Characterization of morphology and composition of inorganic fillers in dental alginates.

Abstract:

:Energy dispersive X-ray spectroscopy microanalysis (EDX), scanning electron microscopy (SEM), and Archimedes' Principle were used to determine the characteristics of inorganic filler particles in five dental alginates, including Cavex ColorChange (C), Hydrogum 5 (H5), Hydrogum (H), Orthoprint (O), and Jeltrate Plus (JP). The different alginate powders (0.5 mg) were fixed on plastic stubs (n = 5) and sputter coated with carbon for EDX analysis, then coated with gold, and observed using SEM. Volume fractions were determined by weighing a sample of each material in water before and after calcining at 450(°)C for 3 h. The alginate materials were mainly composed of silicon (Si) by weight (C-81.59%, H-79.89%, O-78.87%, H5-77.95%, JP-66.88%, wt). The filler fractions in volume (vt) were as follows: H5-84.85%, JP-74.76%, H-70.03%, O-68.31%, and C-56.10%. The tested materials demonstrated important differences in the inorganic elemental composition, filler fraction, and particle morphology.

journal_name

Biomed Res Int

authors

Guiraldo RD,Berger SB,Consani RL,Consani S,de Carvalho RV,Lopes MB,Meneghel LL,da Silva FB,Sinhoreti MA

doi

10.1155/2014/178064

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

178064

eissn

2314-6133

issn

2314-6141

journal_volume

2014

pub_type

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