Correlations between sleep architecture and sleep‐related masseter muscle activity in children with sleep bruxism

Author:

Restrepo Claudia1ORCID,Lobbezoo Frank2,Castrillon Eduardo3,Svensson Peter3,Santamaria Adriana1,Manfredini Daniele4ORCID

Affiliation:

1. Universidad CES Medellín Colombia

2. ACTA, University of Amsterdam Amsterdam Netherlands

3. Aarhus University Aarhus Denmark

4. Università degli Studi di Siena Siena Italy

Abstract

AbstractBackgroundSleep bruxism (SB) occurring during No‐REM (nREM) sleep and increase in microarousals per hour have been described in adults, but not in children.ObjectiveTo assess the correlation between sleep architecture and masseter muscle activity related to sleep bruxism (SB/MMA) in children.Materials and methodsForty‐three children aged 7–12 years (mean age: 9.4 ± 1.3) with confirmed SB underwent a two‐night polysomnographic (PSG) study in a sleep laboratory, for accommodation (first night) and data collection (second night). Data on sleep architecture (total sleep duration (TSD), sleep efficiency (SE), sleep onset latency (SOL), REM and nREM sleep duration and proportion and microarousals/hour during REM and nREM sleep) and episodes/hour of SB/MMA were recorded. Single and multiple‐variable linear regression analyses were performed to assess the correlation between data on sleep architecture (predictors) and SB/MMA (dependent variable).ResultsShorter TSD, REM and nREM stage 1 sleep duration, longer SOL and more microarousals/hour during REM and nREM sleep were found to be positive predictors of SB/MMA in children in the multiple‐variable regression analysis (R2 = 0.511).ConclusionWithin the limitations of this study, it can be concluded that SB/MMA is correlated with altered sleep architecture in children (shorter total sleep duration (TSD), shorter nREM and REM sleep and higher microarousals during REM and nREM sleep). Nevertheless, the clinical significance of these findings need to be demonstrated in future studies.

Publisher

Wiley

Subject

General Dentistry

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