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Sleep Architecture and Factors Associated With Definitive Diagnosis of Sleep Bruxism

Només els usuaris registrats poden traduir articles
Inicieu sessió / registreu-vos
L'enllaç es desa al porta-retalls
EstatCompletat
Patrocinadors
Federal University of Pelotas

Paraules clau

Resum

This case-control study will evaluates the association between the definitive sleep bruxism diagnosis by gold-standard polysomnography examination obtained at Pelotas Sleep Institute and the sociodemographic, occupational, clinical conditions, sleep quality, sleep structure and Epworth sleepiness scale variables.

Descripció

Currently, as sleep and awake bruxism are generally considered as different behaviours observed during sleep and wakefulness, respectively, the single definition for bruxism is recommended be "retired" in favour of 2 separate definitions. In this sense, the sleep bruxism is a masticatory muscle activity during sleep that is characterised as rhythmic (phasic) or non-rhythmic (tonic) and is not a movement disorder or a sleep 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: Sociodemographic: self-reported ethnicity, marital status, education level; Occupational: individuals were asked about work outside home, working hours; Clinical condition: body mass index, smoking; alcohol consumption; use of sleeping pills.

Sleep Quality, was evaluated with the following questions: Sleep behavioral, how long does it take to sleep; restless sleep; nightmares; heartburn, obstructive sleep apnea by polysomnography. Bedtime, sleep time. Waking during the night, insomnia. Morning wake up, headache on waking; Lastly, Sleep structure data: sleep onset latency, rapid eye movement, sleep latency, wake time after sleep onset, total sleep time, sleep efficiency, non-rapid eye movement, sleep time in stages N1, N2, and N3, REM sleep time, arousal, arousal per hour, respiratory disturbance index, apnea-hypopnea index; and Epworth Sleepiness Scale.

Dates

Darrera verificació: 05/31/2019
Primer enviat: 11/18/2018
Inscripció estimada enviada: 01/29/2019
Publicat per primera vegada: 01/30/2019
Última actualització enviada: 07/03/2019
Publicació de l'última actualització: 07/07/2019
Data d'inici de l'estudi real: 12/31/2017
Data estimada de finalització primària: 07/23/2018
Data estimada de finalització de l’estudi: 11/14/2018

Condició o malaltia

Sleep Bruxism, Adult

Intervenció / tractament

Diagnostic Test: Polysomnography

Fase

-

Grups de braços

BraçIntervenció / tractament
With sleep bruxism by polysomnography
Adults (20 to 60 years) and elderly (> 60 years), (WHO-World Health Organization, 2015) who had undergone polysomnography (PSG) from January 2015 to December 2017 were assessed. All self-reports and PSG exams were included and reviewed. The participants were excluded if they presented with a history of neurological or degenerative disorders, and any objection to take the polysomnography test.
Without sleep bruxism by polysomnography
Adults (20 to 60 years) and elderly (> 60 years), (WHO-World Health Organization, 2015) who had undergone polysomnography (PSG) from January 2015 to December 2017 were assessed. All self-reports and PSG exams were included and reviewed. The participants were excluded if they presented with a history of neurological or degenerative disorders, and any objection to take the polysomnography test.

Criteris d'elegibilitat

Edats elegibles per estudiar 20 Years Per a 20 Years
Sexes elegibles per estudiarAll
Mètode de mostreigNon-Probability Sample
Accepta voluntaris saludables
Criteris

Inclusion Criteria:

- Adults (aged 20 to 60 years) and elderly (aged > 60 years) (WHO-World Health Organization, 2015) who were undergone to polysomnography (PSG) at the Pelotas Sleep Institute (PSI);

- Adequate cognitive capacity to understand and answer the questionnaire.

Exclusion Criteria:

• Those which the participants were unable to answer the questionnaires and who presented a history of epilepsy that could interfere in the results of PSG.

Resultat

Mesures de resultats primaris

1. Sleep Bruxism [4 months]

Patients included in the study received diagnosis of SB by polysomnography exams. 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.

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