Cryotherapy and pain intensity during endodontic treatment of mandibular first permanent molars with symptomatic irreversible pulpitis: A randomized controlled trial

The study aimed to assess the effectiveness of cryotherapy application after inferior alveolar nerve block (IANB) administration of the mandibular first permanent molars with symptomatic irreversible pulpitis (SIP) in adolescence. The secondary outcome was to compare the need for supplemental intraligamentary injection (ILI). The study was designed as a randomized clinical trial including 152 participants aged from 10 to 17 years who were randomly assigned to two equal groups; cryotherapy plus IANB (intervention group) and the control group (conventional INAB). Both groups received 3.6 mL of 4