IRCT2014032117067N1 IRCT 2014-09-03 Tehran University of Medical Sciences Evaluation the effect of two mouthwashes on surface characterization of orthodontic wire and bracket and friction between bracket and wire - A clinical trial for comparison the effect of two mouthwashes, Persica and Chlorhexidine, on surface characterization and static friction between wire and bracket in orthodontic patients. 2014-12-31 anticipated 60 Complete https://irct.ir/trial/15806 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Other design features: In order to randomized assignment of samples, three folded paper cards were used. 2-3 Surface characterizations of orthodontic wire and bracket and static friction between wire and bracket in dry state. Intervention 1: Intervention name: Chlorhexidine gluconate 0.2% Administration: The mouth is rinsed with 30 ml (2 Tablespoons) of undiluted chlorhexidine twice daily (morning and night) for 30 seconds after brushing for two weeks. Individuals must expectorate the chlorhexidine after rinsing and must not rinse their mouths with water or mouthwashes, brush their teeth, or eat immediately after using chlorhexidine. Patients should clean their teeth with Oral-B tooth brush and Crest, Gum Protection tooth paste. Intervention 2: Intervention name: Persica Administration: The mouth is rinsed with 30 ml (2 Tablespoons) of diluted Persica (15 mlit Persica and 15 mlit water), twice daily (morning and night) for 30 seconds after brushing for two weeks. Patients should clean their teeth with Oral-B tooth brush and Crest, Gum Protection tooth paste. Intervention 3: Control: Active control Patients should clean their teeth with Oral-B tooth brush and Crest, Gum Protection tooth paste.