Table 1.

Self-ligating, conventional brackets and archwires used in the study.

Self ligating and conventional bracketsa	Archwireb nominal dimensions and alloy
	0.014 NiTi-A cd
Damon MX, SDS Ormco	0.016 NiTi-A cd
Time3, American Orthodontics	0.014 x 0.025 NiTi-A cd
Victory, 3M Unitek with elastic ligatures	0.018 x 0.025 NiTi-A cd
Victory, 3M Unitek with slide ligatures (Leone)	0.017 x 0.025 TMA e
Vision LP, American Orthodontics	0.019 x 0.025 NiTi-A cd
	0.019 x 0.025 Stainless Steel e

^aBracket had nominal slot dimension of 0.022 inch.

^bArchwires obtained directly from the manufacturers.

^cNickel-titanium in the austenitic phase.

^dRMO, Denver, Colorado, USA.

^eDentaurum, Pforzheim, Germany.