Ivoclar Vivadent Ag

Church Dwight & Co., Inc.

Eric Cunningham

John DePiano

David Chesley

Robert A Ganley

Thomas J Hill

Jennifer Johns

A method for producing a dental restoration wherein a tooth preparation area is scanned either directly or indirectly. The scanned data is used by a computer controlled milling machine to create two or more investment blocks () for preparing a suitable dental restoration, the investment blocks being of a material which may be used in ovens operating in a 800&#xb0; to 1,200&#xb0; C. range. A suitable dental restorative material () and the blocks are place in an oven, and after being clamped together, the material () is pressed or injected into the investment blocks to form the desired dental restoration. Subsequently, after cooling, the dental restoration is divested from the investment mold and finished.

Method for producing dental restoration and apparatus therefor

The present invention relates to plural compartment assemblies in which materials are stored in at least two separate compartments until the compartments are opened for use. More particularly, the invention relates to a dispensing tube whereby the utilization of a novel insert, a conventional dispensing tube can be divided into separate and discrete compartments at a low capital cost. The resulting dispensing assembly provides for dispensing more than one material from the same tube and even more particularly co-dispensing predetermined proportions of incompatible materials simultaneously and effectively.

Toothpaste tube

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Malden, MA, United States of America

Eric Cunningham