Effect of orthodontic appliances on masticatory muscle activity

There is limited and conflicting evidence regarding the impact of orthodontic appliances on masticatory muscle activity (MMA), jaw function, and oral parafunctional behaviours. Investigations in this field frequently utilise surface electromyography (sEMG) to analyse changes in muscle contractile activity. Fixed orthodontics appliances have been associated with significant reductions in MMA post archwire activation. Conversely, elevations in masseter and digastric muscle activity have been reported in response to removable functional appliances.

Source: Seminars in Orthodontics - January 5, 2024 Category: Dentistry Authors: Nicholas Pittar, Alessia Sicignano, Giulia Bardini, Mauro Farella Source Type: research