US5718585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic teeth and mold making therefor
Assignee: Dentsply Research and Development Corp
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Filing: 1995-09-15
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Granted: 1998-02-17
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Expires: 2015-09-15
Abstract
Abstract A prosthetic tooth having an enamel layer which has a zone of substantially constant thickness. This tooth is molded using a dental tooth mold part prepared by imaging a dental pattern of a prosthetic tooth shade layer and/or shader mold part outer surface, and forming the dental pattern in a mold by program directed milling. A family of prosthetic teeth is provided including a first tooth in a first set of teeth having a first overall labial length, and a first back length, and a second tooth in a second set of teeth having a second overall labial length, and a second back length. The invention provides a prosthetic incisor tooth including a tooth body having two generally symmetrical curved grooves between three curved ridges on the labial face of the body at the incisal end of the body. The grooves are deepest at the incisal end and extend substantially from the incisal edge to at least about 15 percent of the overall tooth length.
Inventors
- 👤 Barry Dehoff
- 👤 Jeffrey McGraw
- 👤 James McNulty
- 👤 Vickie Reynolds
- 👤 Roger Shue
- 👤 Mark White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:05
CPC Classifications
A; A61; A61C; A61C13/00; A61C13/08; A61C13/081; A61C13/0003; A61C13/0004; A61C5/00; A61C5/70; A61C5/73; A61C5/77
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
59 words
A family of prosthetic teeth comprising a first tooth in a first set of teeth having a first ratio of the shade layer length (S) to back length (B) and a second tooth in a second set of teeth having a second ratio of the shade layer length to back length, said first and second ratios being substantially equal.
Claim 2
Dependent Claim
59 words
A family of prosthetic teeth comprising a first tooth in a first set of teeth having a first ratio of the shade layer length (S) to back length (B) and a second tooth in a second set of teeth having a second ratio of the shade layer length to back length, said first and second ratios being substantially equal.
Claim 3
Dependent Claim
31 words
The family of claim 1 wherein said end of first and second tooth is an incisor and said first ratio is within 5 percent of being equal to said second ratio.
Claim 4
Dependent Claim
85 words
A family of prosthetic teeth, comprising: a first tooth in a first set of teeth, said first tooth having a first overall labial length (L), and a first back length (B), and a second tooth in a second set of teeth, said second tooth having a second overall labial length, and a second back length, the ratio of the first overall labial length to the second overall labial length being substantially equal to the ratio of the first back length to the second back length.
Claim 5
Dependent Claim
85 words
A family of prosthetic teeth, comprising: a first tooth in a first set of teeth, said first tooth having a first overall labial length (L), and a first back length (B), and a second tooth in a second set of teeth, said second tooth having a second overall labial length, and a second back length, the ratio of the first overall labial length to the second overall labial length being substantially equal to the ratio of the first back length to the second back length.
Claim 6
Dependent Claim
56 words
The family of prosthetic teeth of claim 3 wherein said first tooth has a first shader length and said second tooth has a second length and the ratio of said first shader length to said first overall labial length is substantially equal to the ratio of said second shader length to said second overall labial length.
Claim 7
Dependent Claim
14 words
The family of teeth of claim 4 wherein each said tooth is a molar.
Claim 8
Dependent Claim
14 words
The family of teeth of claim 4 wherein each said tooth is an incisor.
Claim 9
Dependent Claim
14 words
The family of teeth of claim 4 wherein each said tooth is a canine.
Claim 10
Dependent Claim
24 words
The family of teeth of claim 4 wherein said first shader length is substantially equal to 68 percent of said first overall labial length.
Claim 11
Dependent Claim
42 words
The family of teeth of claim 3 wherein the ratio of the first overall labial length to the second overall labial length is within 5 percent of being equal to the ratio of the first back length to the second back length.
Claim 12
Dependent Claim
14 words
The family of teeth of claim 3 wherein each said tooth is an incisor.
Claim 13
Dependent Claim
14 words
The family of teeth of claim 3 wherein each said tooth is a canine.
Claim 14
Dependent Claim
24 words
The family of teeth of claim 3 wherein said first back length is substantially equal to 94 percent of said first overall labial length.
Claim 15
Dependent Claim
22 words
The family of teeth of claim 12 wherein said shader length is substantially equal to 68 percent of said overall labial length.
Claim 16
Dependent Claim
91 words
A family of prosthetic teeth, comprising: a first tooth in a first set of teeth, said first tooth having a first enamel layer, a first shade layer length, and a first back length, and a second tooth in a second set of teeth, said second tooth having a second enamel layer, a second shade layer length, and a second back length, the ratio of the first shade layer length to the second shade layer length being substantially equal to the ratio of the first back length to the second back length.
Claim 17
Dependent Claim
91 words
A family of prosthetic teeth, comprising: a first tooth in a first set of teeth, said first tooth having a first enamel layer, a first shade layer length, and a first back length, and a second tooth in a second set of teeth, said second tooth having a second enamel layer, a second shade layer length, and a second back length, the ratio of the first shade layer length to the second shade layer length being substantially equal to the ratio of the first back length to the second back length.
Claim 18
Dependent Claim
61 words
The set of prosthetic teeth of claim 14 wherein said first tooth has a first overall labial length and said second tooth has a second overall labial length and the ratio of said first shade layer length to said first overall labial length is substantially equal to the ratio of said second shade layer length to said second overall labial length.
Claim 19
Dependent Claim
14 words
The set of teeth of claim 15 wherein each said tooth is a molar.
Claim 20
Dependent Claim
14 words
The set of teeth of claim 15 wherein each said tooth is an incisor.
Claim 21
Dependent Claim
14 words
The set of teeth of claim 15 wherein each said tooth is a canine.
Claim 22
Dependent Claim
24 words
The set of teeth of claim 15 wherein said first shader length is substantially equal to 68 percent of said first overall labial length.
Claim 23
Dependent Claim
42 words
The set of teeth of claim 14 wherein the ratio of the first shade layer length to the second shade layer length is within 5 percent of being equal to the ratio of the first back length to the second back length.
Claim 24
Dependent Claim
14 words
The set of teeth of claim 14 wherein each said tooth is an incisor.
Claim 25
Dependent Claim
14 words
The set of teeth of claim 14 wherein each said tooth is a canine.
Claim 26
Dependent Claim
24 words
The set of teeth of claim 14 wherein said first back length is substantially equal to 94 percent of said first overall labial length.
Claim 27
Dependent Claim
22 words
The set of teeth of claim 23 wherein said shader length is substantially equal to 68 percent of said overall labial length.
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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) | 2001-02-16 | 2001-08-18 | 2002-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-02-16 | 2005-08-18 | 2006-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-02-16 | 2009-08-18 | 2010-02-17 | $7700.00 | Window Closed / Lapsed |