Clinical Condition and Sleep Quality Factors Associated With Sleep Bruxism in Adults: a Study Using Polysomnography.
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Sleep Bruxism, Adult
- Sponsor
- Federal University of Pelotas
- Enrollment
- 240
- Locations
- 1
- Primary Endpoint
- Patients with Sleep Bruxism by Polysomnography exams
- Status
- Completed
- Last Updated
- 6 years ago
Overview
Brief Summary
This cross-sectional study will evaluate the association between sociodemographic, occupational, clinical conditions, psychological (sense of coherence), sleep quality variables and SB diagnosed by PSG, the gold standard exam with audio-visual resources obtained at Pelotas Sleep Institute.
Detailed Description
Sleep bruxism is defined as a masticatory muscle activity during sleep that is characterised as rhythmic (phasic) or non-rhythmic (tonic) and should be considered a risk factor rather than a disorder in otherwise healthy individuals. The diagnosis of sleep bruxism often is challenging and despite the use of questionnaires, clinical exams and portable devices, based on current knowledge, the polysomnography with audio-video recordings emerges as the gold-standard criteria for a definite sleep bruxism diagnosis. Included on the questionnaire there is a registration form, which contains: included: age at time of data collection , gender, marital status , and education level ; Occupational: individuals were asked about work outside home, and working hours; Clinical condition: body mass index, smoking; alcohol consumption; use of sleeping pills; respiratory allergy and Psychological: sense of coherence .
Investigators
Noéli Boscato, PhD
Associate Professor
Federal University of Pelotas
Eligibility Criteria
Inclusion Criteria
- •All adults (aged 20 to 60 years) and elderly (aged \>60 years)
Exclusion Criteria
- •Inadequate cognitive capacity to understand and answer the questionnaires;
- •Degraded PSG image quality;
- •Questionnaires filled incorrectly;
- •Participants who presented a history of epilepsy that could interfere in the results of polysomnography.
Outcomes
Primary Outcomes
Patients with Sleep Bruxism by Polysomnography exams
Time Frame: 4 months
The data were obtained from polysomnography records in which masseter electromyography (EMG) burst was detected based on a predefined EMG threshold (20% of maximal voluntary tooth clenching task). Right masseter EMG bursts exceeding 0.25 second in duration were selected for oromotor activity scoring according to published criteria. Oromotor episodes separated by 3-second intervals were recognized as rhythmic masticatory muscle activity (RMMA) if they corresponded to 1 of the 3 following patterns: phasic (3 or more EMG bursts, each lasting 0.25 to 2 seconds), tonic (1 EMG burst lasting more than 2 seconds), or mixed (both burst types) episodes. EMG bursts were considered within the same RMMA episode if the interval between them was shorter than 2 seconds. Participants had SB diagnosed by polysomnography (PSG) if the RMMA index was greater than 2 episodes per hour of sleep.