US5639237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental prosthesis having indentations
Assignee: Individual
•
Filing: 1995-06-08
•
Granted: 1997-06-17
•
Expires: 2015-06-08
Abstract
Abstract A dental prosthesis, comprising a substantially implant rod constituted of a biocompatible and mechanically suitable material with an anchor end for implanting in a portion of a jawbone and a head end adapted for mounting an artificial tooth or prosthetic device, the rod having a plurality of indentations on at least a portion of the anchor end of the rod, the indentations having concave surfaces with outer perimeters that are substantially circular and at least partially coated with HA, and wherein the anchor end of the rod further contains threaded ridges.
Inventors
- 👤 Mark G Fontenot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0018
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
A dental prosthesis, comprising a substantially cylindrical rod constituted of a biocompatible and mechanically suitable material with an anchor end for implanting in a portion of a jawbone and a head end adapted for mounting an artificial tooth or prosthetic device, the rod having a plurality of indentations on at least a portion of the anchor end of the rod, the indentations having concave surfaces with outer perimeters that are substantially circular and at least partially coated with HA, and wherein the anchor end of the rod further contains threaded ridges.
Claim 2
Dependent Claim
91 words
A dental prosthesis, comprising a substantially cylindrical rod constituted of a biocompatible and mechanically suitable material with an anchor end for implanting in a portion of a jawbone and a head end adapted for mounting an artificial tooth or prosthetic device, the rod having a plurality of indentations on at least a portion of the anchor end of the rod, the indentations having concave surfaces with outer perimeters that are substantially circular and at least partially coated with HA, and wherein the anchor end of the rod further contains threaded ridges.
Claim 3
Dependent Claim
23 words
The prosthesis of claim 1, wherein HA is coated only on a concave surface within a perimeter of each the plurality of indentations.
Claim 4
Dependent Claim
34 words
The prosthesis of claim 1, wherein each indentation is shaped and sized so as to maximize the surface area within the perimeter of each indentation, and thereby minimize the surface area outside each indentation.
Claim 5
Dependent Claim
19 words
The prosthesis of claim 1, wherein the HA coating thickness ranges between about 15 microns and about 75 microns.
Claim 6
Dependent Claim
17 words
The prosthesis of claim 1, wherein the indentations comprise a carrier containing one or more medicinal agents.
Claim 7
Dependent Claim
13 words
The prosthesis of claim 5, wherein the medicinal agent comprises bone morphogenic protein.
Claim 8
Dependent Claim
13 words
The prosthesis of claim 5, wherein the medicinal agent comprises bone growth hormone.
Claim 9
Dependent Claim
12 words
The prosthesis of claim 5, wherein the medicinal agent comprises an antibiotic.
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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) | 2000-06-16 | 2000-12-16 | 2001-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-06-16 | 2004-12-16 | 2005-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-06-16 | 2008-12-16 | 2009-06-17 | $7700.00 | Window Closed / Lapsed |