Clin Oral Investig. 2025 Oct 11;29(11):502. doi: 10.1007/s00784-025-06566-0.
ABSTRACT
PURPOSE: This study aimed to clarify the relationship between diurnal awake bruxism (AB) awareness, tooth-contacting habit (TCH) awareness, and the electromyographic (EMG) waveform integral value.
MATERIALS AND METHODS: Unilateral masseteric EMG recordings during the daytime were performed on the habitual masticatory side using an ultraminiature wearable EMG device. One hundred and seven participants (50 and 57 with and without diurnal tooth clenching (d-TC) awareness, respectively) were included. d-TC awareness and TCH awareness were assessed using questionnaires. The standardized burst integral (S-integral) value was calculated for each participant.
RESULTS: There was a statistically significant association between d-TC awareness and TCH awareness. The S-integral values were not significantly associated with the awareness d-TC or TCH. The frequency distribution of EMG waveforms of the awareness and non-awareness groups exhibited wide-range overlaps both for d-TC and TCH.
CONCLUSION: d-TC or TCH awareness showed no clear correlation with the S-integral value, suggesting that it is important to evaluate AB and TCH based on objective and quantitative test results, such as the masseter muscle’s EMG data.
CLINICAL RELEVANCE: Diagnosis, treatment, and management of AB and TCH are important issues in dental medicine. The obtained results regarding the actual state of awareness of AB and TCH, and the EMG integral value that was one of the important EMG indices, were considered useful information for establishing diagnostic and assessment methods for AB and TCH in future clinical dentistry.
PMID:41074973 | DOI:10.1007/s00784-025-06566-0
