title: Effect of intracanal cryotherapy on pain after single-visit root canal treatment.
abstract: The purpose of this study was to evaluate the effect of 2.5°C cold saline irrigation as final irrigant on postoperative pain after single-visit root canal treatment of teeth with vital pulps. One-hundred and seventy patients were assessed as eligible and included to the study. The teeth were randomly divided into two groups (n = 85) (i.e. the control group and the cryotherapy group). In the cryotherapy group, final irrigation with 2.5°C 0.9% physiological saline solution for 5 min was performed following completion of biomechanical preparation, whereas in control group same solution stored at the root temperature was used. Treatments were performed in a single visit. Participants were asked to rate the intensity of their postoperative pain using visual analogue scale at 24 and 48 h. Data were analysed by Mann-Whitney U test and Student's t test. In the cryotherapy group level of reported postoperative pain was significantly lower than the control group (P < 0.05, Mann-Whitney U test). The outcome of this investigation indicates that 2.5°C cold saline irrigation as final irrigant can result a significant reduction in postoperative pain levels in comparison to the control group. Cryotherapy is a simple, cost-effective, and non-toxic option for postoperative pain control in single visit root canal treatment.
authors.affiliation: Department of Endodontics, Ondokuz Mayıs University Faculty of Dentistry, Samsun, Turkey.
authors.forename: Cangül
authors.initials: C
authors.lastname: Keskin
authors.affiliation: Marka Special Dental Health Center, İzmit, Turkey.
authors.forename: Özgür
authors.initials: Ö
authors.lastname: Özdemir
authors.affiliation: Department of Endodontics, Ondokuz Mayıs University Faculty of Dentistry, Samsun, Turkey.
authors.forename: İsmail
authors.initials: İ
authors.lastname: Uzun
authors.affiliation: Samsun Oral Health Clinics, Samsun, Turkey.
authors.forename: Buğra
authors.initials: B
authors.lastname: Güler
mesh_terms: D017679:Cryotherapy; D003786:Dental Pulp Cavity; D006801:Humans; D010147:Pain Measurement; D010149:Postoperative Pain / Q000628:therapy*; D012388:Root Canal Irrigants; D018915:Root Canal Preparation; D012390:Root Canal Therapy / Q000009:adverse effects*
chemical_list: D012388:Root Canal Irrigants
keywords: cryotherapy; postoperative pain; root canal treatment; single visit