[Mandibular movements during sleep]

Measurement methods using digital evaluation are suitable for determining spacing. Important parameters, such as distribution of spacing during the night, frequency and duration of grinding movements, mean and most frequent spacing, were calculated. We also used the same method to measure pressure exerted on the headgear and the activator as well as to evaluate the interocclusal spacing in subjects wearing orthodontic apparatuses. Additional studies are planned in regard to teeth grinding, individuals with unusual habits, distinctive sleeping positions, and obstructed occlusion.