Effect of chlorhexidine mouthwashes on periodontal parameters and extrinsic tooth staining in orthodontic patients. - Andrucioli MCD; Ferreira Amato PA; Kuchler ÉC; Matsumoto MAN; Bergamo AZN; Silva RABD; Silva LABD; Nelson-Filho P (American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics, 2023)