Table 1.

Baseline characteristics of the study

	Experimental	Control	Total
Age (years)	20.17±2.47	20.17±2.47	20.17±2.47 (average)
Sex
Female	16	16	16
Male	14	14	14
Preretraction extraction space	5.63±1.39 mm	5.43±1.33 mm	5.53 mm (average)
Incisor irregularity index	2.11 mm	2.11 mm	2.11 mm (average)