a-SiOx Coatings Grown on Dental Materials by PECVD: Compositional Analysis and Preliminary Investigation of Biocompatibility Improvements

Authors

  • Pietro Mandracci,

    Corresponding author
    1. Dipartimento di Scienza dei Materiali e Ingegneria Chimica (Laboratorio Materiali e Microsistemi), Politecnico di Torino Corso Duca degli Abruzzi 24, I-10129, Torino (Italy)
    • Dipartimento di Scienza dei Materiali e Ingegneria Chimica (Laboratorio Materiali e Microsistemi), Politecnico di Torino Corso Duca degli Abruzzi 24, I-10129, Torino (Italy).
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  • Paola Ceruti,

    1. Dipartimento di Scienze Biomediche ed Oncologia Umana, Università di Torino Corso Dogliotti 14, I-10126, Torino (Italy)
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  • Carlo Ricciardi,

    1. Dipartimento di Scienza dei Materiali e Ingegneria Chimica (Laboratorio Materiali e Microsistemi), Politecnico di Torino Corso Duca degli Abruzzi 24, I-10129, Torino (Italy)
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  • Federico Mussano,

    1. Dipartimento di Scienze Biomediche ed Oncologia Umana, Università di Torino Corso Dogliotti 14, I-10126, Torino (Italy)
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  • Stefano Carossa

    1. Dipartimento di Scienze Biomediche ed Oncologia Umana, Università di Torino Corso Dogliotti 14, I-10126, Torino (Italy)
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  • This research was supported by Piedmont Region (“Bando per la ricerca scientifica”, call 2004, grant A166). This article is part of a special section on CVD of Biomaterials.

Abstract

Silicon-oxygen amorphous thin film alloys (a-SiOx) are grown at room temperature by plasma-enhanced (PE)CVD on two dental materials; a ceramic and a microcomposite resin. A compositional analysis of substrates and films is performed by energy dispersive X-ray spectroscopy (EDX), while the sample morphologies are investigated by optical microscopy. Some preliminary investigations on the interaction of substrates and coatings with cells give indications in favor of a-SiOx biocompatibility, and show that the application of coatings based on this material may have a good potential for the reduction of cytotoxicity in dental materials.

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