Adolescent 1 Class II malocclusion 1 Double-Blind Method 1 Female 1 Humans 1 Male 1 Malocclusion, Angle Class II 1 Orthodontic Appliance Design 1 Orthodontic Appliances, Fixed 1 Orthodontic Appliances, Functional 1 Pain 1 Pitchfork analysis PowerScope 1 Tooth Movement Techniques 1 Young Adult 1 adolescent 1 adverse device effect 1 comparative study 1 controlled study 1 double blind procedure 1 female 1 functional orthodontic appliance 1 human 1 male 1 malocclusion 1 orthodontic procedure 1 orthodontic tooth movement 1 pain 1 randomized controlled trial 1 young adult 1