Patent US3797114A successfully refreshed from Google Patents.
US3797114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable mount for a dental cap and prosthodontic procedure utilizing the same
Assignee: Individual
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Filing: 1972-09-21
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Granted: 1974-03-19
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Expires: 1992-09-21
Abstract
Abstract A dental cap, which may be an individual cap, or an end or intermediate cap of a bridge, is detachably secured by a fastener to a coping cemented on a prepared tooth. The fastener has onehalf thereof mounted on the undersurface of the cap and the other half, through the medium of the coping, on the upper surface of the prepared tooth. A ''''prepared'''' tooth constitutes that part of a tooth which, in accordance with conventional dental practices, has had some or all of the enamel removed but which has a substantial residual bulk extending for a considerable distance above the gingival margin. A prepared tooth usually is vital, that is to say, alive, so that the present invention maintains a large part of the integrity of a tooth structure and does not tend, as has been the case with previous detachable caps, to leave only the root of a tooth which is highly susceptible to various forms of attack and stress damage and is not as inherently strong as a prepared tooth.
Inventors
- 👤 L Wiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:45
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/225; A61C13/265; A61C13/2656
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
In combination, a coping for permanent cemented attachment to an underlying prepared natural tooth the crown enamel of which is removed and the upper surface of which is matched by the undersurface of the coping, a dental cap having a socket at its undersurface which matches the upper surface of the coping, a detachable fastener having two cooperable halves which can be readily coupled to or uncoupled from each other, means permanently securing one of the coupling halves to the cap in the socket and means permanently securing the mating coupling half to the coping with the coupling halves being in alignment when the cap is in registry with the coping, the portions of the cap and coping on which the coupling halves are secured being recessed to receive said detachable fastener, a rim around the recess in the coping, said coping and socket being aspherical to prevent relative rotation thereof.
Claim 2
Dependent Claim
151 words
In combination, a coping for permanent cemented attachment to an underlying prepared natural tooth the crown enamel of which is removed and the upper surface of which is matched by the undersurface of the coping, a dental cap having a socket at its undersurface which matches the upper surface of the coping, a detachable fastener having two cooperable halves which can be readily coupled to or uncoupled from each other, means permanently securing one of the coupling halves to the cap in the socket and means permanently securing the mating coupling half to the coping with the coupling halves being in alignment when the cap is in registry with the coping, the portions of the cap and coping on which the coupling halves are secured being recessed to receive said detachable fastener, a rim around the recess in the coping, said coping and socket being aspherical to prevent relative rotation thereof.
Claim 3
Dependent Claim
24 words
A combination as set forth in claim 1 wherein the detachable fastener is a snap fastener including a male half and a female half.
Claim 4
Dependent Claim
32 words
A combination as set forth in claim 2 wherein the male snap fastener half is permanently attached to the coping and the female snap fastener half is permanently attached to the cap.
Claim 5
Dependent Claim
78 words
A combination as set forth in claim 2 wherein two copings are provided which are cemented to two spaced prepared natural teeth, wherein two caps are included, one associated with one coping and the other with the other coping, wherein two detachable fastener halves are associated, one with one coping and cap and the other with the other coping and cap, and wherein artificial teeth are provided between the two caps to constitute therewith a removable prosthodontic bridge.
Claim 6
Dependent Claim
189 words
In combination, a prepared natural tooth having the root thereof embedded in a patient''s gum, said tooth having a prepared portion with the crown enamel removed and having a large residual bulk extending substantially above the gingival margin, a coping the undersurface of which is matched to the upper surface of the prepared tooth, cement permanently attaching the coping to the prepared tooth, said coping having an upper recess, a rim around the recess in the coping, said prepared tooth having a matching recess, a dental cap having a socket at its undersurface and recess in the socket, said cap, except at the recess therein, having an undersurface which matches the upper surface of the coping, a detachable fastener having two cooperable halves which can be readily coupled to or uncoupled from each other, means permanently securing one of the coupling halves in the recess in the socket and means permanently securing the mating coupling half in the recess in the coping with the coupling halves being in alignment when the cap is in registry with the coping, said coping and socket being aspherical to prevent relative rotation thereof.
Claim 7
Dependent Claim
189 words
In combination, a prepared natural tooth having the root thereof embedded in a patient''s gum, said tooth having a prepared portion with the crown enamel removed and having a large residual bulk extending substantially above the gingival margin, a coping the undersurface of which is matched to the upper surface of the prepared tooth, cement permanently attaching the coping to the prepared tooth, said coping having an upper recess, a rim around the recess in the coping, said prepared tooth having a matching recess, a dental cap having a socket at its undersurface and recess in the socket, said cap, except at the recess therein, having an undersurface which matches the upper surface of the coping, a detachable fastener having two cooperable halves which can be readily coupled to or uncoupled from each other, means permanently securing one of the coupling halves in the recess in the socket and means permanently securing the mating coupling half in the recess in the coping with the coupling halves being in alignment when the cap is in registry with the coping, said coping and socket being aspherical to prevent relative rotation thereof.
Claim 8
Dependent Claim
24 words
A combination as set forth in claim 5 wherein the detachable fastener is a snap fastener including a male half and a female half.
Claim 9
Dependent Claim
32 words
A combination as set forth in claim 6 wherein the male snap fastener half is permanently attached to the coping and the female snap fastener half is permanently attached to the cap.
Claim 10
Dependent Claim
78 words
A combination as set forth in claim 7 wherein two copings are provided which are cemented to two spaced prepared natural teeth, wherein two caps are included, one associated with one coping and the other with the other coping, wherein two detachable fastener halves are associated, one with one coping and cap and the other with the other coping and cap, and wherein artificial teeth are provided between the two caps to constitute therewith a removable prosthodontic bridge.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |