Digital Radiography for Determination of Primary Tooth Length: In Vivo and Ex Vivo Studies

Table 3

Percentage of accuracy in the tooth length determination.

	APTL-ACTL
	In vivo		Ex vivo
	Mean variation ≤ 0.5 mm	Mean variation ≤ 1.0 mm	Mean variation ≤ 0.5 mm	Mean variation ≤ 1.0 mm
% equivalence	30	65	65	100
% overestimation	30	10	30	—
% underestimation	40	25	5	—