Patent US4457713A successfully refreshed from Google Patents.
US4457713A
Expired / Lapsed
US
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Denture forming method
Assignee: Individual
•
Filing: 1982-09-29
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Granted: 1984-07-03
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Expires: 2002-09-29
Abstract
Abstract Disclosed is a method for forming a denture in-situ in the mouth of a dental patient. The method starts with a try-in of the teeth in wax formed to duplicate in shape the desired form of the finished denture. An in-situ impression of the try-in in alginate is followed by placing of the teeth in the resultant impressions in the alginate and subsequent acrylic buildup and in-situ forming and setting of the final acrylic denture.
Inventors
- 👤 Sidney Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:09
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/0001
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
A method for forming a denture in-situ in the mouth of a patient comprising: (A) providing a try-in of teeth set in a wax form, said try-in duplicating in shape the final desired denture, (B) placing said try-in on the edentulous gum in the patient's mouth, (C) with said try-in in place, forming an impression of same in alginate held in a tray, (D) removing said tray, alginate, and try-in from the mouth and placement of the teeth from said try-in in the tooth impressions formed in the alginate, (E) coating the exposed alginate impression and exposed roots of the teeth protruding above the alginate with curable liquid resins and forming said acrylic resin to the desired shape by implacing said tray with alginate, teeth and liquid acrylic resin in the patient's mouth until the acrylic has cured.
Claim 2
Independent Claim
138 words
A method for forming a denture in-situ in the mouth of a patient comprising: (A) providing a try-in of teeth set in a wax form, said try-in duplicating in shape the final desired denture, (B) placing said try-in on the edentulous gum in the patient's mouth, (C) with said try-in in place, forming an impression of same in alginate held in a tray, (D) removing said tray, alginate, and try-in from the mouth and placement of the teeth from said try-in in the tooth impressions formed in the alginate, (E) coating the exposed alginate impression and exposed roots of the teeth protruding above the alginate with curable liquid resins and forming said acrylic resin to the desired shape by implacing said tray with alginate, teeth and liquid acrylic resin in the patient's mouth until the acrylic has cured.
Claim 3
Dependent Claim
33 words
The method of claim 1 in which a hard acrylic resin and a semi-rigid acrylic resin are added sequentially to the alginate impression prior to implacing the tray back into the patient's mouth.
Claim 4
Dependent Claim
23 words
The method of claim 2 in which a cloth shim is placed on the curable hard acrylic prior to adding the semi-rigid acrylic.
Claim 5
Dependent Claim
22 words
The method of claim 3 in which the shim is coated with acrylic monomer prior to its placement on the hard acrylic.
Claim 6
Dependent Claim
80 words
The method of claim 1 in which (A) the acrylic resin is added to the tray, (B) a spacer is placed thereon and the tray is placed in the patient's mouth while the acrylic cures, (C) removing the tray from the patient's mouth and the spacer from over the acrylic in the tray, (D) adding a second acrylic layer to the tray, and (E) placing the tray in the patient's mouth for final forming and curing of the acrylic resin.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein the denture formed is an upper denture.
Claim 8
Dependent Claim
13 words
The method of claim 1 wherein the denture formed is a lower denture.
Claim 9
Dependent Claim
13 words
The method of claim 1 wherein the denture formed is a partial denture.
Claim 10
Dependent Claim
26 words
The method of claim 1 wherein a wax bite plate is added to the bottom of the tray prior to taking the impression of the try-in.
References Cited (Backward Citations)
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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) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |