Correlation Between Sleep-Time Masseter Muscle Activity and Tooth Wear: An Electromyographic Study.

Aims: To assess the correlation between tooth wear and sleep-time masseter muscle activity (sMMA) in a group of healthy young adults who underwent home electromyographic/electrocardiographic (EMG/ECG) recordings with a portable device.

Methods: A total of 41 healthy volunteers (23 women, 18 men; mean age 28.8 years, range 25 to 40) with good natural dentition underwent a 2-night in-home evaluation with a portable device that allowed a simultaneous sleep-time recording of EMG signals from both masseter muscles and heart rate.

Assessment of Anxiety and Coping Features in Bruxers: A Portable Electromyographic and Electrocardiographic Study.

Aims: To determine whether there is a correlation between any psychological features and sleep bruxism (SB).

Methods: A total of 36 healthy volunteers underwent an in-home evaluation with a portable device combining electromyographic (EMG) and electrocardiographic (ECG) recordings for the diagnosis of SB. They were administered questionnaires that assessed state and trait anxiety levels and coping strategies.