Dentsply Research & Development Corp.

George T Eden

Louis H Tateosian

Donald I Gonser

Richard James Bennett

John J Blair

Emery W Dougherty

Roy L Smith

John B Heyde

James R Royer

Apparatus and method for providing light curing of prostheses and other medical object materials, the object being prefabricated of a material which is hardened, or polymerized when exposed to visible light. An array of light sources is provided relative to a rotatable platform on which the object is placed, each light source providing a substantially collimated light beam and directed to optimally intercept the rotating object. There are preferably four such light sources, each having a visible light bandpass characteristic and directed at an angle within 25.degree.-45.degree. of the platform surface, the light beams being directed at the platform surface in overlapping fashion so as to provide continuous incident light on the object during each cycle of rotation.

Apparatus and method for light curing medical and prosthetic objects

Apparatus and method for providing light curing of dentures and like materials, the denture being prefabricated of a material which is hardened, or polymerized when exposed to visible light. An array of light sources is provided relative to a rotatable platform on which the denture is placed, each light source providing a substantially collimated light beam and directed to optimally intercept the rotating denture. There are preferably four such light sources, each having a visible light bandpass characteristic and directed at an angle within 25.degree.-45.degree. of the platform surface, the light beams being directed at the platform surface in overlapping fashion so as to provide continuous incident light on the denture during each cycle of rotation.

Denture curing apparatus and method

Novel processes for the restoration of teeth particularly posterior teeth, wherein the use of a matrix band is required, are provided employing one component, packable, actinic light curable, resin-based restorative compositions. Such methods are now capable, for the time, of employing resin-based restoratives in the posterior restoration of teeth wherein the packability of the restorative composition enable the deformation of a matrix to allow substantial restoration of the original conformation of the tooth. Packable one component actinic light curable resin-based restorative compositions are provided.

Methods for posterior dental restoration employing light curable

Dental metallic casting ingot

Endodontic filling systems are provided having improved properties over those known to the prior art. Endodontic points are provided comprising hydrophilic, polymeric compositions. Such points are swellable when placed into a prepared root canal space and provide substantially complete filling of lateral cavity spaces without invasion of the subapicial space. According to a preferred embodiment, such points are used in conjunction with pastes or fluids comprising hydrophilic, polymeric compositions.

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York, PA, United States of America

George T Eden