STEVEN ROLAND JEFFERIES
Dentist in Delaware
License number
Pennsylvania DS036476
Category
Dentistry
Type
Dentist
Address
Address
2
Delaware
Media, PA 19063
Media, PA 19063
Professional information
Methods Of Treatment Of The Dental Pulp And Filling Root Canals Using Water-Based Material
US Patent:
2011010, May 5, 2011
Filed:
Feb 8, 2008
Appl. No.:
12/069359
Inventors:
Carolyn M. Primus - Bradenton FL, US
James L. Gutmann - Dallas TX, US
Miklos M. Breuer - Brookline MA, US
Steven R. Jefferies - Media PA, US
James L. Gutmann - Dallas TX, US
Miklos M. Breuer - Brookline MA, US
Steven R. Jefferies - Media PA, US
International Classification:
A61C 5/02
US Classification:
433224
Abstract:
Improved compositions comprising a mixture of particulate materials with water-based liquids containing water-soluble polymers and surfactants are provided. Examples of particulate powders include mixtures of calcium silicate, calcium aluminate, calcium sulfate, and hydroxyapatite. Examples of water-soluble polymers include polyvinyl alcohols, polyvinyl pyrrolidone, partially hydrolyzed polyvinyl acetates, polyacrylic acid, and polymethacrylic acid. Surfactants such as sodium dodecyl sulfate are added to the composition to interact with the polymeric materials. The compositions are particularly suitable for sealing and obturating dental root canals and root apices. The composition provides a stable barrier to bacterial and fluid leakage in the root canal system of a tooth. In addition, the compositions help promote the growth of new bone and tissue surrounding the root-tip area or dentin tissue that covers an injured or amputated pulp.
Tooth Polishing Compositions And Methods Of Tooth Polishing Without Mechanical Abrasion
US Patent:
2010001, Jan 21, 2010
Filed:
Jul 14, 2009
Appl. No.:
12/502664
Inventors:
Barry Keven Speronello - Belle Mead NJ, US
Frank S. Castellana - Princeton NJ, US
Linda Hratko - Colonia NJ, US
Steven R. Jefferies - Media PA, US
Frank S. Castellana - Princeton NJ, US
Linda Hratko - Colonia NJ, US
Steven R. Jefferies - Media PA, US
Assignee:
BASF Catalysts LLC - Florham Park NJ
International Classification:
A61K 8/20, A61Q 11/00
US Classification:
424661
Abstract:
A method of polishing a tooth surface without mechanical abrasion is provided.
Tooth Polishing Compositions And Methods Of Tooth Polishing Without Mechanical Abrasion
US Patent:
8518382, Aug 27, 2013
Filed:
Jul 14, 2009
Appl. No.:
12/502639
Inventors:
Barry Keven Speronello - Montgomery Township NJ, US
Frank S. Castellana - Princeton NJ, US
Linda Hratko - Colonia NJ, US
Steven R. Jefferies - Media PA, US
Frank S. Castellana - Princeton NJ, US
Linda Hratko - Colonia NJ, US
Steven R. Jefferies - Media PA, US
Assignee:
BASF Corporation - Florham Park NJ
International Classification:
A61K 8/20
US Classification:
424 53, 424 49, 424 52, 433215
Abstract:
A method of polishing a tooth surface without mechanical abrasion is provided. Kits and compositions are also provided.