrom, the expansion member defining a partially threaded bore extending concentrically therethrough, a portion of the partially threaded bore adjacent to the manipulation surface being threaded; and
(b) a cylindrical expander including a non-threaded lower portion and an upper portion that is threaded so as to be complimentary to the threaded portion of the partially threaded bore, wherein placing the cylindrical expander into the partially threaded bore and screwing the upper portion into the threaded portion of the partially threaded bore causes the extendable expansion lock members to extend outwardly and engage an inner surface of the central bore, thereby locking the abutment for cement to the dental implant fixture.
13. The dental implant system of claim 12 , wherein the cylindrical expander defines a wrench engagement surface at an end adjacent to the upper portion, the wrench engagement surface being complimentary in shape to a tool for screwing the cylindrical expander into the expansion member.
14. The dental implant system of claim 11 , wherein the dental implant fixture and the expansion locking system comprise a material selected from a list of materials consisting of: titanium, zirconia, a ceramic, stainless steel, a noble metal, and combinations thereof.
15. The dental implant system of claim 11 , further comprising a washer disposed between the manipulation surface and the abutment for cement.
Priority Applications (1)
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US17/323,446 US20210267727A1 (en) | 2017-03-22 | 2021-05-18 | Dental Implant System |
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US201762474711P | 2017-03-22 | 2017-03-22 | |
US15/899,115 US11033365B2 (en) | 2017-03-22 | 2018-02-19 | Dental implant system |
US17/323,446 US20210267727A1 (en) | 2017-03-22 | 2021-05-18 | Dental Implant System |
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US15/899,115 Continuation US11033365B2 (en) | 2017-03-22 | 2018-02-19 | Dental implant system |
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US20210267727A1 true US20210267727A1 (en) | 2021-09-02 |
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EP (1) | EP3600137A4 (en) |
CA (1) | CA3056220A1 (en) |
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US11666420B2 (en) * | 2018-12-21 | 2023-06-06 | National Dentex, Llc | Dental abutment cap assembly |
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- 2018-02-19 CA CA3056220A patent/CA3056220A1/en active Pending
- 2018-02-19 WO PCT/US2018/018632 patent/WO2018175026A1/en unknown
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US20160338802A1 (en) * | 2014-02-11 | 2016-11-24 | Heraeus Kulzer Gmbh | Dampening insert for dental implants |
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US11033365B2 (en) | 2021-06-15 |
EP3600137A1 (en) | 2020-02-05 |
EP3600137A4 (en) | 2021-03-31 |
WO2018175026A1 (en) | 2018-09-27 |
CA3056220A1 (en) | 2018-09-27 |
US20180271626A1 (en) | 2018-09-27 |
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