Department and Clinic of Psychiatry, Wroclaw Medical University, Wroclaw, Poland.
Department of Experimental Dentistry, Wroclaw Medical University, Wroclaw, Poland.
J Sleep Res. 2020 Dec;29(6):e13028. doi: 10.1111/jsr.13028. Epub 2020 Mar 11.
The aim of the study was to assess sleep structure, phenotypes related to bruxism activity and basic respiratory parameters among a large group of participants with sleep bruxism and without obstructive sleep apnea. Adult participants with clinical suspicion of sleep bruxism and with no other significant medical history were recruited. Video-polysomnography was performed to detect masseter muscles activity. Polysomnographic scoring was performed according to the American Academy of Sleep Medicine Criteria. Finally, 146 participants were included. The participants were divided into three subgroups: severe, mild and no sleep bruxism. There were no differences in total sleep time, sleep latency, sleep efficiency, wake duration after sleep onset, rapid eye movement, and measured respiratory parameters. The severity of sleep bruxism contributed to the increased intensity of all sleep bruxism phenotypes in almost all sleep stages, apart from tonic and mixed activity in non-rapid eye movement stage 3 sleep (slow-wave sleep). Those with bruxism spent more time in rapid eye movement sleep compared to controls; there were no differences in non-rapid eye movement sleep stages. The results confirmed that sleep bruxism does not significantly affect sleep duration, efficiency and continuity (in terms of sleep-wake cycles). Sleep bruxism contributes to a higher percentage of rapid eye movement sleep in the total sleep time. Those with bruxism present more frequent episodes during all stages of sleep; however, in the case of slow-wave sleep, tonic and mixed activity observed in participants with sleep bruxism are comparable to those of healthy people.
本研究旨在评估一组患有睡眠磨牙症且无阻塞性睡眠呼吸暂停的大量参与者的睡眠结构、与磨牙症活动相关的表型以及基本呼吸参数。招募了有临床疑似睡眠磨牙症且无其他重大病史的成年参与者。进行视频多导睡眠图以检测咀嚼肌活动。根据美国睡眠医学学会标准进行多导睡眠图评分。最终纳入 146 名参与者。参与者分为三组：重度、轻度和无睡眠磨牙症。总睡眠时间、睡眠潜伏期、睡眠效率、睡眠起始后醒来持续时间、快速眼动和测量的呼吸参数均无差异。睡眠磨牙症的严重程度导致几乎所有睡眠阶段的所有睡眠磨牙症表型的强度增加，除了非快速眼动睡眠 3 期（慢波睡眠）的紧张和混合活动。磨牙症患者在快速眼动睡眠中花费的时间多于对照组；非快速眼动睡眠阶段无差异。结果证实，睡眠磨牙症不会显著影响睡眠时间、效率和连续性（就睡眠-觉醒周期而言）。睡眠磨牙症导致总睡眠时间中快速眼动睡眠的比例更高。磨牙症患者在所有睡眠阶段都更频繁地出现发作；然而，在慢波睡眠中，磨牙症患者的紧张和混合活动与健康人相当。
