# US 5,350,302 A · Implant collar and post system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,350,302 A - Document ID: US5350302A - Status: Granted - Kind: A - Application number: 07/921,729 - Filed: 1992-07-30 - Granted: 1994-09-27 - Earliest claimed: 1990-07-05 - Inventors: Gerald M. Marlin - Web page: https://patentgrep.com/patent/US5350302A ## CPC - A61C 8/0048: {Connecting the upper structure to the implant, e.g. bridging bars (A61C8/0028 takes precedence)} - A61C 8/005: {Connecting devices for joining an upper structure with an implant member, e.g. spacers} - A61C 8/0069: {tapered or conical connection} - A61C 8/0054: {having a cylindrical implant connecting part} - A61C 8/006: {with polygonal positional means, e.g. hexagonal or octagonal} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) ## Abstract Abutment posts, gingival collars, and universal adaptors along with their fixation screws that are used for insertion into dental implants are revealed. The adaptor is universal in that it matches to many different shaped, sized, and styled implants, and standardizes their restoration with uniform gingival collars and abutment posts. A gingival collar of varying sizes, which extends from the top of the flange of the adaptor to the height of the gingival tissue, is used to bring the restoration of the implant into the oral cavity. A post becomes connected to the gingival collar to create a restoration for the placement of a crown or coping over the implant. The top of the adaptor has a projection which is indexed and the top of the gingival collar is also indexed. This indexing allows specific angle correction in the horizontal plane by the counter rotation of the gingival collar and the post head. The post head, itself, comes in a variety of angles and shapes to make vertical angle correction to compensate for angled implant placement. The combination of horizontal correction from the counter rotations of the gingival collar and the post head, along with the vertical angle correction of the post, allows for overall precise angle correction of implant placement. ## Claims ### Claim 1 An assembly for use in prosthetic implant restorations in dentistry including an implant having an internal implant passage, the assembly comprising in combination: an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion adapted to extend above an implant when in use, an abutment post dimensioned to receive a crown or coping and having a passage therein and being mounted on the first portion of the adaptor, said adaptor having an axial through passage in register with the passage in the abutment post and extending through opposite ends thereof, said adaptor having an internal shoulder surrounding the through passage in the adaptor, first means for adjusting the relative angular positions of the post and adaptor to compensate for angulated implants, second means including a screw member received in the axial passage of said adaptor and engaged on said internal shoulder for securing the adaptor to an associated implant when mounted on an implant in use, said screw member being a piece separate from said abutment post and having internal threads, and third means including a screw receivable through the passage in the post and engaged in said internal threads of the screw member for securing the post to said adaptor. ### Claim 2 (depends on 1) The assembly defined in claim 1 including second means for adjusting the relative angular positions of the adaptor and the implant and wherein said means for adjusting the relative angular positions of the adaptor and implant and the post and adaptor provide different increments of angular adjustment. ### Claim 3 (depends on 1) The assembly defined in claim 1 wherein said adaptor has a flange projecting radially outwardly intermediate the ends thereof, said flange having an inverted frusto-conical shape. ### Claim 4 For use in securing an abutment post to a dental implant, an assembly including in combination: an adaptor constituting a piece separate from an abutment post and implant and adapted to be adjustable relative thereto, said adaptor including a rigid body receivable on an associated implant and having an internal shoulder for receiving a fastener for releasably securing the body on an implant, said body having an axially extending through passage with said internal shoulder surrounding said passage, a first screw received in the passage of the body and having a first shoulder engaged on said internal shoulder and having threads adapted to be secured in threads of an implant for securing the body to an implant, said screw having a second shoulder and said body having a second shoulder engageable by said second shoulder of said screw, and a second screw received in the first screw for securing an abutment post or collar to the adaptor body. ### Claim 5 An assembly for use in prosthetic implant restorations in dentistry, the assembly comprising in combination: a crown, an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion adapted to extend above an associated implant, a collar to be mounted on the adaptor and having a depth to generally conform to the depth between a jaw bone and gum line of a particular patient, an abutment post receivable on the collar and receiving said crown, means for securing the crown to the post, and means for securing the adaptor collar and post to an associated implant, and wherein said means for securing the crown to the post, and means for securing the adaptor collar and post to an associated implant, and wherein said means for securing said adaptor and collar includes a screw engageable with threads on an associated implant and wherein said post has a post passage registrable with the passage of the collar, and wherein said adaptor has a passage receiving said screw and said screw is engageable with said adaptor to secure the adaptor relative to an associated implant, and wherein said screw has a first external shoulder, and said adaptor has a first shoulder internally about the passage thereof engageable by the first shoulder of the screw. ### Claim 6 (depends on 5) The assembly defined in claim 5 wherein said screw has a second shoulder and said adaptor has a second shoulder engageable by said second shoulder of said screw. ### Claim 7 (depends on 5) The assembly defined in claim 5 wherein said adaptor and collar having mating polygonal surfaces for adjusting the adaptor and collar in first angular increments and wherein said abutment post and collar having mating polygonal surfaces for adjusting the abutment posts and collar in second angular increments different than the angular increments of adjustment between the adaptor and collar. ### Claim 8 An assembly for use in prosthetic implant restorations in dentistry, the assembly comprising in combination: an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion adapted to extend above an associated implant, a collar to be mounted on the adaptor and having a depth to generally conform to the depth between a jaw bone and gum line of a particular patient, an abutment post receivable on the collar and having an external surface dimensioned and shaped to receive a crown or a coping, and means receivable in a passage of the collar for securing the adaptor and collar to an associated implant, and wherein said means for securing said adaptor and collar includes a screw and wherein said adaptor has a passage receiving said screw and said screw is engageable with said adaptor to secure the adaptor relative to an associated implant and wherein said screw has a first external shoulder, and said adaptor has a first shoulder of the screw and wherein said screw has a second shoulder and said adaptor has a second shoulder engageable by said second shoulder of said screw. ### Claim 9 An assembly for use in prosthetic implant restorations in dentistry, the assembly comprising in combination: an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion dimensioned to extend above an associated implant, a collar to be mounted on the adaptor and having a depth to generally conform to the depth between a jaw bone and gum line of a particular patient, an abutment post receivable on the collar, and means for securing the adaptor, collar and post to an associated implant, and wherein said adaptor and collar have mating polygonal surfaces for adjusting the adaptor and collar in first angular increments and wherein said abutment post and collar having mating polygonal surfaces for adjusting the abutment post and collar in second angular increments different from the angular increments of adjustment between the adaptor and collar. ### Claim 10 (depends on 9) The assembly defined in claim 9 wherein aid first angular increments are each forty-five degrees (45.degree.) and said second angular increments are each sixty degrees (60.degree.). ### Claim 11 An assembly for use in prosthetic implant restorations in dentistry, the assembly comprising in combination: an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion dimensioned to extend above an associated implant, a collar to be mounted on the adaptor and having a depth to generally conform to the depth between a jaw bone and gum line of a patient, an abutment post receivable on the collar for supporting a crown or coping or other piece separate from the abutment post, and means for securing the adaptor and collar to an associated implant including a first screw receivable through and engageable with the adaptor and having an internal threaded passage, and a second screw engageable in the threaded passage of the first screw for engaging the collar and securing the collar relative to the adaptor. ### Claim 12 An assembly for use in prosthetic implant restorations in dentistry, the assembly comprising in combination: a crown, an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion dimensioned to extend above an associated implant, a collar to be mounted on the adaptor and having a depth to generally conform to the depth between a jaw bone and gum line of a particular patient, an abutment post receivable on the collar and receiving said crown, means for securing the crown to the post, and means for securing the adaptor collar and post to an associated implant, and wherein said means for securing said adaptor and collar includes a screw and wherein said adaptor has a passage receiving said screw and said screw in engageable with said adaptor to secure the adaptor relative to an associated implant, and wherein said screw has a first external shoulder, and said adaptor has a first shoulder internally about the passage thereof engageable by the first shoulder of the screw. ### Claim 13 An assembly for use in prosthetic implant restorations in dentistry, the assembly comprising in combination: a crown, an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion dimensioned to extend above an associated implant, a collar to be mounted on the adaptor and having a depth to generally conform to the depth between a jaw bone and gum line of a particular patient, an abutment post receivable on the collar and receiving said crown, means for securing the crown to the post, and means for securing the adaptor collar and post to an associated implant, and wherein said means for securing said adaptor and collar includes a screw engageable with threads on an associated implant and wherein said post has a post passage registrable with the passage of the collar, and wherein said screw has an internal threaded passage and there is further included a second screw receivable through said passage in said post and into said threaded passage of said first screw for engaging and securing the collar relative to the adaptor. ### Claim 14 (depends on 13) The assembly defined in claim 13 wherein said adaptor has in its lower end a polygonal-shaped recess to receive and match with a polygonal-shaped projection on an associated implant. ### Claim 15 An assembly for use in prosthetic implant restorations in dentistry, the assembly comprising in combination: a crown, an adaptor chosen to be compatible to and receivable on an associated implant and having a first portion dimensioned to extend above an associated implant, a collar to be mounted on the adaptor and having a depth to generally conform to the depth between a jaw bone and gum line of a particular patient, an abutment post receivable on the collar and receiving said crown, means for securing the crown to the post, and means for securing the adaptor collar and post to an associated implant, and wherein the collar has a shoulder for receiving a portion of a fastener means, and wherein said means for securing the adaptor and collar includes a first screw received through aligned passages in the adaptor and collar wherein said fastener means includes a second screw received in said first screw. ### Claim 16 (depends on 15) The assembly defined in claim 15 wherein said post has a passage for receiving said second screw.