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US5419701A Expired / Lapsed US ⏱️ 0.0 years remaining

Endosteal dental implant with supplementary stabilizer

Assignee: Individual
•
Filing: 1991-12-19
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Granted: 1995-05-30
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Expires: 2011-12-19
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Abstract

Abstract This invention comprises a post for supporting dental superstructures. There are a set of legs integral with the post. The legs are structured to fit into cavities formed in the bony structure and become osseointegrated with the bone. This dental prosthesis provides attachment structures for attaching a bridge or other superstructures, or to form a portion of the superstructures.

Inventors

  • 👤 Robert H. Propper

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:43
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0018; A61C8/0031; A61C8/0003; A61C8/0009

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 243 words
A custom endosteal dental implant for implantation in a defect in bony structure of a human law, said bony structure being overlaid by gingival tissue, said gingival tissue having a dimension of thickness, said bony structure including cortical bone having an outer surface and underlying medullary bone, said defect extending through said surface and cortical bone and into said medullary bone, said defect having a boundary wall, and a lateral extension having a lateral extension wall extending away from said boundary wall, said lateral extension opening onto said surface so as to form a laterally-extending recess having a dimension of depth, said implant comprising a body having an outer implant surface, said outer implant surface comprising osseointegratable material, said implant including an insert portion so shaped as to fit snugly into a substantial proportion of said boundary wall in surface-to-surface contiguity therewith, and a lateral portion so shaped as to fit snugly in said laterally-extending recess in surface-to-surface contiguity with a substantial proportion of said lateral extension wall, all of said insert portion and of said lateral portion lying in said bone, beneath the said surface of said cortical bone, and a post portion having a dimension of height sufficient only in excess of the dimension of thickness of said gingival tissue sufficient to enable suturing of said gingival tissue around said post portion, the shape of said implant where it abuts bony structure having been derived from an impression of the defect.
Claim 2
Dependent Claim 243 words
A custom endosteal dental implant for implantation in a defect in bony structure of a human law, said bony structure being overlaid by gingival tissue, said gingival tissue having a dimension of thickness, said bony structure including cortical bone having an outer surface and underlying medullary bone, said defect extending through said surface and cortical bone and into said medullary bone, said defect having a boundary wall, and a lateral extension having a lateral extension wall extending away from said boundary wall, said lateral extension opening onto said surface so as to form a laterally-extending recess having a dimension of depth, said implant comprising a body having an outer implant surface, said outer implant surface comprising osseointegratable material, said implant including an insert portion so shaped as to fit snugly into a substantial proportion of said boundary wall in surface-to-surface contiguity therewith, and a lateral portion so shaped as to fit snugly in said laterally-extending recess in surface-to-surface contiguity with a substantial proportion of said lateral extension wall, all of said insert portion and of said lateral portion lying in said bone, beneath the said surface of said cortical bone, and a post portion having a dimension of height sufficient only in excess of the dimension of thickness of said gingival tissue sufficient to enable suturing of said gingival tissue around said post portion, the shape of said implant where it abuts bony structure having been derived from an impression of the defect.
Claim 3
Dependent Claim 37 words
A custom implant according to claim 1 in which said insert portion has an outer wall at least a portion of which is the geometrical complement of said substantial portion of said boundary wall of said defect.
Claim 4
Dependent Claim 24 words
A custom implant according to claim 2 in which said defect is at least a part of a socket which once held a tooth.
Claim 5
Dependent Claim 17 words
A custom implant according to claim 2 in which said laterally-extending recess extends transversely across the jaw.
Claim 6
Dependent Claim 27 words
A custom implant according to claim 4 in which said laterally-extending recess extends transversely across the jaw on both sides of said implant in a saddle-like manner.
Claim 7
Dependent Claim 16 words
A custom implant according to claim 2 in which said laterally-extending recess extends along the jaw.
Claim 8
Dependent Claim 18 words
A custom implant according to claim 1 in which said post is adapted to receive a next structure.
Claim 9
Dependent Claim 256 words
A custom endosteal dental implant for implantation in a defect in bony structure of a human jaw, said bony structure being overlaid by gingival tissue, said gingival tissue having a dimension of thickness, said bony structure including cortical bone having an outer surface and underlying medullary bone, said defect extending through said surface and cortical bone and into said medullary bone, said defect having a boundary wall, and a lateral extension having a lateral extension wall extending away from said boundary wall, said lateral extension opening onto said surface so as to form a laterally-extending recess having a dimension of depth, said implant comprising a body having an outer implant surface, said outer implant surface comprising osseointegratable material, said implant including at least two spaced apart insert portions each so shaped as to fit snugly into a substantial proportion of said boundary wall in surface-to-surface contiguity therewith, and a lateral portion integral with said insert portions joining them together so shaped as to fit snugly in said laterally-extending recess in surface-to-surface contiguity with a substantial proportion of said lateral extension wall, all of said insert portion and of said lateral portion lying in said bone, beneath the said surface of said cortical bone, and a post portion having a dimension of height sufficient only in excess of the dimension of thickness of said gingival tissue sufficient to enable suturing of said gingival tissue around said post portion, the shape of said implant where it abuts bony structure having been derived from an impression of the defect.
Claim 10
Dependent Claim 256 words
A custom endosteal dental implant for implantation in a defect in bony structure of a human jaw, said bony structure being overlaid by gingival tissue, said gingival tissue having a dimension of thickness, said bony structure including cortical bone having an outer surface and underlying medullary bone, said defect extending through said surface and cortical bone and into said medullary bone, said defect having a boundary wall, and a lateral extension having a lateral extension wall extending away from said boundary wall, said lateral extension opening onto said surface so as to form a laterally-extending recess having a dimension of depth, said implant comprising a body having an outer implant surface, said outer implant surface comprising osseointegratable material, said implant including at least two spaced apart insert portions each so shaped as to fit snugly into a substantial proportion of said boundary wall in surface-to-surface contiguity therewith, and a lateral portion integral with said insert portions joining them together so shaped as to fit snugly in said laterally-extending recess in surface-to-surface contiguity with a substantial proportion of said lateral extension wall, all of said insert portion and of said lateral portion lying in said bone, beneath the said surface of said cortical bone, and a post portion having a dimension of height sufficient only in excess of the dimension of thickness of said gingival tissue sufficient to enable suturing of said gingival tissue around said post portion, the shape of said implant where it abuts bony structure having been derived from an impression of the defect.
Claim 11
Dependent Claim 21 words
A custom implant according to claim 8 in which another lateral portion extends from each insert portion transversely across the jaw.

References Cited (Backward Citations)

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EP0024008A1 Cited
US4492577A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-05-29 1998-11-28 1999-05-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-05-29 2002-11-28 2003-05-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-05-29 2006-11-28 2007-05-30 $7700.00 Window Closed / Lapsed

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