Patent US4718849A successfully refreshed from Google Patents.
US4718849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-like dental die
Assignee: Individual
•
Filing: 1986-03-06
•
Granted: 1988-01-12
•
Expires: 2006-03-06
Abstract
Abstract The sheet-like dental die, with the anatomical characteristics of the profile of a certain type of tooth, made of a material permeable to light and to UV rays and which does not bind to hardenable filling synthetic materials by radiation, is deposited according to the configuration and utilization about the tooth to be filled from the tongue or vestibule side and the two even lobes (1) are pressed against each other on the opposite side by means of a dentist pincer while the filling is irradiated to allow its polymerization or at least its introduction.
Inventors
- 👤 Hans von Weissenfluh
- 👤 Giacomo Richner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:02
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/80; A61C5/85; A61C19/00; A61C19/003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
Sheet-like dental die made from light- and UV-transparent material not adhering to radiation-curing single-component synthetics for the external shaping of fillings in the whole coronal region of teeth, comprising: an essentially preshaped U-shaped foil having a middle portion (2) shaped to the typical anatomical features of substantially the entire tooth to be filled, and having two flat fins (1), one at each side of and connected to said middle portion (2), said fins (1) adapted to be grasped and squeezed to tighten said foil by means of a suitable instrument.
Claim 2
Dependent Claim
90 words
Sheet-like dental die made from light- and UV-transparent material not adhering to radiation-curing single-component synthetics for the external shaping of fillings in the whole coronal region of teeth, comprising: an essentially preshaped U-shaped foil having a middle portion (2) shaped to the typical anatomical features of substantially the entire tooth to be filled, and having two flat fins (1), one at each side of and connected to said middle portion (2), said fins (1) adapted to be grasped and squeezed to tighten said foil by means of a suitable instrument.
Claim 3
Dependent Claim
40 words
Sheet-like dental die according to claim 1 characterized in that in region of the transition from the middle portion (2) to the two flat fins (1) it has two indentations (3) to take care of the shape of the gums.
Claim 4
Dependent Claim
27 words
Sheet-like dental die according to claims 1 or 2 characterized by a reduced thickness of the material in the region of the lateral flanks of the tooth.
Claim 5
Dependent Claim
27 words
Sheet-like dental die according to claims 1 or 2 characterized by having the anatomical features of the tooth to be filled, in the lingual and proximal region.
Claim 6
Dependent Claim
27 words
Sheet-like dental die according to claims 1 or 2 characterized by having the anatomical features of the tooth to be filled, in the vestibular and proximal region.
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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |