Dental assembly and process for preparing a tooth prosthesis
OwnerSargon Lazarofinventor
Life of this patent
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Abstract
A dental assembly includes an implant having a tubular body portion which can be positively secured within a bore in a jawbone by an expander mechanism, and a two-piece abutment secured to the implant and having a collar which is incapable of rotation with respect thereto. In a related process for preparing a tooth prosthesis, a transfer sleeve is utilized in a process to replicate conditions in the mouth, including the configuration of the abutment assembly, in manufacturing a custom analog. A custom analog is cast into a stone mold to provide an exact duplicate of the mouth. From this stone mold a crown can be manufactured in a laboratory to precisely fit in the user's mouth over a customized abutment. A treatment crown sleeve may be utilized in connection with a provisional tooth.
Claims37
A dental assembly, comprising:
- an implant assembly including a skirt receivable within a bore provided in a jawbone of a patient, and supporting means extending from the skirt and adapted to extend outwardly from the bore, the supporting means including at least one radially outwardly facing planar surface, and the skirt being radially movable within the bore from a first retracted position to a second expanded position and including an internal shoulder, the implant assembly further including a draw screw having a head that rests on the internal shoulder and a threaded shank which extends to an end of the skirt, and an expansion nut having a frustoconically-shaped skirt-engaging side wall and an inner threaded cavity into which the shank of the draw screw is threaded, whereby rotation of the draw screw through the inner cavity of the expansion nut causes radial movement of the skirt from the first retracted position to the second expanded position;
- an abutment collar having a central cavity defining at least one radially inwardly facing planar surface which, when the abutment collar is positioned over at least a portion of the supporting means, the radially facing surfaces of the supporting means and the abutment collar interfit to prevent rotation of the abutment collar relative to the implant assembly;
- and
- an abutment screw having a head positionable in abutting relation to the abutment collar opposite the implant assembly, and a shank that extends from the head through the central cavity of the abutment collar for connection to the implant assembly.
A dental assembly, comprising:
- an elongated hollow body including a skirt receivable within a bore provided in a jawbone of a patient, and means extending from the skirt and adapted to extend outwardly from the bore for supporting a prosthetic component, wherein the skirt is radially movable within the bore from a first retracted position to a second expanded position and includes an internal shoulder, and wherein the supporting means includes at least one radially outwardly facing planar surface that may be engaged by the prosthetic component to prevent relative rotation therebetween;
- a draw screw having a head that rests on the internal shoulder and a threaded shank connected to the head and which extends to an end of the skirt;
- and
- an expansion nut having a frustoconically-shaped skirt-engaging side wall and an inner threaded cavity into which the shank of the draw screw is threaded, whereby rotation of the draw screw through the inner cavity of the expansion nut causes radial movement of the skirt from the first retracted position to the second expanded position.
A dental assembly comprising:
- a dental implant including a skirt receivable within a bore provided in a jawbone of a patient, the skirt being radially movable within the bore from a first retracted position to a second expanded position, the dental implant further including an expansion nut having a frustoconically-shaped skirt-engaging side wall, and means for pulling the expansion nut into the skirt to cause radial movement of the skirt from the first retracted position to the second expanded position;
- an abutment collar including a main body portion positionable over the dental implant, a collar portion extending away from the dental implant relative to the main body portion, and a central cavity therethrough, the main body portion including means engagable with the dental implant for preventing relative rotation of the abutment collar relative to the dental implant;
- and
- an abutment screw having a head positionable in abutting relation to the abutment collar opposite the dental implant, and a shank that extends from the head through the central cavity of the abutment collar for connection to the dental implant.
Dependencies are inferred from the claim text.