Affiliation:
1. Aristotele University of Thessaloniki
2. Aristotle University of Thessaloniki
Abstract
Dental ceramic-bioactive glass composites support the attachment and proliferation of
human periodontal ligament cells, while their immersion in a simulated body fluid (SBF) results in
the precipitation of biological hydroxyapatite further supporting cell proliferation [1]. The aim of
the present study was the comparative evaluation of three dental ceramic-bioactive glass
composites’ crystal structure relative to bioactive glass amount and the evaluation of their
bioactivity. All composites consisted of leucite and Na2CaSi3O9 crystals dispersed in amorphous
glassy matrix. Leucite and Na2CaSi3O9 crystals decreased significantly in all composites with the
highest amount of dental ceramic, which did not precipitated apatite during the examined
immersion time in SBF. An increase of Na2CaSi3O9 crystals in the composites with the highest
amount of bioactive glass resulted in faster apatite formation. Increased bioactivity was linearly
correlated to increased amount of bioactive glass.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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