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US 2013/0210959 A1Published application
Dental compositions comprising semi-crystalline resin and nanocluster filler
Assignee3M Innovative Properties Company
InventorsJie Yang, Naimul Karim, Todd D. Jones, Dwight W. Jacobs
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Abstract
Curable dental compositions, dental articles, and methods of making or using such compositions or articles are described. In one embodiment, the curable dental restoration composition comprises a resin system comprising a free-radically polymerizable semi-crystalline resin having a molecular weight no greater than 2000 g/mole and at least 50 wt-% of nanocluster filler.
Claims17
A preformed semi-finished dental article comprising an uncured dental restoration composition comprising:
- a resin system comprising a free-radically polymerizable semi-crystalline resin having a molecular weight no greater than 3000 g/mole;
- and
- at least 50 wt-% of nanocluster filler;
- wherein the uncured dental restoration composition has a first shape that is sufficiently malleable to be formed into a second shape.
1 more element
A method of making a dental article comprising:
- providing a preformed semi-finished uncured dental article having a first shape wherein the uncured dental article comprises:
- a resin system comprising a free-radically polymerizable semi-crystalline resin having a molecular weight no greater than 3000 g/mole;
- at least 50 wt-% of nanocluster filler;
- forming the semi-finished uncured dental article into a second shape;
- and
- hardening the semi-finished uncured dental article by curing.
3 more elements
A curable dental restoration composition comprising:
- a resin system comprising a free-radically polymerizable semi-crystalline resin having a molecular weight no greater than 3000 g/mole;
- and
- at least 50 wt-% of nanocluster filler.
Dependencies are inferred from the claim text.