Dentsply Research & Development Corp.

Russell D Green

Steven R Jefferies

Roy L Smith

The invention relates to a polishing element for use in a system and apparatus and a method for finishing and polishing a dental composite restorative material in a tooth. The system of the invention uses an elastomeric polymer disc which is impregnated with an abrasive for reduction of the composite, and an element for polishing the composite as well as the dental materials. A method of using the above apparatus in a finishing/polishing system is also provided.

Polishing element

The invention relates to a system and apparatus and a method for finishing and polishing a dental composite restorative material in a tooth. The system of the invention uses an elastomeric polymer disc which is impregnated with an abrasive for reducing of the composite, and a felt, suede, or elastomeric polymer foam element for polishing the composite. A method of using the above apparatus in a finishing/polishing system is also provided.

Finishing/polishing system

An ultrasonic endodontic file that is resistant to failure from fracturing and breaking during operation by having an ideal length, which if increased or decreased by more than 1 mm, will result in increased file breakage.

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Millsboro, DE, United States of America

Russell D Green