Diagnostic Accuracy of CBCT for Detection of Second Canal of Permanent Teeth: A Systematic Review and Meta-Analysis

Table 1

Summary of findings of general characteristics of diagnostic accuracy of CBCT for detection of second canal of the root canal system of permanent teeth.

Question	What is the diagnostic accuracy of CBCT for detection of second canal of permanent teeth?
Population	The permanent teeth which had no root anomalies and no calcification
Index test	CBCT
Target condition	Second canal of root canal system of permanent teeth
Reference standard	Micro-CT (or) root sectioning (or) staining and clearing
Action	If second canal in permanent teeth can be detected prior to endodontic treatment, then general dental practitioners and endodontists can avoid unnecessary endodontic treatment failure, undertake timely referral, and can reduce high cost for the patients
Diagnostic stage	Aimed at general dental practitioners and endodontists or oral radiologists investigating the patients who need to undergo root canal therapy and retreatment or surgical endodontics
Quality of evidence	12 studies supporting data for meta-analysis
	1084 roots involved in meta-analysis
	10 diagnostic cohort studies and two diagnostic case-control studies involved in meta-analysis
	1 study investigated root-filled teeth
	46% pooled prevalence of second canal of all included studies