Effect of Orthodontic Brackets on the Accuracy of Apex Locators: A Pilot Study

Table 1

The mean differences between the values obtained with the electronic apex locator under different test conditions and the actual lengths (mm).

Labial clip-tooth distance	Bracketed teeth ()		Non-bracketed teeth ()
	1 cm		0.014		0.43
2 cm		0.004		0.223
3 cm		1.00		0.581

Italic characters show the statistically significant values (). Minus sign indicates measurements short of the actual length.