Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/197528
Type: Artigo de periódico
Title: Morphological And Chemical Analysis Of Bone Substitutes By Scanning Electron Microscopy And Microanalysis By Spectroscopy Of Dispersion Energy.
Author: da Cruz, Gabriela Alessandra
de Toledo, Sérgio
Sallum, Enilson Antonio
de Lima, Antonio Fernando Martorelli
Abstract: This study evaluated the morphological and chemical composition of the following bone substitutes: cancellous and cortical organic bovine bone with macro and microparticle size ranging from 1.0 to 2.0 mm and 0.25 to 1.0 mm, respectively; inorganic bovine bone with particle size ranging from 0.25 to 1.0 mm; hydroxyapatite with particle size ranging from 0.75 to 1.0 mm; and demineralized freeze-dried bone allograft with particle size ranging from 0.25 to 0.5 mm. The samples were sputter-coated with gold in an ion coater, the morphology was observed and particle size was measured under vacuum by scanning electron microscopy (SEM). The chemical composition was evaluated by spectroscopy of dispersion energy (EDS) microanalysis using samples without coating. SEM analysis provided visual evidence that all examined materials have irregular shape and particle sizes larger than those informed by the manufacturer. EDS microanalysis detected the presence of sodium, calcium and phosphorus that are usual elements of the bone tissue. However, mineral elements were detected in all analyzed particles of organic bovine bone except for macro cancellous organic bovine bone. These results suggest that the examined organic bovine bone cannot be considered as a pure organic material.
Subject: Animals
Biocompatible Materials
Bone Substitutes
Bone And Bones
Calcium
Cattle
Cryopreservation
Decalcification Technique
Durapatite
Electron Probe Microanalysis
Freeze Drying
Humans
Microscopy, Electron, Scanning
Minerals
Particle Size
Phosphorus
Porosity
Sodium
Transplantation, Homologous
Rights: fechado
Identifier DOI: 
Address: http://www.ncbi.nlm.nih.gov/pubmed/17982552
Date Issue: 2007
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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