Ecological Momentary Assessment of Masseter Muscle Activity in Patients with Bruxism

Diana Elena Vlăduțu, Mihaela Ionescu (), Răzvan Mercuț (), Lorenzo Noveri, Grigore Lăzărescu, Sanda Mihaela Popescu, Monica Scrieciu, Horia Octavian Manolea, Monica Mihaela Iacov Crăițoiu, Alin Gabriel Ionescu and Veronica Mercuț
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Diana Elena Vlăduțu: Department of Prosthetic Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Mihaela Ionescu: Department of Medical Informatics and Biostatistics, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Răzvan Mercuț: Department of Plastic Surgery, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Lorenzo Noveri: Studio Dentistico Noveri-Minelli, 18038 Sanremo, Italy
Grigore Lăzărescu: Department of Prosthetic Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Sanda Mihaela Popescu: Department of Oral Rehabilitation, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Monica Scrieciu: Department of Prosthetic Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Horia Octavian Manolea: Department of Dental Materials, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Monica Mihaela Iacov Crăițoiu: Department of Prosthetic Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Alin Gabriel Ionescu: Department of Medical History, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
Veronica Mercuț: Department of Prosthetic Dentistry, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania

IJERPH, 2022, vol. 20, issue 1, 1-19

Abstract: According to the International Bruxism Consensus, bruxism refers to the activity of the masticatory muscles reflecting contraction disorders, regardless of whether it is during sleep (SB) or an awake (AB) state. The objective of the present study was to evaluate the activity of the masseter muscle by surface electromyographic (sEMG) recordings. This study was performed on 20 participants with self-reported “possible bruxism” (study group) and 20 participants with no self-reported bruxism (control group); all participants underwent an evaluation of the masseter muscle activity using the dia-BRUXO device, which provides numerical parameters regarding sEMG (the total duration and the type of bruxism specific events, the effort made by the masticatory muscles during the recording period, and the personal bruxism index of each participant). Participants from the study group presented more clenching events during AB, three times more frequent than the control group ( p = 0.002, Mann–Whitney U test); for SB, the frequency of clenching and grinding events was comparable within the study group, being more frequent than for the control group; the mean value of the effort index was higher for AB (1.177%) than SB (0.470%) and the same for the duration index, with a mean value of 2.788% for AB and 1.054% for SB. All participants from the control group presented reduced values for all acquired parameters. Overall, the personal bruxism index in AB was approximately four times higher for the study group (2.251%) compared to the control group (0.585%) ( p < 0.005, Mann–Whitney U test). Similar values were obtained for SB. All participants with “possible bruxism” from the study group presented a higher activity of the masseter muscle, which is specific for bruxism, thus being defined as “definite bruxism”.

Keywords: bruxism; muscular contractions; masseter muscle; clenching; grinding; EMG (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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