Dentsply International Inc.

Other

Dentsply Sirona Inc.

Fuming Sun

Paul Richard Pierson

Robert J Pieroni

Richard James Bennett

Rick Bennet

Huey Shen Wu

Andrew Klein

Robert V Hare

Victoria Laurentia Dimonie

Walter R Dias

Rick Bennett

Markus Carsten Kopp

Jürgen Fiedler

Disclosed herein are a tissue management impression material and a method of application into the sulcus of a patient, whereby the tissue management impression material is a part of the final dental impression made when manufacturing a dental device, such as a crown.

Tissue management impression material and dispensing systems

Tissue management impression material and dispensing system

Dental material dispenser

Methods for making dental crowns, bridges, inlays, onlays, veneers, fillings, and other restorations are provided. The methods involve using a two-phase light curing (TPLC) material. Preferably, the TPLC material used to form the dental restoration comprises a blend of polymerizable compounds; photopolymerization systems (a) and (b), and particulate filler materials (a) and (b). In a first light-curing step, curing light having a wavelength of greater than 420 nm is used to activate system (a). In a second light-curing step, curing light having a wavelength of less than 420 nm is used to activate system (b). The two step light-curing method is efficient and allows the dentist to make restorations having high mechanical strength and pleasing aesthetics.

Methods for making dental restorations using two-phase light-curing materials

Dental article for preparing a dental impression comprising

Dental impression material

The invention provides a method of forming dental restorations, particularly dental crowns. The method involves applying a flexible cement composition to a prepared tooth surface. The composition is polymerized so that it substantially hardens. A composite crown-forming material is dispensed into a substantially transparent plastic matrix. The matrix is placed in the mouth of the patient so that the composite material is molded over the tooth surface. Then, the material is irradiated with curing light, through the matrix, so that it hardens to form a dental crown. The crown has good mechanical strength and is resistant to fracturing and breaking.

Compositions for use as dental crowns and methods for preparing dental crowns

Microspheres are described which have a shell of thermally expandable polymer and a hollow interior that contains a fluorinated hydrocarbon that boils at a temperature below the melting point of the polymer, and contains an organic ester or ether or ketone. The ester or ether or ketone improves the quality of microsphere product. The expandable particles are useful in insulation, packaging, for expanding other polymer such as polytetrafluoroethylene, and the like.

Expandable hollow particles

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Middletown, DE, United States of America

Fuming Sun