Oximetry, Heart Rate, Apnea and Mastication Muscle Activity in Subjects with Sleep Bruxism

2020 • Volume 14 • Issue 1

Olga Patricia López Soto; Lina María López Soto; Yéssica Paola López Echeverry; Cynthia Alejandra Garibay Parra & Betsabe Carmona Rocha



The objective of the study was to describe the average oximetry, heart rate, and apnea events values during sleep, and the activity of masseter and temporal muscles in a group of young adults with SB (Sleep Bruxism). This serial case and observational descriptive study comprised of a sample of 20 young people between 21 and 25 years of age, who were diagnosed with SB through a polysomnography test. Electromyography recordings served to describe the activity conditions of masseter and temporal muscles, while polysomnography was used to obtain measurement values and vital signs. A descriptive statistical analysis accounting for measures of central tendency, absolute and relative frequencies was performed. During mastication, the average masseter and temporal muscle activity values registered at (D: 86) (I: 520), and (D: 340) (I: 510) respectively. While, the average value for hypopnea episodes was (28.9), and (NREM: 93.5) (REM: 93.8) for oximetry. The average heart rate exhibited a value of (NREM: 65.4) (REM: 66.8) beats / minute, while the values for bruxism events registered at (NREM: 135.4) (REM: 120.2) with an index value of (SB events / hour) (40.60). Muscles of mastication characteristics, and vital signs during sleep for subjects with SB can aid in understanding and decision making in treatment.

KEY WORDS: bruxism (MeSH), sleep bruxism (MeSH), chewing (MeSH), polysomnography (MeSH), dental occlusion (MeSH), muscle contraction (MeSH).


How to cite this article

LÓPEZ-S. O. P.; LÓPEZ-S. L. M.; LÓPEZ- E. Y. P.; GARIBAY-P. C. A. & CARMONA, R. B. Oximetry, heart rate, apnea and mastication muscle activity in subjects with sleep bruxism. Int. J. Odontostomat., 14(1):42-47, 2020.


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