Angulated dental implant
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.
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.
2. 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.
3. The dental implant of claim 2 , wherein at least a portion of the circumferentially extending wall is configured to directly engage the abutment.
4. 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.
5. The dental implant of claim 4 , wherein the first thread is a micro thread and the second thread is a main thread.
6. 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.
7. 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.
8. The dental implant of claim 7 , wherein the non-zero angle is between about 7 degrees and about 31 degrees.
9. The dental implant of claim 1 , wherein the generally cylindrical body has a maximum outer diameter between about 3 millimeters and 4.25 millimeters.
10. 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.
11. 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.
12. The dental implant of claim 11 , wherein the first thread is a multi-lead thread and the second thread is a single-lead thread.
13. 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.
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.
15. 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.
16. The method of claim 15 , wherein the machined generally cylindrical body has a maximum outer diameter between about 3 millimeters and about 4 millimeters.
17. 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.