Methods: Six different types of CSC (white Portland cement, white ProRoot MTA, white MTA Angelus, Biodentine, and Endosequence root repair materials both putty and paste) were used in this study. Three samples from each material were analysed in both forms (uncured and cured cements) using EDAX in SEM, XRD and FTIR.
Results: For SEM analysis, the surfaces of all materials consist of particles size range between 194.30 nm to approximately 51.82 µm. The white Portland cement was composed of particles with the largest size and irregular shapes, whereas the particle sizes in other CSC were smaller and more homogeneous particularly in Endosequence root repair materials putty and paste.
Three basic elements were found in both uncured and cured cements of all tested materials using EDAX, namely calcium, silicon and oxygen. The difference was laid in the presence or absence of magnesium, aluminum, bismuth, zirconium and tantalum. XRD showed that all tested materials are composed mainly of tricalcium silicate and dicalcium silicate which are the main compositions of Portland cements. For FTIR analysis, Aromatic ring, Phosphines PH, Alkyl halides and Alcohols O-H groups were found in all tested materials but in different wavenumber.
Conclusions: The different types of CSC tested in this study are basically modified type of Portland cement with the addition of radiopacifier. ProRoot MTA and MTA Angelus contain Bismuth oxide, Biodentine contain zirconium oxide, whereas Endosequence root repair materials putty and paste contain zirconium oxide and tantalum oxide. The different types of radiopacifier may affect the properties of the cements. Thus, further research is needed.