US5427527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental implant method of installation
Assignee: Zimmer Dental Inc
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Filing: 1993-05-25
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Granted: 1995-06-27
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Expires: 2013-05-25
Abstract
Abstract A dental implant system utilizes a threaded implant which is cylindrical in form and has a large number of longitudinal channels so it can be (i) screwed into place in a bore hole in the patient's bone, (ii) pushed into place or (iii) first pushed into place and then turned to anchor it in bone ridges formed when it is pushed into place. Also an implant is given a conical shape it can be used for supporting artificial teeth in a residual ridge crest of a patient by drilling a smaller than normal cylindrical hole in the crest and carefully inserting the conical implant so that the bone is spread and makes additional contact with the implant.
Inventors
- 👤 Gerald A. Niznick
- 👤 Anthony Rinaldi
- 👤 Leonard I. Linkow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:55
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/0018; A61C8/0022
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
127 words
A method of mounting an implant in a thin residual alveolar ridge crest, comprising: forming a cylindrical bore hole in the ridge crest that is of a size that it is well within the available bone; introducing a conical threaded implant in to the bore hole in the patient's ridge crest, a lower part of the implant being smaller in diameter than the bore hole and an upper part of the implant being greater in diameter than the bore hole; installing said implant into said bore hole such that said installation causes the upper part of the implant to spread the bone about the bore hole, and after the implant is fully installed, allowing a period of time to pass sufficient for the spread bone to heal.
Claim 2
Independent Claim
127 words
A method of mounting an implant in a thin residual alveolar ridge crest, comprising: forming a cylindrical bore hole in the ridge crest that is of a size that it is well within the available bone; introducing a conical threaded implant in to the bore hole in the patient's ridge crest, a lower part of the implant being smaller in diameter than the bore hole and an upper part of the implant being greater in diameter than the bore hole; installing said implant into said bore hole such that said installation causes the upper part of the implant to spread the bone about the bore hole, and after the implant is fully installed, allowing a period of time to pass sufficient for the spread bone to heal.
Claim 3
Dependent Claim
19 words
The method of claim 1, wherein the taper of said conical implant ranges from about 1° to about 10°.
Claim 4
Dependent Claim
11 words
The method of claim 2, wherein the taper is about 2°.
References Cited (Backward Citations)
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US4547157A
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Cited
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Cited
FR2667499A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-06-26 | 1998-12-26 | 1999-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-06-26 | 2002-12-26 | 2003-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-06-26 | 2006-12-26 | 2007-06-27 | $7700.00 | Window Closed / Lapsed |