Comparative Evaluation of Accuracy of Different Apex Locators: Propex IQ, Raypex 6, Root ZX, and Apex ID with CBCT and Periapical Radiograph—In Vitro Study

Table 2

Mean WL values in mm obtained for each group in comparison with the actual WL (control group) values.

Groups	Mean (mm)	SD (mm)	Minimum (mm)	Maximum (mm)
Actual WL (control group)	14.73	1.22	12.50	18.24
Raypex 6	14.39	1.24	11.65	17.70
Propex IQ	14.65	1.23	12.37	18.20
Root ZX	14.35	1.23	12.00	17.95
Apex ID	14.42	1.26	11.94	17.85
Conventional radiographs	14.01	1.57	10.90	17.48
CBCT radiographs	14.70	1.23	12.50	18.20