Jorge N R Martins, Emmanuel João Nogueira Leal Silva, Duarte Marques, Ricardo Pinto, Helena Francisco, Natasha Ajuz, Mário Rito Pereira, Francisco Manuel Braz Fernandes, Marco Aurélio Versiani
AIM: To compare the design, metallurgy, and mechanical properties of four heat-treated reciprocating instruments coupled with the evaluation of the irrigation flow using an in silico model. METHODOLOGY: New EdgeOne Fire Primary, Easy-File Flex Regular 25, WaveOne Gold Primary and Reciproc Blue R25 instruments (n = 124) were initially evaluated regarding their design through stereomicroscopy, scanning electron microscopy and 3D surface scanning. In addition, energy-dispersive X-ray spectroscopy was utilized to determine their elemental composition, and differential scanning calorimetry tests to evaluate their phase transformation temperatures...
November 2023: International Endodontic Journal