Angulated dental implant
AssigneeSouthern Implants (PTY) Ltd
InventorsGraham Alan Blackbeard, Leith Carruthers Cumming
Life of this patent
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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.
Claims12
An angled dental implant, comprising:
- a generally cylindrical body having a maximum outer diameter and 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 angled dental implant in bone of a patient, an exterior surface of the proximal portion of the generally cylindrical body including a thread;
- an interior bore formed in the generally cylindrical body, thereby forming a circumferentially extending wall defined by at least a portion of an outer surface of the generally cylindrical body and at least a portion of an inner surface of the interior bore, the interior bore having a bore-central axis that is at an angle between about 7° and about 31° relative to the main-central axis of the generally cylindrical body, the relative angle of the bore-central axis causing at least a first portion of the circumferentially extending wall to have a varying thickness about a circumference of the first portion, the thickness of the circumferentially extending wall at the first portion varying from a thinnest portion adjacent to a first side of the generally cylindrical body to a thickest portion adjacent to a second opposing side of the generally cylindrical body, the interior bore having a threaded portion for receiving a screw configured to removable hold an abutment in engagement with the angled dental implant, the thread of the exterior surface of the proximal portion of the generally cylindrical body being located about the first portion of the circumferentially extending wall having the thinnest portion;
- and
- a non-rotational feature configured to engage the abutment in a non-rotational fashion,
- wherein a ratio of the maximum outer diameter of the generally cylindrical body to the thinnest portion of the circumferentially extending wall adjacent to the first side of the generally cylindrical body at the first portion is between about 16 and about 80.
Dependencies are inferred from the claim text.