Effect of Cryotherapy and Laser Application on Post-Operative Pain in Single Visit Endodontically Treated Symptomatic Apical Periodontitis Cases

the root canals are given a final irrigation with 20 mL cold (2.5oC) saline solution for 5 minutes before obturation

ice sticks (wrapped in sterile gauze if needed) using plastic pipette droppers filled with freezed sterile water are placed intraorally in the mouth on the apices of the treated tooth on both buccal and palatal sides for 30 minutes

Canal is irrigated with iced saline for 5 minutes before obturation . Root canal is obturated and coronal restoration is done. Then, application of intraoral cryotherapy is performed by ice sticks for 30 minutes.

laser irradiation on the soft tissues covering the apices of the tooth on both buccal and palatal surfaces respectively

, all occlusal contacts were reduced by 1 mm