Surface Free Energy Changes of Human Enamel during Pellicle Formation
- 1 January 1984
- journal article
- basic science
- Published by S. Karger AG in Caries Research
- Vol. 18 (5) , 408-415
- https://doi.org/10.1159/000260795
Abstract
The surface free energy and its polar- and dispersion components pertaining to pellicle-covered human enamel, sintered hydroxyapatite, Diacryl® and fluorethy-lenepropylene were determined from contact angle measurements. During the first 5 min of pellicle formation, the total surface free energy of human enamel increased from 84 to 110 erg·cm––2. After these first 5 min the surface free energy of pellicle covered solids remained constant for at least 2 h. Pellicle formation on apolar solids like fluorethylenepropylene increased the surface free energy only slightly.Keywords
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