Estudio analítico de MTA-Angelus® y Biodentine® con técnicas SPME-GCMS y AFMTrabajo ganador del Premio al Mejor Artículo CientíficoUniversidades de la CAM 2016

Resumo

Introduction: The aim of this research was to obtain analytical information about the chemical purity and the homogeneity of the endodontic materials MTA Angelus™ and Biodentine™. Methods: On the one hand, solid phased microextraction-gas chromatography-mass spectrometry (SPME-GCMS) was carried out with MTAAngelus and Biodentine materials, isolating and identifying the contained volatile organic compounds (VOCs). On the other hand, atomic force microscopy (AFM) was used to study topography and roughness aspects on teeth after in vitro root end fillings with both materials. Results: First, several VOCs have been detected by SPME-GCMS in both materials. It is noteworthy alpha methylstirene (identified in MTA Angelus™) or dichloromethane (detected both in MTA Angelus™ and Biodentine™) due to its potential toxicity and harmful health effects. Secondly, AFM study showed differences among the surface materials. Final images and roughness results showed more homogeneous cement in the Biodentine product. Conclusions: Endodontic cements MTAAngelus and Biodentine contains some harmful health compounds. The need of a stricter health risks control of both materials became evident. AFM study demonstrated a more homogenous surface in Biodentine.