Dental composite light curing system
AssigneeBisco, Inc.
InventorsByoung I. Suh, Wayne Vinson
Life of this patent
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Abstract
A process for preparing dental restorations includes the steps of applying a composite restorative material onto a prepared tooth followed by the application of light to the composite of intensity sufficient to penetrate the composite to initiate polymerization. Light application is then suspended for a period of time sufficient to allow for the relaxation of internal stresses created by the initial polymerization of the composite. Light is subsequently applied to the composite to complete polymerization. A curing light is utilized which includes variably-adjustable, multiple power and timing settings.
Claims11
A process for curing a dental composite, comprising:
- (a) applying a composite restorative material onto a prepared tooth;
- (b) applying light to the composite of an intensity sufficient to penetrate the composite to initiate polymerization thereof;
- (b) applying light to the composite of an intensity sufficient to penetrate the composite to initiate polymerization thereof;
- (c) suspending light application for a period of time of at least 10 seconds, sufficient to allow for the relaxation of internal stresses created by the initial polymerization of the composite;
- and
- (d) applying light to the composite at a second intensity to complete polymerization.
A process for curing a dental composite, comprising:
- placing at least a first increment of composite restorative material onto a dento-enamel junction;
- applying light of about 600 mW/cm2 for about ten seconds;
- applying a second increment of the composite restorative material to a cavo-surface margin;
- applying light of about 200 mW/cm2 for about three seconds;
- suspending light application for a period of time of at least 10 seconds, sufficient to allow for the relaxation of internal stresses created by the initial polymerization of the composite;
- and
- applying light to the composite at an intensity between about 400 mW/cm2 and about 600 mW/cm2 for a period of time sufficient to complete polymerization.
Dependencies are inferred from the claim text.