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.
Claims21
A dental implant, comprising:
- a generally cylindrical body having a main-central axis, the generally cylindrical body being formed from a high strength titanium alloy 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, the generally cylindrical body has a maximum outer diameter between about 3 millimeters and 4.25 millimeters;
- 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;
- a non-rotational feature configured to engage the abutment in a non-rotational fashion;
- and
- a circumferentially extending wall within the proximal portion of the generally cylindrical body, the circumferentially extending wall defined by an outer surface of the generally cylindrical body and an inner surface of the interior bore, wherein a portion of the circumferentially extending wall has a thickness between about 0.04 millimeters and about 0.25 millimeters.
A zygomatic dental implant, comprising:
- a generally cylindrical body having a main-central axis and a maximum outer diameter between about 3.5 millimeters and about 4.5 millimeters, the generally cylindrical body being formed from a titanium alloy having an ultimate tensile strength of at least about 900 MPa, the generally cylindrical body having a proximal portion, a middle portion, and a distal portion, the generally cylindrical main body having a threaded surface extending in the proximal portion, the middle portion, and the distal portion, the threaded surface in the distal portion for anchoring the zygomatic dental implant in bone of a patient and including flutes for assisting with self-tapping the bone, the proximal portion further including a non-threaded surface;
- an interior bore formed in the proximal portion of generally cylindrical body, thereby forming a circumferentially extending wall, the circumferentially extending wall having a thickness between about 0.04 millimeters and about 0.4 millimeters, the interior bore having a threaded portion for receiving a screw configured to removably hold an abutment in engagement with the zygomatic dental implant;
- and
- a non-rotational feature configured to engage the abutment in a non-rotational fashion.
A zygomatic dental implant, comprising:
- a generally cylindrical body having a main-central axis and a maximum outer diameter between about 3.5 millimeters and about 4.5 millimeters, 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, a middle portion, and a distal portion, the distal portion of the generally cylindrical main body having a threaded surface for anchoring the zygomatic dental implant in bone of a patient, the threaded surface including flutes for assisting with self-tapping the bone, the middle portion being smooth and lacking a threaded surface, the proximal portion being smooth and lacking a threaded surface, the proximal portion including an enlarged collar section, and wherein a combined length of the non-threaded proximal portion and the non-threaded middle portion is between about 35% and 70% of an overall length of the generally cylindrical main body;
- an interior bore formed in the proximal portion of generally cylindrical body, the interior bore 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 zygomatic dental implant;
- and
- a non-rotational feature configured to engage the abutment in a non-rotational fashion.
Dependencies are inferred from the claim text.