OBJECTIVE This study compared the chemical constitution, radiopacity, and biocompatibility of Portland cement containing bismuth oxide (experimental cement) with those of Portland cement and mineral trioxide aggregate (MTA). STUDY DESIGN The chemical constitution of materials was determined by scanning electron microscopy and energy-dispersive X-ray analysis. The radiopacity of the materials ...

Tricalcium-silicate and Tetracalcium-phosphate were prepared from ultra-pure chemical compounds via solid-state reaction at 1450 o C and 1500 o C respectively in an attempt to formulate a root end filling cement. Materials were investigated by X-ray diffraction and Transmission-electron microscope. The formulated cement comprises 60 wt% Tricalcium-silicate, 20 wt% Tetracalcium-phosphate and 20 ...

Objectives: This study aimed to compare the physical properties and antibacterial effectiveness of iodoform based root filling pastes, Vitapex® Metapex®, with sodium iodide paste (NaI paste) for primary teeth. Materials Methods: The (flowability, film thickness, radiopacity) pastes were evaluated according ISO 6876:2012. activity against Enterococcus faecalis strain (ATCC 6538) was using a dire...

Effect of the storage in water on the radiopacity of calcium hydroxide cements Karina Lopes Devito1 Ana Isabel Ortega2 Francisco Haiter-Neto3 1PhD, Professor, Department of Radiology, Juiz de Fora Dental School, UFJF, Juiz de Fora, Brazil. 2MSc, PhD, Piracicaba Dental School, UNICAMP, Piracicaba, Brazil. 3MSc, PhD, Professor, Department of Radiology, Piracicaba Dental School, UNICAMP, Piracicab...

Physicochemical properties of pozzolan Portland cement were compared to ProRoot MTA and MTA BIO. To test the pH, the samples were immersed in distilled water for different periods of time. After the pH analysis, the sample was retained in the plastic recipient, and the electrical conductivity of the solution was measured. The solubility and radiopacity properties were evaluated according to spe...