Patent US5154612A successfully refreshed from Google Patents.
US5154612A
Expired / Lapsed
US
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Assignee: Nobel Biocare AB
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Filing: 1991-01-16
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Granted: 1992-10-13
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Expires: 2011-01-16
Abstract
Abstract A device made of a tissue-compatible material is intended to temporarily cover a spacer of a dental implant during a period of incorporation of the dental implant, preferably in a single-tooth replacement. The base section of the device is designed in such a way that it guides the healing of the mucous membrane to assume a contour such that securing of the final crown is facilitated, and a certain possibility of controlling the seam between the final crown and the spacer is afforded. The device is preferably made of an elastic material for good clamp fitting on the spacer, as a result of which the use of paste, dental cement or the like is eliminated.
Inventors
- 👤 Lennart Carlsson
- 👤 Lars Jorneus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:06
CPC Classifications
A; A61; A61C; A61C8/00; A61C8/008
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
A device made of a tissue-compatible material and intended to temporarily cover a spacer of a dental implant during a period of incorporation of said dental implant and to support a temporary dental crown, said device comprising: a cup-shaped base portion having its outer wall which is wider than a base section of a final crown and has a length which extends a predetermined distance below the edge of the mucous membrane such as to guide the healing of the mucous membrane during the incorporation period for forming a pocket in the mucous membrane which facilitates securing of the final dental crown and allows for controlling of a seam between the final dental crown and said spacer, and an upper portion extending upwardly from said base portion for supporting said temporary dental crown during the healing period, and wherein at least said cup-shaped portion is made of an elastic material such that upon insertion of said device onto said spacer a clamp fitting is obtained between said cup shaped portion and said spacer.
Claim 2
Independent Claim
173 words
A device made of a tissue-compatible material and intended to temporarily cover a spacer of a dental implant during a period of incorporation of said dental implant and to support a temporary dental crown, said device comprising: a cup-shaped base portion having its outer wall which is wider than a base section of a final crown and has a length which extends a predetermined distance below the edge of the mucous membrane such as to guide the healing of the mucous membrane during the incorporation period for forming a pocket in the mucous membrane which facilitates securing of the final dental crown and allows for controlling of a seam between the final dental crown and said spacer, and an upper portion extending upwardly from said base portion for supporting said temporary dental crown during the healing period, and wherein at least said cup-shaped portion is made of an elastic material such that upon insertion of said device onto said spacer a clamp fitting is obtained between said cup shaped portion and said spacer.
Claim 3
Dependent Claim
27 words
A device according to claim 1, wherein said upper portion is provided with retention elements for allowing positive locking between said device and said temporary dental crown.
Claim 4
Dependent Claim
24 words
A device according to claim 2, wherein said upper portion also includes break notches for facilitating shortening of the length of said upper portion.
Claim 5
Dependent Claim
21 words
A device according to claim 2, wherein said retention elements include a plurality of retention knobs made of an elastic material.
Claim 6
Dependent Claim
21 words
A device according to claim 3, wherein said retention elements include a plurality of retention knobs made of an elastic material.
References Cited (Backward Citations)
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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) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |