Nonsurgical root canal treatment may reduce the prevalence and severity of pain of endodontic origin within 1 day following treatment and substantially to minimal levels in 7 days.
OBJECTIVE
To determine the influence of root canal treatment on pain prevalence and severity and estimate the prevalence and severity of pretreatment, treatment, and posttreatment pain in patients receiving nonsurgical root canal treatment.


BACKGROUND
The University of California, Los Angeles, Section of Endodontics.


METHODS
Systematic review with meta-analysis of data.


METHODS
Level 2: Limited-quality, patient-oriented evidence.


METHODS
Grade B: Inconsistent or limited-quality patient-oriented evidence.
Department of Biological and Diagnostic Sciences, Discipline of Dental Public Health, Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, Canada. amir.azarpazhooh@dentistry.utoronto.ca
Amir
A
Azarpazhooh
Prakesh S
PS
Shah