Decreasing the depth of etch for direct bonding in orthodontics.
D000134:Acid Etching, Dental / Q000379:methods*; D001840:Dental Bonding / Q000379:methods*; D003743:Dental Enamel / Q000033:anatomy & histology*; D006801:Humans; D009967:Orthodontic Appliances; D013718:Tensile Strength; D013997:Time Factors