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Comparison of ambulatory and polysomnographic recording of jaw muscle activity during sleep in normal subjects.
- Source :
-
Journal of Oral Rehabilitation . Jan2012, Vol. 39 Issue 1, p2-10. 9p. 1 Black and White Photograph, 2 Charts, 5 Graphs. - Publication Year :
- 2012
-
Abstract
- Summary Clinicians and investigators need a simple and reliable recording device to diagnose or monitor sleep bruxism (SB). The aim of this study was to compare recordings made with an ambulatory electromyographic telemetry recorder (TEL-EMG) with those made with standard sleep laboratory polysomnography with synchronised audio-visual recording (PSG-AV). Eight volunteer subjects without current history of tooth grinding spent one night in a sleep laboratory. Simultaneous bilateral masseter EMG recordings were made with a TEL-EMG and standard PSG. All types of oromotor activity and rhythmic masseter muscle activity (RMMA), typical of SB, were independently scored by two individuals. Correlation and intra-class coefficient (ICC) were estimated for scores on each system. The TEL-EMG was highly sensitive to detect RMMA (0·988), but with low positive predictive value (0·231) because of a high rate of oromotor activity detection (e.g. swallowing and scratching). Almost 72% of false-positive oromotor activity scored with the TEL-EMG occurred during the transient wake period of sleep. A non-significant correlation between recording systems was found ( r = 0·49). Because of the high frequency of wake periods during sleep, ICC was low (0·47), and the removal of the influence of wake periods improved the detection reliability of the TEL-EMG (ICC = 0·88). The TEL-EMG is sensitive to detect RMMA in normal subjects. However, it obtained a high rate of false-positive detections because of the presence of frequent oromotor activities and transient wake periods of sleep. New algorithms are needed to improve the validity of TEL-EMG recordings. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0305182X
- Volume :
- 39
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Oral Rehabilitation
- Publication Type :
- Academic Journal
- Accession number :
- 69538815
- Full Text :
- https://doi.org/10.1111/j.1365-2842.2011.02232.x