Denfotex Ltd.

Davis, Schottlander & Davis Ltd

Gavin John Pearson

Jill A Williams

David John Clements

Michael F Wilson

Helen Mary Anstice

Michael Braden

Mangala Patel

Amy Louise Sherpa

Brain Dennis Schottlander

Ray Todhunter

Wydchaya Kanchanavasita

A method of filling a dental root canal is disclosed herein. The method includes gaining access to the dental root canal and introducing a flowable photosensitizer into the dental root canal. After introducing the flowable photosensitizer into the dental root operation is performed for activating the flowable photosensitizer by exposing the walls of the dental root canal to light via an optical fiber within the dental root canal. Activating the flowable photosensitizer at least partially kills bacteria within the dental root canal and pulp chamber. After activating the flowable photosensitizer, the dental root canal is obturated.

Method and apparatus for filling a dental root canal

A polymerisable dental filling and sealing composition is provided which comprises a mixture of at least one resin containing on average at least two acrylate or methacrylate groups and a copolymerisable methacrylate or acrylate monomer, which has a low viscosity compared with said resin, the copolymerisable monomer being present in an amount such that the composition can be introduced by syringing into a cavity having a diameter of less than 1 mm.

Polymerisable resin compositions for use in dentistry

A polymerisable cement composition, particularly for dental and biomedical uses, comprises a mixture of polymerisable monomer materials including between 5 and 95% by weight tetrahydrofurfuryl methacrylate (THFMA), and at least 5% by weight secondary monomer, preferably a dimethacrylate; and active filler material, preferably powdered fluoroaluminosillicate glass, capable of undergoing an acid-base reaction in the presence of water with acid or acid derivative groups in the composition. The composition is conveniently in the form of a resin-modified glass-ionomer cement or a compomer composition. The use of THFMA as a monomer material has a number of advantages. THFMA has low shrinkage on polymerisation, good biological acceptability and advantageous water uptake properties in comparison to other monomer systems. The invention also covers a method of preparing a polymerisable cement, and a method of dental treatment.

Polymerizable cement compositions

Growing community of inventors

Reading, United Kingdom

Gavin John Pearson