Dental materials having a nanoscale filler

US6399037B1 · kind B1 · utility

Assignee

• DENTSPLY DETREY GMBH · DE

Inventors

• Kai Pflug · Konstanz, DE
• Christoph Weber · Heidenheim, DE

Key dates

• Filing date: Feb 4, 1999
• Grant date: Jun 4, 2002
• Expiry date: Feb 4, 2019

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/76
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

A low-viscosity dental material contains a non-settling nanoscale filler. Improvements of the mechanical properties of the dental materials, including the abrasive resistance and the compressive strength are provided. Furthermore, the dental materials have increased resistance to microleakage and have increased bond strengths. The filler forms a stable sol with low-viscosity dental materials and the filler may be prepared by surface treatment of fillers having a primary particle size of from about 1 to about 100 nanometers.