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

Table 4

Sensitivity and specificity of CBCT for detection of second canal according to types of the reference standard.

Types of reference standard	Micro-CT	Root sectioning	Staining and clearing
Sensitivity (95% CI)	100% (1.7%–100%)	93.8% (77.3%–98.6%)	66.8% (48%–81.4%)
Specificity (95% CI)	95.6% (85.5%–98.7%)	82.9% (57.6%–94.5%)	95.2% (83.9%–98.7%)

%: percentage; CI: confidence interval; imprecision of the estimate.