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US5482464A Expired / Lapsed US ⏱️ 0.0 years remaining

Dental resin sheet

Assignee: Individual
•
Filing: 1994-08-11
•
Granted: 1996-01-09
•
Expires: 2014-08-11
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Abstract

Abstract Disclosed here is a dental resin sheet that is attached onto the surface of a tooth or the veneering crown to form the surface of the tooth or the crown. The dental resin sheet is constructed of a plurality of resin layers laminated into a uniform thickness, and the resin layers correspond to the layered structure of the tooth, one for the cervical, another for the dentin and another for the incisal. By laminating the layers of different shading in inclination with respect to the surface of the sheet, a shade of a tooth is achieved. A single elongated continuous sheet may be cut to a plurality of pieces of sheet each of which matches the configuration of a tooth. A single sheet may be configured to be shaped to the surface configuration of a tooth.

Inventors

  • 👤 Shigeru Shimosawa
  • 👤 Akira Fujii

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 21:26
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/08

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 86 words
A dental resin sheet for use in dental surface prothesis of a tooth or a veneering crown comprising: a uniformly thick sheet made of a light curing resin having a plurality of dental laminated resin layers; a mount; and a light transmitting film, wherein the dental resin sheet is attached to the mount on a first surface of the dental sheet until the dental sheet is mated with the tooth, and wherein the light transmitting film is attached to a second surface of the dental sheet.
Claim 2
Dependent Claim 86 words
A dental resin sheet for use in dental surface prothesis of a tooth or a veneering crown comprising: a uniformly thick sheet made of a light curing resin having a plurality of dental laminated resin layers; a mount; and a light transmitting film, wherein the dental resin sheet is attached to the mount on a first surface of the dental sheet until the dental sheet is mated with the tooth, and wherein the light transmitting film is attached to a second surface of the dental sheet.
Claim 3
Dependent Claim 43 words
The dental resin sheet according to claim 1 wherein the resin layers are of different shades and the resin layers are laminated in a manner such that the resin layers are inclined with respect to the cross-sectional thickness of the dental resin sheet.
Claim 4
Dependent Claim 35 words
The dental resin sheet according to claim 1 wherein the dental resin sheet is an elongated continuous sheet made of laminated resin layers and is cut into a plurality of pieces of dental resin sheet.
Claim 5
Dependent Claim 26 words
The dental resin sheet according to claim 1 wherein each piece of dental resin sheet is beforehand shaped to the a surface configuration of the tooth.
Claim 6
Dependent Claim 19 words
The dental resin sheet according to claim 1 wherein the dental resin sheet is kept in a light-screening container.

References Cited (Backward Citations)

FR703460A Cited
US3265202A Cited
US4433959A Cited
US5151044A Cited
US5183397A Cited
US5183403A Cited
JPH0568687A Cited
US5332390A Cited
US5308243A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1999-01-08 1999-07-10 2000-01-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2003-01-08 2003-07-10 2004-01-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2007-01-08 2007-07-10 2008-01-09 $7700.00 Window Closed / Lapsed

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