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Charakterisierung der festen Bestandteile von drei desensibilisierenden Zahnpasten und einer Mundspülung
Author(s) -
Peetsch A.,
Epple M.
Publication year - 2011
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201100744
Subject(s) - anatase , toothpaste , materials science , amorphous solid , nuclear chemistry , scanning electron microscope , dynamic light scattering , nanoparticle , thermogravimetric analysis , chemical engineering , chemistry , nanotechnology , composite material , crystallography , organic chemistry , photocatalysis , engineering , catalysis
The solid components of three toothpastes and a mouth wash which are intended to enhance the remineralization of teeth and occlusion of dentinal tubuli were isolated and analyzed. Samples of the toothpaste BioRepair®, the mouth wash BioRepair®, the toothpaste nanosensitive® hca, and the toothpaste Theramed® S.O.S. Sensitive were characterized by dynamic light scattering (DLS), nanoparticle tracking analysis (NTA), scanning electron microscopy (SEM), energy‐dispersive X‐ray spectroscopy (EDX), X‐ray powder diffraction (XRD), atomic absorption spectroscopy (AAS), thermogravimetric analysis (TG), and elemental analysis. All samples contained primary particles in the size range of 30–60 nm, that were all agglomerated in aqueous dispersion to particles in the size range of 200 to 400 nm. BioRepair® contained a zinc‐substituted hydroxyapatite and amorphous silica, nanosensitive®hca contained TiO 2 (anatase) and an amorphous Na‐Ca‐Si‐P bioglass, and Theramed® S.O.S. Sensitive contained TiO 2 (anatase), amorphous silica and traces of a calcium‐containing phase. The size of the mineral particles was in all cases suitable to fit into dentinal tubuli, especially after breaking up the agglomerated nanoparticles by mechanical forces, e. g. during tooth brushing.