Claudia Restrepo1, Frank Lobbezoo2,3, Eduardo Castrillon3,4, Peter Svensson3,4,5, Adriana Santamaria1, Claudia Alvarez6, Ruben Manrique7, Daniele Manfredini8. 1. CES-LPH Research Group, Universidad CES, Medellín, Colombia. 2. Department of Oral Health Sciences, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam, Amsterdam, The Netherlands. 3. Section of Orofacial Pain and Jaw Function, Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark. 4. Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark. 5. Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden. 6. Faculty of Dentistry, Universidad CES, Medellín, Colombia. 7. Knowledgement and innovation office, Universidad CES, Medellín, Colombia. 8. School of Dentistry, Department of Neuroscience, University of Padova, Padova, Italy.
Abstract
BACKGROUND: Polysomnography (PSG) is the gold standard for sleep bruxism (SB) assessment. High economical costs, complex technical equipment, and unfamiliar laboratory setting limit its use in children. AIM: To determine the night-to-night variability of electromyography (EMG) episodes during a five-night recording with the GrindCare Measure (GCM), and the agreement in the assessment of masticatory muscle activity (MMA) between GCM and PSG in children. DESIGN: Forty-seven children from clinics of Universidad CES participated. Each participant was assessed with GCM for five consecutive nights. The last night, children underwent a single-night PSG study, together with the GCM. Spearman correlation coefficients were used to analyze data. RESULTS: The frequency of SB occurrence was 'sometimes' in 12 (25.5%) and 'usually' in 19 (40.4%) children. Simultaneous measurements with GCM and PSG obtained during the fifth night of measurement were not significantly correlated. Correlation between GCM total EMG episodes and EMG episodes/h and PSG total SB episodes, SB episodes/h, total bursts and burst/h measured with PSG was also not significant. CONCLUSION: EMG measurement with GCM was not accurate to detect PSG/SB in children. There was not advantage of multiple assessment for five nights with GCM, reducing the impact of night-to-night EMG episodes' variability on the GCM/PSG correlation.
BACKGROUND: Polysomnography (PSG) is the gold standard for sleep bruxism (SB) assessment. High economical costs, complex technical equipment, and unfamiliar laboratory setting limit its use in children. AIM: To determine the night-to-night variability of electromyography (EMG) episodes during a five-night recording with the GrindCare Measure (GCM), and the agreement in the assessment of masticatory muscle activity (MMA) between GCM and PSG in children. DESIGN: Forty-seven children from clinics of Universidad CES participated. Each participant was assessed with GCM for five consecutive nights. The last night, children underwent a single-night PSG study, together with the GCM. Spearman correlation coefficients were used to analyze data. RESULTS: The frequency of SB occurrence was 'sometimes' in 12 (25.5%) and 'usually' in 19 (40.4%) children. Simultaneous measurements with GCM and PSG obtained during the fifth night of measurement were not significantly correlated. Correlation between GCM total EMG episodes and EMG episodes/h and PSG total SB episodes, SB episodes/h, total bursts and burst/h measured with PSG was also not significant. CONCLUSION: EMG measurement with GCM was not accurate to detect PSG/SB in children. There was not advantage of multiple assessment for five nights with GCM, reducing the impact of night-to-night EMG episodes' variability on the GCM/PSG correlation.
Authors: Tomi Miettinen; Katja Myllymaa; Anu Muraja-Murro; Susanna Westeren-Punnonen; Taina Hukkanen; Juha Töyräs; Reijo Lappalainen; Esa Mervaala; Kirsi Sipilä; Sami Myllymaa Journal: Sleep Breath Date: 2019-08-12 Impact factor: 2.816