Comparative Evaluation of Microtissue-Engineered Root Dentin with Three Different Nanoparticles in Improving Fatigue Resistance of Endodontically Treated Teeth – An In Vitro Study

Root dentin engineered with HaNPs showed a fatigue resistance of 36.81 ± 4.58 MPa and surface roughness of 4.2 ± 0.5 MPa, attributed to the availability of calcium ions at 9%, the highest compared to other groups. Non-microtissue-engineered root dentin exhibited a fatigue resistance of 12.3 ± 3.1 MPa, while microtissue-engineered root dentin showed 36.81 ± 4.58 MPa, which is three times higher.