Calcium Silicate-Based Cements Associated with Micro- and Nanoparticle Radiopacifiers: Physicochemical Properties and Bioactivity | Zendy

Roberta BossoMartelo | Zendy; Juliane Maria Guerreiro–Tanomaru | Zendy; Raqueli Viapiana | Zendy; Fábio Luis Camargo Vilella Berbert | Zendy; Maria Inês Basso Bernardi | Zendy; Mário TanomaruFilho | Zendy

Open Access

Calcium Silicate-Based Cements Associated with Micro- and Nanoparticle Radiopacifiers: Physicochemical Properties and Bioactivity

Author(s) -

Roberta BossoMartelo,

Juliane Maria Guerreiro–Tanomaru,

Raqueli Viapiana,

Fábio Luis Camargo Vilella Berbert,

Maria Inês Basso Bernardi,

Mário TanomaruFilho

Publication year - 2015

Publication title -

international scholarly research notices

Language(s) - English

Resource type - Journals

ISSN - 2356-7872

DOI - 10.1155/2015/874283

Subject(s) - calcium silicate , scanning electron microscope , materials science , nanoparticle , calcium , chemical engineering , silicate , bismuth , calcium oxide , mineral trioxide aggregate , mineralogy , nuclear chemistry , chemistry , metallurgy , composite material , nanotechnology , dentistry , medicine , engineering

Objective . The aim of this study was to evaluate the physicochemical properties and bioactivity of two formulations of calcium silicate-based cements containing additives (CSCM) or resin (CSCR), associated with radiopacifying agents zirconium oxide (ZrO 2 ) and niobium oxide (Nb 2 O 5 ) as micro- and nanoparticles; calcium tungstate (CaWO 4 ); and bismuth oxide (Bi 2 O 3 ). MTA Angelus was used as control. Methods . Surface features and bioactivity were evaluated by scanning electron microscopy and the chemical composition by energy dispersive X-ray spectrometry (EDS-X). Results . CSCM and CSCR presented larger particle sizes than MTA. Hydroxyapatite deposits were found on the surface of some materials, especially when associated with the radiopacifier with ZrO 2 nanoparticles. All the cements presented calcium, silicon, and aluminum in their composition. Conclusion . Both calcium silicate-based cements presented composition and bioactivity similar to MTA when associated with the radiopacifiers evaluated.

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