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The characteristics and properties of calcium phosphates in biomaterial formulations used in dentistry. 1

, : The characteristics and properties of calcium phosphates in biomaterial formulations used in dentistry. 1. Minerva Stomatologica 44(1-2): 3-11

In this work we present the features and the properties of natural and synthetic apatites, which we use in an experimental study of various commercial products composed by calcium phosphate. After having considered the general concepts of biomaterials and biocompatibility, we describe non biological tests used for the characterization of these products. Biomaterials used in this study are: reabsorbable Dac Blu, non reabsorbable Dac Blu, non reabsorbable atomized Dac Blu, non reabsorbable thin Dac Blu, reabsorbable Biocoral 450, Calcitite 2040-12, Orthogel, Apagen, BTF 65, Calcitite 4060-2 Osprogel, Bio-oss, Biostite, Osprovit, Merck Hydroxiapatite. Tests used are: X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric and thermodifferential analysis (TG, DTG, DTA), scanner-ing electron microscopy (SEM) morphological analysis. Last but not least, we underline the particular features of these tests whose interpretation allows a more precise definition of the bioactivity of a biocompatible material.


PMID: 7783709

Other references

Romagni, J.G.; Nanayakkara, D.; Dayan, F.E., 2002: Ecophysiology and mode of action for a selected lichen secondary product. Ecological Society of America Annual Meeting Abstracts 87: 249-250

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Lenzi, H.L.; Pacheco, R.G.; Pelajo Machado, M.; Panasco, M.S.; Romanha, W.S.; Lenzi, J.A., 1998: Immunological system and Schistosoma mansoni Co-evolutionary immunobiology What is the eosinophil role in parasite-host relationship?. Schistosomes, ancestors and recent species, have pervaded many hosts and several phylogenetic levels of immunity, causing an evolutionary pressure to eosinophil lineage expression and response. Schistosoma mansoni adult worms have capitalized on t...

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