US4773857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for securing a rubber dam
Assignee: The University of Texas System
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Filing: 1987-06-04
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Granted: 1988-09-27
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Expires: 2007-06-04
Abstract
Abstract A compact dam clamp and its method of application is disclosed, said dam clamp having in a preferred embodiment a side attachment face and a bottom face, said side attachment face being provided with one or more apertures provided therethrough to enable the clamp to be physically locked to the tooth upon application and curing of a non permanent composite resin. The use of the present device does not result in either hard or soft tissue damage, and may be used on even partially erupted teeth.
Inventors
- 👤 Hermon K. Herrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:04
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/80; A61C5/82
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
42 words
A dental dam clamp comprising: an L-shaped plastic member having a generally planar bottom face and a side face, said side face provided with an aperture disposed therethrough to aid in bonding the ide face to a tooth via a bonding compound.
Claim 2
Dependent Claim
42 words
A dental dam clamp comprising: an L-shaped plastic member having a generally planar bottom face and a side face, said side face provided with an aperture disposed therethrough to aid in bonding the ide face to a tooth via a bonding compound.
Claim 3
Dependent Claim
37 words
The dam clamp of claim 1 where the aperture disposed in the side face of the clamp is generally conical in configuration, with the smaller diameter end of the aperture terminating at the surface of the tooth.
Claim 4
Dependent Claim
27 words
The dam clamp of claim 1 where one or both faces of the clamp are composed of material which is substantially transparent or translucent to visible light.
Claim 5
Dependent Claim
27 words
The dam clamp of claim 1 where the bottom face is provided with an aperture extending therethrough so as to provide an attachment point for ligation material.
Claim 6
Dependent Claim
18 words
The dam clamp of claim 1 where the bottom face is provided with a radiographically opaque identification tab.
Claim 7
Dependent Claim
78 words
A dam clamp comprising: a clear plastic member having a bottom face and a side face; said bottom face being substantially planar and provided with one or more apertures disposed therethrough to allow the attachment of ligation material or the like; and said side face being generally arcuate in shape and being further provided with one or more apertures disposed therethrough to provide a means for bonding said side face to a tooth exterior via a bonding compound.
Claim 8
Dependent Claim
78 words
A dam clamp comprising: a clear plastic member having a bottom face and a side face; said bottom face being substantially planar and provided with one or more apertures disposed therethrough to allow the attachment of ligation material or the like; and said side face being generally arcuate in shape and being further provided with one or more apertures disposed therethrough to provide a means for bonding said side face to a tooth exterior via a bonding compound.
Claim 9
Dependent Claim
19 words
The dam clamp of claim 6 where the bottom face is provided with a radiographic identification tab disposed therein.
Claim 10
Dependent Claim
41 words
A dam clamp comprising: an L-shaped member having a bottom face and a side face, said bottom face being substantially planar in configuration, said side face adapted to attach a single contact surface of a given tooth via a bonding compound.
Claim 11
Dependent Claim
41 words
A dam clamp comprising: an L-shaped member having a bottom face and a side face, said bottom face being substantially planar in configuration, said side face adapted to attach a single contact surface of a given tooth via a bonding compound.
Claim 12
Dependent Claim
34 words
The dam clamp of claim 8 where the side face is provided with an aperture disposed therethrough so as to enhance the affixation of the side face to an exterior face of a tooth.
Claim 13
Dependent Claim
40 words
The dam clamp of claim 9 where the aperture disposed in the side face is substantially conical in configuration, with the end of the aperture having the smaller diameter being situated on the tooth contacting surface of said side face.
Claim 14
Dependent Claim
25 words
The dam clamp 8 where one or both faces of the clamp are composed of a material which is transparent or translucent to visible light.
Claim 15
Dependent Claim
25 words
The dam clamp 8 where one or both faces of the clamp are composed of a material which is transparent or translucent to visible light.
Claim 16
Dependent Claim
29 words
The dam clamp of claim 8 where the bottom face is provided with one or more apertures disposed therethrough so as to provide an attachment point for ligation material.
Claim 17
Dependent Claim
18 words
The dam clamp of claim 8 where the bottom face is provided with a radiographically opaque identification tab.
Claim 18
Independent Claim
85 words
A method for securing a rubber dam over and around a tooth using a dam clamp comprised of a L-shaped member having a bottom face and a side face, the method comprising: placing a rubber dam over and around a tooth such that a secure elastic fit is achieved; chemically etching the enamel of the tooth such as to produce an attachment site; affixing the clamp to the tooth utilizing a non permanent composite resin; curing said resin in situ by use of visible light.
Claim 19
Independent Claim
85 words
A method for securing a rubber dam over and around a tooth using a dam clamp comprised of a L-shaped member having a bottom face and a side face, the method comprising: placing a rubber dam over and around a tooth such that a secure elastic fit is achieved; chemically etching the enamel of the tooth such as to produce an attachment site; affixing the clamp to the tooth utilizing a non permanent composite resin; curing said resin in situ by use of visible light.
Claim 20
Dependent Claim
28 words
A dam clamp comprising: an L-shaped member having a side face and a bottom face, said clamp adapted to be bonded to a tooth via a bonding compound.
Claim 21
Dependent Claim
28 words
A dam clamp comprising: an L-shaped member having a side face and a bottom face, said clamp adapted to be bonded to a tooth via a bonding compound.
Claim 22
Dependent Claim
24 words
The dam clamp of claim 15 further comprising an aperture disposed in said side face to aid in bonding the clamp to a tooth.
Claim 23
Dependent Claim
13 words
The dam clamp of claim 16 wherein said aperture is conical in configuration.
Claim 24
Dependent Claim
23 words
The dam clamp of claim 15 further comprising an aperture disposed in said bottom face to provide an attachment point for ligation material.
Claim 25
Dependent Claim
18 words
The dam clamp of claim 15 further comprising a radiographically opaque identification tab disposed in said bottom face.
Claim 26
Dependent Claim
27 words
The dam clamp of claim 15 wherein one or both faces of the clamp are composed of materials which are substantially transparent or translucent to visible light.
Claim 27
Dependent Claim
40 words
A dam clamp comprising two L-shaped plastic members joined together by a U-shaped bridge, said plastic members each having a side face and a bottom face, said side faces adapted to be bonded to a tooth via a bonding compound.
Claim 28
Dependent Claim
40 words
A dam clamp comprising two L-shaped plastic members joined together by a U-shaped bridge, said plastic members each having a side face and a bottom face, said side faces adapted to be bonded to a tooth via a bonding compound.
Claim 29
Dependent Claim
24 words
The dam clamp of claim 21 further comprising an aperture disposed through said side faces to aid in bonding the clamp to a tooth.
Claim 30
Dependent Claim
18 words
The dam clamp of claim 21 further including a radiographically opaque identification tab disposed in said bottom face.
Claim 31
Dependent Claim
57 words
A dam clamp comprising: a bottom surface and two side surfaces, said side surfaces joined to each other and to the bottom surface in such a fashion so as to allow the clamp to be secured in the interproximal area between two teeth, said side surfaces adapted to be bonded to a tooth via a bonding compound.
Claim 32
Dependent Claim
57 words
A dam clamp comprising: a bottom surface and two side surfaces, said side surfaces joined to each other and to the bottom surface in such a fashion so as to allow the clamp to be secured in the interproximal area between two teeth, said side surfaces adapted to be bonded to a tooth via a bonding compound.
Claim 33
Dependent Claim
27 words
The dam clamp of claim 24 further including an aperture disposed in one or both side surfaces to aid in bonding the clamp to a given tooth.
Claim 34
Dependent Claim
23 words
The dam clamp of claim 24 further including an aperture disposed in said bottom surface to provide an attachment point for ligation material.
Claim 35
Dependent Claim
17 words
The dam clamp of claim 24 further including a radiographically opaque tab disposed in said bottom face.
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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) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |