Effect of Calcium Silicate-Based Root Canal Medicament After Retreatment

Sixty patients were randomly divided into two groups using a web-based program according to the selected medicament (calcium silicate-based root canal medicament or calcium hydroxide-based root canal medicament). After the removal of gutta-percha from the root canals, the first samples were collected using paper points to evaluate antibacterial and antifungal effects. The root canals were then chemomechanically prepared, followed by final irrigation activation, and the second samples were collected. The selected root canal medicament was placed in the canals, and the patients were given a form to record their postoperative pain levels over one week. At the second appointment, the medicaments were removed, and third samples were collected using paper points to assess antibacterial and antifungal effects. The root canal treatments of the patients were then completed. The antibacterial and antifungal effects of the medicaments were evaluated using PCR, and the patients' postoperative pain levels were recorded using follow-up forms.