Patent US4666405A successfully refreshed from Google Patents.
US4666405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for polymerising light-hardening dental fillings of class II type composite material
Assignee: Individual
•
Filing: 1984-02-22
•
Granted: 1987-05-19
•
Expires: 2004-02-22
Abstract
Abstract In a method of preparing a class II dental filling of a light-hardening filling material in a drilled-out tooth surrounded by a matrix band, the drilled-out tooth is filled with a light-hardening filling material in which the lower part of a light-transmitting adapter having a recess and attached to a light conductor, is pushed down into a filling material so that light is spread in the deeper parts of the filling, while at the same time the lower part of the adapter is pressed against the point of contact of the adjacent tooth while the filling is hardened so that satisfactory approximal contact is obtained. A light-transmitting adapter comprises an upper part having a recess for receiving a light conductor and a conical lower part adapted to conduct light-hardening filling material down into a drilled-out tooth. The lower part of the adapter is pressed against a matrix band surrounding the tooth so that satisfactory approximal contact with the adjacent tooth is obtained, while at the same time the deeper parts of the filling are made accessible to light from the light conductor.
Inventors
- 👤 Dan V. Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:40
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/003; A61C19/004
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
69 words
An apparatus for preparing a dental filling of light-hardening filling material, said apparatus comprising a light conductor for illuminated a filling material placed within a tooth, wherein one end of said light conductor is pointed and adapted to be pushed into the filling material such that it engages with a matrix band placed around the tooth and urges said matrix band against the contact point of an adjacent tooth.
Claim 2
Independent Claim
69 words
An apparatus for preparing a dental filling of light-hardening filling material, said apparatus comprising a light conductor for illuminated a filling material placed within a tooth, wherein one end of said light conductor is pointed and adapted to be pushed into the filling material such that it engages with a matrix band placed around the tooth and urges said matrix band against the contact point of an adjacent tooth.
Claim 3
Dependent Claim
46 words
An apparatus as claimed in claim 1, wherein said said one end is a conical adapter for detachable mounting on said light conductor, at least the lower part of said conductor being formed of a light-transmitting material that cannot be bonded chemically to the filling material.
Claim 4
Independent Claim
60 words
A method of preparing a dental filling of light-hardening filling material in a tooth, the drilled-out tooth being filled with a light-hardening filling material, wherein one end of a light conductor having its other end connected to a light source, is pushed into the filling material; and said light source is activated to harden the deeper parts of the filling.
Claim 5
Independent Claim
60 words
A method of preparing a dental filling of light-hardening filling material in a tooth, the drilled-out tooth being filled with a light-hardening filling material, wherein one end of a light conductor having its other end connected to a light source, is pushed into the filling material; and said light source is activated to harden the deeper parts of the filling.
Claim 6
Dependent Claim
47 words
A method as claimed in claim 3, wherein the said one end of the light conductor is pressed against a matrix band surrounding the tooth so that said matrix band in its turn is pressed against the adjacent tooth to provide for satisfactory approximal contact during hardening.
Claim 7
Independent Claim
104 words
A method of preparing a dental filling of light-hardening filling material in a tooth, the drilled-out tooth being filled with a light-hardening filling material, wherein one end of a light conductor having its other end connected to a light source, is pushed into the filling material to transmit and spread light in the deeper parts of the filling and is pressed against a matrix band surrounding the tooth so that said matrix band in its turn is pressed against the adjacent tooth to provide for satisfactory approximal contact during hardening; and said light source is activated to harden the deeper parts of the filling.
Claim 8
Independent Claim
104 words
A method of preparing a dental filling of light-hardening filling material in a tooth, the drilled-out tooth being filled with a light-hardening filling material, wherein one end of a light conductor having its other end connected to a light source, is pushed into the filling material to transmit and spread light in the deeper parts of the filling and is pressed against a matrix band surrounding the tooth so that said matrix band in its turn is pressed against the adjacent tooth to provide for satisfactory approximal contact during hardening; and said light source is activated to harden the deeper parts of the filling.
Claim 9
Independent Claim
133 words
A method of filling a drilled-out cavity in a tooth which is provided with a matrix band, said method comprising: filling the cavity with a light-hardening filling material; pressing into the filling the light-emitting point portion of a pointed light conductor, the other end of which is connected to a light source such that the point portion becomes surrounded by filling material and the point becomes engaged with the matrix band and presses the matrix band against an adjacent tooth and such that simultaneously light being emitted from the point portion is transmitted into the surrounding filling material to harden the deeper portions thereof; withdrawing the point portion from the filling material; filling the resulting hole in the filling material with additional filling material; and illuminating such additional material to harden the same.
Claim 10
Independent Claim
133 words
A method of filling a drilled-out cavity in a tooth which is provided with a matrix band, said method comprising: filling the cavity with a light-hardening filling material; pressing into the filling the light-emitting point portion of a pointed light conductor, the other end of which is connected to a light source such that the point portion becomes surrounded by filling material and the point becomes engaged with the matrix band and presses the matrix band against an adjacent tooth and such that simultaneously light being emitted from the point portion is transmitted into the surrounding filling material to harden the deeper portions thereof; withdrawing the point portion from the filling material; filling the resulting hole in the filling material with additional filling material; and illuminating such additional material to harden the same.
References Cited (Backward Citations)
US3868513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |