Patent US5382164A successfully refreshed from Google Patents.
US5382164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making dental restorations and the dental restoration made thereby
Assignee: Individual
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Filing: 1993-07-27
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Granted: 1995-01-17
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Expires: 2013-07-27
Abstract
Abstract The present invention relates to a method of making dental restorations and the dental restoration made by the method comprising temporarily repairing a tooth area to be restored to a desired final shape, taking a first impression of the tooth area to be restored, preparing the tooth to be restored and forming a second impression within first impression with material that is non-adherent to the first impression material. The first impression and the second impression are separated. The second impression is scanned to electronically obtain an image of the final restoration.
Inventors
- 👤 Sylvan S. Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:27
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/0003; A61C13/0004; A61C5/00; A61C5/70; A61C5/77; A61C9/00; A61C9/004; A61C9/0046; A61C9/0053
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
86 words
A method of making dental restorations comprising the steps of temporarily repairing a tooth area to be restored to a desired shape of a final restoration, taking a first impression of the tooth area to be restored, preparing the tooth area to be restored for restoration, forming a second impression within the first impression with material that is non-adherent to the first impression, separating the first impression from the second impression and optically scanning the second impression to electronically obtain an image of the final restoration.
Claim 2
Independent Claim
86 words
A method of making dental restorations comprising the steps of temporarily repairing a tooth area to be restored to a desired shape of a final restoration, taking a first impression of the tooth area to be restored, preparing the tooth area to be restored for restoration, forming a second impression within the first impression with material that is non-adherent to the first impression, separating the first impression from the second impression and optically scanning the second impression to electronically obtain an image of the final restoration.
Claim 3
Dependent Claim
25 words
A method of making dental restorations according to claim 1 further comprising the steps of adjusting the margins after forming the first and second impressions.
Claim 4
Dependent Claim
26 words
A method of making dental restorations according to claim 1 further comprising using a computer to generate at least one graphic representation of the final restoration.
Claim 5
Dependent Claim
21 words
A method of making dental restorations according to claim 1 further comprising using computer controlled milling to create the final restoration.
Claim 6
Dependent Claim
33 words
A method of making dental restorations according to claim 1 wherein the second impression is a replica of the tooth area to be restored in its original form and as prepared for restoration.
Claim 7
Dependent Claim
20 words
A method of making dental restorations according to claim 1 wherein the first impression is made with an elastomeric medium.
Claim 8
Dependent Claim
18 words
A method of making dental restorations according to claim 6 wherein the elastomeric medium is a polyvinyl siloxane.
Claim 9
Dependent Claim
20 words
A method of making dental restorations according to claim 1 wherein the second impression is made from an acrylic substance.
Claim 10
Dependent Claim
18 words
A method of making dental restorations according to claim 8 wherein the acrylic substance is an alkyl methacrylate.
Claim 11
Independent Claim
113 words
A method of making dental restoration comprising the steps of temporarily a repairing tooth area to be restored to desired shape of a final restoration, taking a first impression of the tooth area to be restored with an elastomeric medium comprising, polyvinyl siloxane, preparing the tooth area to be restored for restoration, forming a second impression with an acrylic like substance comprising alkyl methacrylate, the second impression being formed within the first impression, separating the first impression from the second impression, optically scanning the second impression for creating an image of the restoration, using a computer to generate a graphic representation of the restoration, and using computer controlled milling to create the restoration.
Claim 12
Independent Claim
113 words
A method of making dental restoration comprising the steps of temporarily a repairing tooth area to be restored to desired shape of a final restoration, taking a first impression of the tooth area to be restored with an elastomeric medium comprising, polyvinyl siloxane, preparing the tooth area to be restored for restoration, forming a second impression with an acrylic like substance comprising alkyl methacrylate, the second impression being formed within the first impression, separating the first impression from the second impression, optically scanning the second impression for creating an image of the restoration, using a computer to generate a graphic representation of the restoration, and using computer controlled milling to create the restoration.
Claim 13
Independent Claim
91 words
A method of making dental restorations comprising the steps of temporarily repairing a tooth area to be restored to a desired shape of a final restoration, taking a first impression of the tooth area to be restored, preparing the tooth area to be restored for restoration, coating the first impression with a separating material, allowing the separating material to dry, forming a second impression within the first impression, separating the first impression from the second impression and optically scanning the second impression to electronically obtain an image of the final restoration.
Claim 14
Independent Claim
91 words
A method of making dental restorations comprising the steps of temporarily repairing a tooth area to be restored to a desired shape of a final restoration, taking a first impression of the tooth area to be restored, preparing the tooth area to be restored for restoration, coating the first impression with a separating material, allowing the separating material to dry, forming a second impression within the first impression, separating the first impression from the second impression and optically scanning the second impression to electronically obtain an image of the final restoration.
Claim 15
Independent Claim
107 words
A method of making a fixed bridge for replacing missing teeth by forming a plaster model of a patient's teeth including missing teeth, using the model for forming the shape of the missing teeth with composite material thereby yielding a temporary restoration, placing the temporary restoration of the missing teeth in the patient's mouth, forming a first impression of the temporary restoration, preparing teeth adjacent to the temporary restoration for final restoration, removing the temporary restoration from the mouth, taking a second impression of the area where the temporary restoration was located including the adjacent teeth to obtain the form for computer reproduction of the fixed bridge.
Claim 16
Independent Claim
107 words
A method of making a fixed bridge for replacing missing teeth by forming a plaster model of a patient's teeth including missing teeth, using the model for forming the shape of the missing teeth with composite material thereby yielding a temporary restoration, placing the temporary restoration of the missing teeth in the patient's mouth, forming a first impression of the temporary restoration, preparing teeth adjacent to the temporary restoration for final restoration, removing the temporary restoration from the mouth, taking a second impression of the area where the temporary restoration was located including the adjacent teeth to obtain the form for computer reproduction of the fixed bridge.
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) | 1998-01-16 | 1998-07-18 | 1999-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-16 | 2002-07-18 | 2003-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-16 | 2006-07-18 | 2007-01-17 | $7700.00 | Window Closed / Lapsed |