Abstract
After the coronal access and root canal preparation with 2.5% sodium hypochlorite and ProTaper System, until the F2 instrument, the canals will be filled with AH Plus cement and gutta-percha by single cone technique. In sequence, after cleaning the pulp chamber with ethanol, the teeth will be divided into six experimental groups (n = 10). In G1 (control), the crowns will be immediately re…