CA2559941A1 - Dental composite restorative material and method of restoring a tooth - Google Patents
Dental composite restorative material and method of restoring a tooth Download PDFInfo
- Publication number
- CA2559941A1 CA2559941A1 CA002559941A CA2559941A CA2559941A1 CA 2559941 A1 CA2559941 A1 CA 2559941A1 CA 002559941 A CA002559941 A CA 002559941A CA 2559941 A CA2559941 A CA 2559941A CA 2559941 A1 CA2559941 A1 CA 2559941A1
- Authority
- CA
- Canada
- Prior art keywords
- unit dose
- micrometers
- particle size
- average particle
- release layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract 22
- 238000000034 method Methods 0.000 title claims abstract 4
- 239000011350 dental composite resin Substances 0.000 title abstract 3
- 239000002245 particle Substances 0.000 claims abstract 18
- 239000000945 filler Substances 0.000 claims abstract 9
- 239000011159 matrix material Substances 0.000 claims abstract 3
- -1 polyethylene terephthalate Polymers 0.000 claims 3
- 238000001228 spectrum Methods 0.000 claims 2
- 239000004698 Polyethylene Substances 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- 239000004793 Polystyrene Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 229920000139 polyethylene terephthalate Polymers 0.000 claims 1
- 239000005020 polyethylene terephthalate Substances 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 229920002223 polystyrene Polymers 0.000 claims 1
- 239000011521 glass Substances 0.000 abstract 2
- 208000002925 dental caries Diseases 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
Landscapes
- Packages (AREA)
- Dental Preparations (AREA)
Abstract
A dental composite material includes a hardenable resin matrix and a filler component. The filler component includes (a) a first plurality of preferably glass particles having an average particle size of from about 1 to about micrometers; (b) a second plurality of preferably glass particles having an average particle size of from about 0.1 to about 1 micrometers; and (c) a plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers. A method according to the invention includes compacting a dental composite material into a prepared tooth cavity, wherein the material has a packability index above about 300 g/mm2.
Claims (5)
1. A packaged photosensitive material comprising in combination:
a photosensitive material formed into a unit dose and contained within a container;
said photosensitive material comprising a polymeric matrix and a filler component;
wherein said filler component comprises (a) a first plurality of particles having an average particle size of from about 1 to about 10 micrometers; (b) a second plurality of particles having an average particle size of from about 0.1 to about 1 micrometers; and, (c) a plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers.
a photosensitive material formed into a unit dose and contained within a container;
said photosensitive material comprising a polymeric matrix and a filler component;
wherein said filler component comprises (a) a first plurality of particles having an average particle size of from about 1 to about 10 micrometers; (b) a second plurality of particles having an average particle size of from about 0.1 to about 1 micrometers; and, (c) a plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers.
2. A packaged material as in claim 1, wherein said container is an open top container and has a base and at least one upstanding wall and has an open area therein;
said at least one upstanding wall having a first end proximate to said base and an end proximate to said open top;
said end proximate to said open top being contiguously formed with a laterally extending web;
a release layer removably fixed to said web and enclosing said open area;
said container and said release layer being substantially non-transmissive of at least a portion of the light spectrum to which the materials are photosensitive;
wherein said unit dose of material is contained within said open area.
said at least one upstanding wall having a first end proximate to said base and an end proximate to said open top;
said end proximate to said open top being contiguously formed with a laterally extending web;
a release layer removably fixed to said web and enclosing said open area;
said container and said release layer being substantially non-transmissive of at least a portion of the light spectrum to which the materials are photosensitive;
wherein said unit dose of material is contained within said open area.
3. A packaged material as in claim 1 or 2, wherein said container is fabricated from polystyrene, polyethylene terephthalate, polyethylene, polypropylene and mixtures thereof.
4. A method of working with a unit dose of photosensitive material comprising the steps of:
providing the unit dose of material in a package, wherein said material comprises a polymeric matrix and a filler component;
wherein said filler component comprises (a) a first plurality of particles having an average particle size of from about 1 to about 10 micrometers; (b) a second plurality of particles having an average particle size of from about 0.1 to about 1 micrometers; and, (c) a plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers;
said package having an open top container having a base and at least one upstanding wall and having an open area therein;
said at least one upstanding wall having a first end proximate to said base and an end proximate to said open top;
said end proximate to said open top being contiguously formed with a laterally extending web;
a release layer removably fixed to said web and enclosing said open area;
said container and said release layer being substantially non-transmissive of at least a portion of the light spectrum to which the materials are photosensitive;
removing said release layer from said package;
removing the unit dose of material from said package and placing the unit dose of material onto a support surface;
repeatedly removing a selected portion of the unit dose of material and inverting and placing said package over the unit dose of material;
such that light is prevented from contacting the unit dose of material under said package as said selected portion of the unit dose is employed for its intended purpose.
providing the unit dose of material in a package, wherein said material comprises a polymeric matrix and a filler component;
wherein said filler component comprises (a) a first plurality of particles having an average particle size of from about 1 to about 10 micrometers; (b) a second plurality of particles having an average particle size of from about 0.1 to about 1 micrometers; and, (c) a plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers;
said package having an open top container having a base and at least one upstanding wall and having an open area therein;
said at least one upstanding wall having a first end proximate to said base and an end proximate to said open top;
said end proximate to said open top being contiguously formed with a laterally extending web;
a release layer removably fixed to said web and enclosing said open area;
said container and said release layer being substantially non-transmissive of at least a portion of the light spectrum to which the materials are photosensitive;
removing said release layer from said package;
removing the unit dose of material from said package and placing the unit dose of material onto a support surface;
repeatedly removing a selected portion of the unit dose of material and inverting and placing said package over the unit dose of material;
such that light is prevented from contacting the unit dose of material under said package as said selected portion of the unit dose is employed for its intended purpose.
5. A method as in claim 4, wherein said release layer is placed onto said support surface, and the unit dose of material is placed onto said placed release layer prior to said step of inverting and placing said package over the unit dose of material.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4258597P | 1997-04-02 | 1997-04-02 | |
| US4381297P | 1997-04-14 | 1997-04-14 | |
| US94661297A | 1997-10-07 | 1997-10-07 | |
| US08/946,612 | 1997-10-07 | ||
| US60/042,585 | 1997-10-07 | ||
| US60/043,812 | 1997-10-07 | ||
| CA002285252A CA2285252C (en) | 1997-04-02 | 1998-03-31 | Dental composite restorative material and method of restoring a tooth |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002285252A Division CA2285252C (en) | 1997-04-02 | 1998-03-31 | Dental composite restorative material and method of restoring a tooth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2559941A1 true CA2559941A1 (en) | 1998-10-08 |
| CA2559941C CA2559941C (en) | 2011-08-23 |
Family
ID=37310275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2559941A Expired - Lifetime CA2559941C (en) | 1997-04-02 | 1998-03-31 | Dental composite restorative material and method of restoring a tooth |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2559941C (en) |
-
1998
- 1998-03-31 CA CA2559941A patent/CA2559941C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2559941C (en) | 2011-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20180403 |