title: A note about sample size.
authors: Alessandro
authors: A
authors: Mangano
authors: Cristina
authors: C
authors: Balan
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances / Q000009:adverse effects*; D014087:Tooth Movement Techniques / Q000295:instrumentation*