Effect of fixed orthodontic appliances bonded with different etching techniques on tooth color: a prospective clinical study.

Introduction: For most orthodontic patients, esthetic concerns are as important as functional demands. The purpose of this study was to assess the effect of self-etching primer and conventional acid etching on tooth color after orthodontic treatment.

Methods: A total of 34 patients were enrolled in a clinical trial and divided into 2 groups based on age: adolescents (≤17 years) and adults (>17 years).