Table 1. Baseline sample characteristic.

Study groups	Mean age (P>0.05)		Bleeding on probing		Clinical attachment loss before orthodontic treatment	Active caries before orthodontic treatment	Gender
							Female	Male	P-Value for each study group
	Year-old	P-Value	Score before orthodontic treatment	P-Value
First group (IER)	24.7±6.09	P>0.05	1.82±0.98	P>0.05	0	0	46.7% (14)	53.3% (16)	P>0.05
Second group (Strip+ Fluoride)	26.33±4.86		2.01±0.81		0	0	60% (18)	40% (12)	P>0.05
Third group (Control)	20.93±5.41		1.92±0.51		0	0	60% (18)	40% (12)	P>0.05