Oberflächeneigenschaften von Zahnrestaurationsmaterialien

The surface free energy describes the physical effects at boundary surfaces. It appears conceivable to optimize the surface free energy of restorative materials and to shift them into a range, where the initial adhesion of bacteria became more difficult. It is expected that materials with a surface energy lower than 38 mJ/m2 or higher than 123 mJ/m2 will accumulate less Plaque. This study describes 18 different restorative materials (amalgam, gold, composite, glass ionomer cement, ormocer and compomer). The influence increasing roughness on the surface free energy and the distribution into dispers and polar portions was determined. Metals exhibited lowest values (gold alloy and amalgam). The surface free energy of gold alloy was below 38 mJ/m2. The surface free energies of composites, compomers, ormocers and glass ionomer cement was between the range of (46-49) mJ/m2. Increasing surface roughness caused a rise of the surface free energy of all materials.

Level thesis:degree_level

thesis.doctoral

Grantor dc:publisher

Ludwig-Maximilians-Universität

Year

2003

Author dc:creator

• Tschernin, Maksim

Contributors dc:contributor

• Kunzelmann, Karl-Heinz

Repository record source_url

https://edoc.ub.uni-muenchen.de/1540/

OAI identifier oai:identifier

oai:edoc.ub.uni-muenchen.de:1540