“…Eleven studies (Abdaljawwad, ; Alkadhi et al., ; Bowen, Rinchuse, Zullo, & DeMaria, ; Cozzani et al., ; Eppright et al., ; Hernández Albújar, ; Iqbal et al., ; Jadhav et al., ; Jejurikar, Nene, Kalia, Gupta, & Mirdehghan, ; Kumar et al., ; Li et al., ; Zotti et al., ) involved adolescents undergoing orthodontic treatment (Table ). Most of the studies that used text messaging combined two behaviour change techniques, that is, “Associations—prompts/cues” and “Natural consequences—information about health consequences” (Abdaljawwad, ; Bowen et al., ; Cozzani et al., ; Eppright et al., ; Hernández Albújar, ; Iqbal et al., ; Jadhav et al., ; Kumar et al., ). Among the three studies that used mobile application intervention, two of them employed different behaviour change techniques, “Comparison of behaviour—social comparison,” “Reward and threat—social reward” and “Comparison of outcomes—credible source” (Li et al., ; Zotti et al., ).…”