# US 11,998,419 B2 · Angulated dental implant > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,419 B2 - Document ID: US11998419B2 - Status: Granted - Kind: B2 - Application number: 17/568,064 - Filed: 2022-01-04 - Published: 2022-04-21 - Granted: 2024-06-04 - Earliest claimed: 2016-03-30 - Assignees: Southern Implants (PTY) Ltd - Applicants: Southern Implants (PTY) Ltd - Inventors: Graham Alan Blackbeard; Leith Carruthers Cumming - Web page: https://patentgrep.com/patent/US11998419B2 ## CPC - A61C 8/0056: {diverging in the apical direction of the implant or abutment} - A61C 8/0022: {Self-screwing (A61C8/0028 takes precedence)} - A61C 8/0025: {with multiple threads} - A61C 8/0034: {Long implant, e.g. zygomatic implant} - A61C 8/0037: {Details of the shape} - A61C 8/0054: {having a cylindrical implant connecting part} - A61C 8/006: {with polygonal positional means, e.g. hexagonal or octagonal} - A61C 8/0068: {with an additional screw} - A61C 8/0074: {with external threads} - A61C 8/0089: {Implanting tools or instruments} - 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 A dental implant includes a generally cylindrical body, an interior bore, and a non-rotational feature. The generally cylindrical body has a main-central axis and is formed from cold-worked, high strength, commercially pure titanium having an ultimate tensile strength of at least about 900 MPa. The generally cylindrical body has a proximal portion and an opposing distal portion for anchoring the dental implant in bone of a patient. The interior bore is formed in the generally cylindrical body and has (i) a bore-central axis and (ii) a threaded portion for receiving a screw that is configured to removable hold an abutment in engagement with the dental implant. The non-rotational feature is configured to engage the abutment in a non-rotational fashion. ## Claims ### Claim 1 A dental implant, comprising: a generally cylindrical body having a main-central axis, the generally cylindrical body being formed from cold-worked, high strength, commercially pure titanium having an ultimate tensile strength of at least about 900 MPa, the generally cylindrical body having a proximal portion and an opposing distal portion for anchoring the dental implant in bone of a patient; an interior bore formed in the generally cylindrical body and having (i) a bore-central axis and (ii) a threaded portion for receiving a screw configured to removable hold an abutment in engagement with the dental implant; and a non-rotational feature configured to engage the abutment in a non-rotational fashion. ### Claim 2 (depends on 1) The dental implant of claim 1, wherein the generally cylindrical body includes a circumferentially extending wall defined by an outer surface of the generally cylindrical body and an inner surface of the interior bore. ### Claim 3 (depends on 2) The dental implant of claim 2, wherein at least a portion of the circumferentially extending wall is configured to directly engage the abutment. ### Claim 4 (depends on 2) The dental implant of claim 2, wherein an exterior surface of the proximal portion of the generally cylindrical body includes a first thread and an exterior surface of the opposing distal portion of the generally cylindrical body includes a second thread, the first thread being located about a thinnest portion of the circumferentially extending wall. ### Claim 5 (depends on 4) The dental implant of claim 4, wherein the first thread is a micro thread and the second thread is a main thread. ### Claim 6 (depends on 1) The dental implant of claim 1, wherein a portion of the circumferentially extending wall has a thickness between about 0.04 millimeters and about 0.25 millimeters, and wherein the portion of the circumferentially extending wall is adjacent to a proximal end of the interior bore. ### Claim 7 (depends on 1) The dental implant of claim 1, wherein the bore-central axis of the interior bore is at a non-zero angle relative to the main-central axis of the generally cylindrical body. ### Claim 8 (depends on 7) The dental implant of claim 7, wherein the non-zero angle is between about 7 degrees and about 31 degrees. ### Claim 9 (depends on 1) The dental implant of claim 1, wherein the generally cylindrical body has a maximum outer diameter between about 3 millimeters and 4.25 millimeters. ### Claim 10 (depends on 1) The dental implant of claim 1, wherein an exterior surface of the proximal portion of the generally cylindrical body includes a first thread and an exterior surface of the opposing distal portion of the generally cylindrical body includes a second thread. ### Claim 11 (depends on 10) The dental implant of claim 10, wherein the first thread has a first pitch and the second thread has a second pitch that is the same as the first pitch. ### Claim 12 (depends on 11) The dental implant of claim 11, wherein the first thread is a multi-lead thread and the second thread is a single-lead thread. ### Claim 13 (depends on 1) The dental implant of claim 1, wherein the dental implant is one of an internal-connection dental implant and the non-rotational feature includes a socket formed in the interior bore and an external-connection dental implant and the non-rotational feature includes a boss extending from the proximal portion of the generally cylindrical body. ### Claim 14 A method of making a dental implant, comprising: machining cold-worked commercially pure titanium into a generally cylindrical body having a main-central axis, the generally cylindrical body having a proximal portion and an opposing distal portion for anchoring the dental implant in bone of a patient, the cold-worked commercially pure titanium having an ultimate tensile strength of at least about 900 MPa; forming an interior bore in the generally cylindrical body, the interior bore including (i) a bore-central axis and (ii) a threaded portion, the interior bore being formed to include a circumferentially extending wall defined by an outer surface of the generally cylindrical body and an inner surface of the interior bore, a portion of the circumferentially extending wall having a thickness between about 0.04 millimeters and about 0.4 millimeters; and forming a non-rotational feature in the generally cylindrical body for engaging an abutment. ### Claim 15 (depends on 14) The method of claim 14, wherein the bore-central axis of the interior bore is at a non-zero angle relative to the main-central axis of the generally cylindrical body. ### Claim 16 (depends on 15) The method of claim 15, wherein the machined generally cylindrical body has a maximum outer diameter between about 3 millimeters and about 4 millimeters. ### Claim 17 (depends on 14) The method of claim 14, further comprising forming a micro thread into an exterior surface of the proximal portion of the generally cylindrical body and forming a main thread into an exterior surface of the opposing distal portion of the generally cylindrical body, the micro thread being located about a thinnest portion of the circumferentially extending wall.