Development of Dental Glass Polyakenoate Cements suitable as Restorative in stress Bearing Areas based on identification of Material Properties

Objective

In the last years, a public debate has arisen on the health hazard of amalgam as a tooth filling. In turn, the demand for substitutes has increased, and new dental composites are being developed. However, during the polymerization process, these materials are shrinking, which may lead to crack growth. The consequence is a bad adhesion to the tooth, so that the filling cannot accomplish its purpose. Up to now, the suitability of new filling materials has to be examined in expensive and extensive clinica1 tests. The aim of this research project is to develop procedures to evaluate the suitability at an earlier stage, so that the immense expenses for clinical tests can be decreased greatly. For this purpose, the material behaviour during the polymerization process has to be modelled, so that simulative studies can be performed. Simultaneously, sophistiicated experimental investigations have to be performed, in order to determine the characteristic material parameters correctly.
In the last years, a public debate has arisen on the health hazard of amalgam as a tooth filling. In turn, the demand for substitutes has increased, and new dental composites are being developed. However, during the polymerization process, these materials are shrinking, which may lead to crack growth. The consequence is a bad adhesion to the tooth, so that the filling cannot accomplish its purpose. Up to now, the suitability of new filling materials has to be examined in expensive and extensive clinica1 tests. The aim of this research project is to develop procedures to evaluate the suitability at an earlier stage, so that the immense expenses for clinical tests can be decreased greatly. For this purpose, the material behaviour during the polymerization process has to be modelled, so that simulative studies can be performed. Simultaneously, sophistiicated experimental investigations have to be performed, in order to determine the characteristic material parameters correctly.

Programme(s)

• FP4-BRITE/EURAM 3 - Specific research and technological development programme in the field of industrial and materials technologies, 1994-1998

Topic(s)

• 0203 - Reliability and quality of materials and products

Funding Scheme

EAW - Exploratory awards

Coordinator

Associated Dental Products Ltd.

Address

Kemdent Works
SN5 9HT Swindon
United Kingdom