Table 1.

Distribution of samples.

Bracket	n	Group	Ligation system	Manufacturer	Reference	Lot
Gemini	25	GN	Conventional	3M / Unitek	119-713	019329500
Generus	25	GE		GAC	31-212-32	B479
Vector	25	VE		Aditek	12.32.411	100329
Smart clip	25	SCs	Self ligating	3M / Unitek	004-302	016560600B
In Ovation R	25	INs		GAC	89-112-00	B3Y7
Easy clip	25	ECs		Aditek	13.32.011	090303