Assessment of Mineral Trioxide Aggregate Setting in Simulated Root Canal with Different Root Canal Wall Thickness: In Vitro Study

Setting of mineral trioxide aggregate (MTA) is affected by various factors. The purpose this in vitro study was to evaluate the influence root canal wall thickness on mechanical properties MTA along whole apical plug. Bovine bone mold tubes with internal diameter 2 mm, height 5 and 0.8 1.2 1.6 mm were filled 3 ProRoot kept 37 °C relative humidity 100% for 7 days. indentation hardness reduced modulus elasticity measured a large overview matrix detailed placed 1.5 from simulated foramen order obtain particularized information about gradient altering properties. uppermost layer material contact had irrespective thickness. most distinct decrease microhardness (32%) (27%) interfacial present specimen thinnest wall. This effect could be observed measurement up 190 µm material. MTA, which during setting thinner than