Introduction:
Anticipation and experience of root canal associated pain is a major source of fear for patients and a very important concern of dentists. Pretreatment, treatment, and posttreatment pain is anticipated, expe- rienced, remembered, and shared by patients. The purpose was 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 root canal treatment.
Methods:
Defined searching of MEDLINE, Embase, Cochrane, and PsycINFO databases identified 5,517 articles. Systematic review, including title scan- ning, abstract scanning, full-text review, and quality rating, provided 72 studies for meta-analysis. L’Abbe plots were used to evaluate the influence of root canal treatment on pain prevalence and severity. Pretreat- ment, treatment, and posttreatment pain prevalence and severity data were analyzed.
Results:
L’Abbe plots revealed that pain prevalence and severity decreased substantially after treatment. Mean pretreatment, 24- hour posttreatment, and 1-week posttreatment pain prevalences with associated standard deviations were 81 (28%), 40 (24%), and 11 (14%), respectively. Pretreatment, 24-hour posttreatment, and 1-week post- treatment pain severities, on a 100-point scale, were 54 (24%), 24 (12%), and 5 (5%), respectively. Supple- mental injections were frequently required (60 [24%]).
Conclusions:
Pretreatment root canal–associated pain prevalence was high but dropped moderately within 1 day and substantially to minimal levels in 7 days. Pretreatment root canal–associated pain severity was moderate, dropped substantially within 1 day of treat- ment, and continued to drop to minimal levels in 7 days. Supplemental anesthesia was often required.
(J Endod 2011;37:429–438)
Key Words
Endodontic, L’Abbe plot, meta-analysis, pain, preva- lence, root canal, severity
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