Coltene Whaledent, Inc.

Ipco, LLC

Ipco Hospital Supply Corporation (whaledent International Division)

Coltene/whaldent, Inc.

Alan N Miller

Bernard B Weissman

Stanley Edward Mayer

Christian Simmen

Max Schneiderman

John Sullivan

John Campanello

Nathaniel H Lenchner

Edward E Schweizer

The modulus of elasticity and yield strength of a rigid core rod are set within predetermined limits as to limit the elastic deformation and prevent plastic deformation of a dental tray during multiple impression taking, bite registration and subsequent handling. The tray is formed with a frame which provides a positive recovery force when it is flexed. The cross section of the core rod may be optimized to further limit deflection in a predetermined plane. Various preferred materials including nonwoven spun-bonded filaments are selected for supporting impression material on the tray while minimizing the likelihood of obstructing a patient's teeth during full occlusion.

Dental impression tray

Dental post

Combined bottle and cap

Ultrasonic cleaner

An anchoring pin for retention of a dental restoration onto a tooth stub, the pin including an upper retention portion on which a restoration is to be formed, a lower anchoring threaded portion self-threadable in a bore pre-drilled in the tooth stub and a stop collar interconnected between the retention portion and the anchoring portion. A stepped dental drill having two coaxial drill bits of different diameters is provided, which in addition to forming the bore makes a counterbore at the mount of the bore at the exposed excavated surface of the tooth. The counterbore receives the stop collar of the anchoring pin as the latter is driven into the tooth bore thereby preventing bottoming out of the pin so as to avoid concentrated stress at the tip of the pin and also providing distribution of stress as the wider collar abuts the bottom of the counterbore.

Dental anchor and a drill for use therewith

A vibration cancellation device is provided for an air motor with a reciprocating drive piston. The device consists of an anti-phase piston which is axially aligned with the drive piston and reciprocates in the opposite direction of the drive piston. In one embodiment, the stroke of the anti-phase piston is adjustable to permit optimizing its vibration cancellation characteristics.

Reciprocating air motor

Control unit for dental electro surgery

Tray unit for an ultrasonic cleaning machine

Ultrasonic cleaning machine

Dental pin

Bottle

A dental post for retention a dental restoration onto a prepared tooth stub, includes an elongated cylindrical portion insertable into the tooth stub and a head portion extending from the surface of the tooth stub for securement within the dental restoration. The head portion of the post is anatomically shaped to conform to the shape of the dental restoration.

Dental anchor for retention of dental restoration

Growing community of inventors

New City, NY, United States of America

Alan N Miller