Other

Bisco Inc.

Roetzer, Patrick L.

Feldman, Michael

Patrick L Roetzer

Byoung I Suh

Michael A Feldman

Rich Nagel

Ron Verner

Michael Feldman

An occlusal cutting and sculpting device for dental applications utilizing a cutting head having a tapered abrasive surface. The cutting head terminates in first and second end portions. A collar overlies and connects to the first end portion of the cutting head and is constructed with a first surface extending outwardly from the cutting head and a curved second surface adjacent the first surface lying apart from the cutting head.

Occlusal sculpting device

A dental bur structure including a rotatable shaft turned by a motor. The shaft possesses a proximal portion having a fluted surface. The bur also possesses a distal portion with a smooth surface tip which generates heat to melt a composite post matrix upon activation of the shaft. The fluted surface removes a composite material while the smooth tip serves as a guide for the bur.

Dental bur

A dental impression dam system utilizing an open tray forming a basin for dental impression material. The basin of the tray includes a gap at an extremity of the same. A flexible band of material bridges the gap of the tray basin and interacts with the dental material to form unit. The band adheres to the external wall portions of the tray when in place.

Dental impression dam system

A dental retractor system used to manipulate positioning of the cheeks and to control saliva flow. The system includes a handle connected to first and second legs that are extended from the handle in a fork or horseshoe configuration. A pair of flaps distend from the legs and are angularly arranged to lie adjacent inner cheeks of the patient with or without interaction with a dry angle.

Dental retractor and fluid control system

A process for the fabrication of indirect dental restoratives includes the making of a first, pre-operative impression of a tooth to be restored using a first polyvinyl silicone (PVS) material disposed in a clear tray, followed by the preparation of the tooth. A second, final post-operative impression of the tooth is taken utilizing a second PVS material. A tooth model is then made by pouring a low viscosity and suitably rigid, third PVS material into the final impression. Prior to the complete setting of the low viscosity PVS material, a higher viscosity, fourth PVS material is applied onto the model PVS material to form a completed model with base. The model is then fitted into the pre-operative impression matrix made from the first PVS material. Layers of composite are packed onto the impression in the clear matrix. The model (with attached base) is then inserted into the composite disposed in the first PVS material and the resulting matrix is placed in a single apparatus for conducting both light and heat cure of the dental composite. The apparatus can utilize a thermister disposed in a composite material, the thermister/composite assembly being disposed in a curing chamber of the apparatus and connected to a control device which controls a heat lamp also disposed in the apparatus. Curing of the dental composite is performed by heating until, for example, the thermister reaches a selected temperature.

System for fabrication of indirect dental restoratives

A self-limiting dental composite restoration sculpting bur particularly adapted for sculpting occlusal resins. Because of the cuspal angle of its cutting surface, the bur will make cuts that closely match the naturally occurring topography of human teeth as well as provide a visual stop that indicates when the desired cutting depth has been reached. The apparatus also includes a diamond coated cutting surface that is of such a roughness that it creates a physical stop that sends a tactile response to the operator when the bur contacts enamel. This tactile response ensures that the operator can avoid overcutting the restoration. In addition, a non-diamond coated annular band can be provided on the cutting head to create a safe zone which serves a further limit stop. The bur is mounted on a straight shaft to allow maximum vertical adjustment when mounted to a standard dental drill. The advantages include a visual depth stop, a physical stop, a shape that matches naturally occurring topography, and using a straight shaft to maximize vertical adjustability.

Growing community of inventors

Benicia, CA, United States of America

Patrick L Roetzer