Study protocol of a randomized controlled trial to test the effect of a smartphone application on oral-health behavior and oral hygiene in adolescents with fixed orthodontic appliances

本研究方案是一项随机对照试验，旨在检验一款智能手机应用程序对佩戴固定矫治器的青少年口腔健康行为和口腔卫生的影响。