US4514174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for posterior dental restoration employing light curable packable compositions
Assignee: Dentsply Research and Development Corp
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Filing: 1982-11-19
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Granted: 1985-04-30
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Expires: 2002-11-19
Abstract
Abstract Novel processes for the restoration of teeth particularly posterior teeth, wherein the use of a matrix band is required, are provided employing one component, packable, actinic light curable, resin-based restorative compositions. Such methods are now capable, for the time, of employing resin-based restoratives in the posterior restoration of teeth wherein the packability of the restorative composition enable the deformation of a matrix to allow substantial restoration of the original conformation of the tooth. Packable one component actinic light curable resin-based restorative compositions are provided.
Inventors
- 👤 Emery W. Dougherty
- 👤 John B. Heyde
- 👤 Richard J. Bennett
- 👤 Roy L. Smith
- 👤 Louis H. Tateosian
- 👤 George T. Eden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:27
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/80; A61C5/85; A61C5/60; A61C5/66; A61C2202/00; A61C2202/01
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
130 words
A method for the restoration of a tooth comprising: selecting a tooth in need of restoration, said tooth having an original conformation having a top surface and side surfaces; removing a portion of said tooth to form a cavity preparation, said cavity preparation communicating from said top surface and to at least a first side surface of a said tooth; surrounding the side surfaces of said tooth with a matrix, said matrix substantially completely covering said cavity where it communicates with said first side surface; applying to said cavity a light curable restorative composition having a resistance to penetration of at least about 175 g./mm 2 ; compacting said composition to deform said matrix; and hardening said composition by exposure to actinic light whereby said original conformation is substantially restored.
Claim 2
Independent Claim
130 words
A method for the restoration of a tooth comprising: selecting a tooth in need of restoration, said tooth having an original conformation having a top surface and side surfaces; removing a portion of said tooth to form a cavity preparation, said cavity preparation communicating from said top surface and to at least a first side surface of a said tooth; surrounding the side surfaces of said tooth with a matrix, said matrix substantially completely covering said cavity where it communicates with said first side surface; applying to said cavity a light curable restorative composition having a resistance to penetration of at least about 175 g./mm 2 ; compacting said composition to deform said matrix; and hardening said composition by exposure to actinic light whereby said original conformation is substantially restored.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said light is visible light.
Claim 4
Dependent Claim
20 words
The method of claim 1 whereby said applying, compacting, and hardening steps are performed, in sequence, a plurality of times.
Claim 5
Dependent Claim
35 words
The method of claim 1 wherein said applying step is preceded by the additional step of treating at least a portion of the tooth interior to said cavity with an actinic light curable bonding agent.
Claim 6
Dependent Claim
19 words
The method of claim 4 wherein said agent and said composition are hardened simultaneously by exposure to actinic light.
Claim 7
Dependent Claim
32 words
The method of claim 4 wherein said treating step is preceded by the additional step of etching at least a portion of the tooth interior to said cavity with an acidic medium.
Claim 8
Dependent Claim
12 words
The method of claim 1 wherein said tooth is a posterior tooth.
Claim 9
Dependent Claim
25 words
The method of claim 1 wherein said exposure comprises transmitting at least a portion of said light through at least a portion of the tooth.
Claim 10
Dependent Claim
18 words
The method of claim 1 wherein said conformation includes a surface in interproximal contact with an adjacent tooth.
Claim 11
Dependent Claim
21 words
The method of claim 1 wherein said composition has a resistance to penetration of at least about 200 g/mm 2 .
Claim 12
Dependent Claim
19 words
The method of claim 1 wherein said cavity preparation communicates with at least a plurality of said side surfaces.
Claim 13
Dependent Claim
19 words
Method of claim 11 wherein said cavity communicates with at least a portion of each of said side surfaces.
Claim 14
Dependent Claim
11 words
The method of claim 1 wherein said light is visible light.
Claim 15
Independent Claim
72 words
A method for the restoration of a tooth comprising: selecting a tooth in need of restoration; removing a portion of said tooth to form a cavity preparation; applying to said cavity preparation a light curable restorative composition having a resistance to penetration of at least about 175 g./mm 2 ; compacting said composition and polymerizing said composition by exposure thereof to actinic light for a time sufficient substantially to harden said composition.
Claim 16
Independent Claim
72 words
A method for the restoration of a tooth comprising: selecting a tooth in need of restoration; removing a portion of said tooth to form a cavity preparation; applying to said cavity preparation a light curable restorative composition having a resistance to penetration of at least about 175 g./mm 2 ; compacting said composition and polymerizing said composition by exposure thereof to actinic light for a time sufficient substantially to harden said composition.
Claim 17
Dependent Claim
11 words
The method of claim 14 wherein said light is visible light.
Claim 18
Dependent Claim
20 words
The method of claim 14 wherein said applying compacting and polymerizing steps are performed, in sequence, a plurality of times.
Claim 19
Dependent Claim
36 words
The method of claim 14 wherein said applying step is preceded by the additional step of treating at least a portion of the tooth interior to said cavity preparation with an actinic light curable bonding agent.
Claim 20
Dependent Claim
19 words
The method of claim 17 wherein said agent and said composition are hardened simultaneously by exposure to actinic light.
Claim 21
Dependent Claim
33 words
The method of claim 17 wherein said treating step is preceded by the additional step of etching at least a portion of the tooth interior to said cavity preparation with an acidic medium.
Claim 22
Dependent Claim
12 words
The method of claim 14 wherein said tooth is a posterior tooth.
Claim 23
Dependent Claim
12 words
The method of claim 14 wherein said tooth is an anterior tooth.
Claim 24
Dependent Claim
25 words
The method of claim 14 wherein said exposure comprises transmitting at least a portion of said light through at least a portion of the tooth.
Claim 25
Dependent Claim
21 words
The method of claim 14 wherein said composition has a resistance to penetration of at least about 200 g/mm 2 .
Claim 26
Dependent Claim
11 words
The method of claim 14 wherein said light is ultraviolet light.
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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) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |