US4294349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kit for repair of porcelain dental prostheses
Assignee: Den Mat Inc
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Filing: 1980-06-11
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Granted: 1981-10-13
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Expires: 2000-06-11
Abstract
Abstract A kit containing the components essential for repairing, in situ, damaged or fractured porcelain dental prostheses. Such repair includes cleaning, shaping, and priming the damaged area, applying a bonding agent preferably containing two silanes and a water-displacing solvent, then applying a filling agent comprising vitreous powder and a resin binder, allowing the agent to set and harden, and finishing.
Inventors
- 👤 Robert L. Ibsen
- 👤 William R. Glace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:50
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/005
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
83 words
A kit for the repair of damaged or fractured porcelain dental prosthesis comprising a box, a priming agent, a bonding agent to adhere a restorative agent to porcelain and metal, a pigmented masking restorative agent for said metal base, a white powder restorative agent, a resin for mixture with each said restorative agent to bond said masking agent and said white powder in turn, to said bonding agent, each of said agents and said resin being disposed in separate containers within said box.
Claim 2
Dependent Claim
83 words
A kit for the repair of damaged or fractured porcelain dental prosthesis comprising a box, a priming agent, a bonding agent to adhere a restorative agent to porcelain and metal, a pigmented masking restorative agent for said metal base, a white powder restorative agent, a resin for mixture with each said restorative agent to bond said masking agent and said white powder in turn, to said bonding agent, each of said agents and said resin being disposed in separate containers within said box.
Claim 3
Dependent Claim
19 words
The kit of claim 1 wherein there is a plurality of powders of various shades for matching tooth colors.
Claim 4
Dependent Claim
14 words
The kit of claim 1 wherein said priming agent is a weak acid solution.
Claim 5
Dependent Claim
13 words
The kit of claim 3 wherein said acid is a citric acid solution.
Claim 6
Dependent Claim
41 words
The kit of claim 1 wherein said bonding agent is a solution consisting essentially of from 0.5% to 25% by weight of said solution of gamma-methacryloxypropyltrimethoxysilane and from 0.25% to 12% by weight of said solution of gamma-glycidoxypropyltrimethoxysilane, and, remainder, butanol.
Claim 7
Dependent Claim
27 words
The kit of claim 5 wherein said bonding agent contains 5% by weight of said solution of gamma-methacryloxypropyltrimethoxysilane and 2.5% by weight of said solution of gamma-glycidoxypropyltrimethoxysilane.
Claim 8
Dependent Claim
30 words
The kit of claim 1 wherein said masking agent is an admixture of white powder and resin binder, said powder containing sufficient added pigment to render it opaque when applied.
Claim 9
Dependent Claim
11 words
The kit of claim 7 wherein said pigment is titanium dioxide.
Claim 10
Dependent Claim
15 words
The kit of claim 1 wherein said resin is essentially diluted ethoxylated bisphenol A dimethacrylate.
Claim 11
Dependent Claim
134 words
A kit for repiar in situ of a damaged or fractured porcelain dental prosthesis having a suitable base comprising in combination a closable container having a foamed resilient liner, said liner being provided with a plurality of recesses, a container in one said recess containing a priming agent, a squeeze bottle in a second said recess containing a bonding agent to adhere a restorative agent to said base, a container in a third recess containing an amount of white powder, a squeeze bottle in a fourth recess containing a liquid resin binder for said white powder, a container in a fifth recess holding an amount of a masking agent for said base, and a plastic measuring scoop, two plastic mixing instruments, and a supply of liquid-resistant paper in a sixth recess in said liner.
Claim 12
Dependent Claim
134 words
A kit for repiar in situ of a damaged or fractured porcelain dental prosthesis having a suitable base comprising in combination a closable container having a foamed resilient liner, said liner being provided with a plurality of recesses, a container in one said recess containing a priming agent, a squeeze bottle in a second said recess containing a bonding agent to adhere a restorative agent to said base, a container in a third recess containing an amount of white powder, a squeeze bottle in a fourth recess containing a liquid resin binder for said white powder, a container in a fifth recess holding an amount of a masking agent for said base, and a plastic measuring scoop, two plastic mixing instruments, and a supply of liquid-resistant paper in a sixth recess in said liner.
Claim 13
Dependent Claim
146 words
A kit for repair in situ of a damaged or fractured porcelain dental prosthesis having a suitable base comprising in combination a closable container having a foamed resilient liner, said liner being provided with a plurality of recesses, a container in one said recess containing a priming agent, a squeeze bottle in a second said recess containing a bonding agent to adhere a restorative agent to said base, a series of containers in a series of third recesses each containing an amount of white powder, each of a different shade of white, a squeeze bottle in a fourth recess containing a liquid resin binder for said white powders, a container in a fifth recess holding an amount of a masking agent for said base, and a plastic measuring scoop, two plastic mixing instruments, and a supply of liquid-resistant paper in a sixth recess in said liner.
Claim 14
Dependent Claim
146 words
A kit for repair in situ of a damaged or fractured porcelain dental prosthesis having a suitable base comprising in combination a closable container having a foamed resilient liner, said liner being provided with a plurality of recesses, a container in one said recess containing a priming agent, a squeeze bottle in a second said recess containing a bonding agent to adhere a restorative agent to said base, a series of containers in a series of third recesses each containing an amount of white powder, each of a different shade of white, a squeeze bottle in a fourth recess containing a liquid resin binder for said white powders, a container in a fifth recess holding an amount of a masking agent for said base, and a plastic measuring scoop, two plastic mixing instruments, and a supply of liquid-resistant paper in a sixth recess in said liner.
Claim 15
Dependent Claim
51 words
A restorative agent kit for repairing in situ a fractured or damaged porcelain dental prosthesis comprising a box, a series of white vitreous powders of different shades of white, and ethoxylated bisphenol A dimethacrylate resin, each of said powders and said resin being disposed in a separate container within said box.
Claim 16
Dependent Claim
51 words
A restorative agent kit for repairing in situ a fractured or damaged porcelain dental prosthesis comprising a box, a series of white vitreous powders of different shades of white, and ethoxylated bisphenol A dimethacrylate resin, each of said powders and said resin being disposed in a separate container within said box.
Claim 17
Dependent Claim
28 words
A restorative agent kit as in claim 12 wherein said vitreous powders are each of a variety of particle sizes ranging from about 2 to about 95 microns.
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) | 1984-10-12 | 1985-04-13 | 1985-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-12 | 1989-04-13 | 1989-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-12 | 1993-04-13 | 1993-10-13 | $7700.00 | Window Closed / Lapsed |