Acid Etching, Dental 1 Adhesive removal 1 Adolescent 1 Bracket bonding Color 1 Dental Cements 1 Dental Debonding 1 Dental Polishing 1 Female 1 Humans 1 Male 1 Orthodontic Brackets 1 Orthodontic treatment 1 Prospective Studies 1 Tooth Discoloration 1 Tooth color 1 Young Adult 1 adolescent 1 adverse device effect 1 clinical trial 1 color 1 dental acid etching 1 dental debonding 1 female 1 human 1 male 1 orthodontic bracket 1 prospective study 1 tooth brushing 1 tooth cement 1