口腔矫治器振动反馈刺激对睡眠磨牙症的影响：一项为期 6 周的干预试验。
Effects of vibratory feedback stimuli through an oral appliance on sleep bruxism: a 6-week intervention trial.
机构信息
Department of Prosthodontics, School of Dentistry, Showa University, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo, 145-8515, Japan.
Department of Special Needs Dentistry, Division of Temporomandibular Disorders, School of Dentistry, Showa University, 2-1-1 Kitasenzoku, Ohta-ku, Tokyo, 145-8515, Japan.
出版信息
Sleep Breath. 2022 Jun;26(2):949-957. doi: 10.1007/s11325-021-02460-7. Epub 2021 Aug 9.
PURPOSE
Various biofeedback stimulation techniques of managing sleep bruxism (SB) have recently emerged; however, the effect of successive application of vibratory feedback stimulation has not been clarified. This study elucidated the effect of vibration feedback stimulation via an oral appliance (OA) on SB when vibration feedback was applied for 4 weeks.
METHODS
This was a prospective, single-arm, open-label, intervention study. Ten participants diagnosed with "definite" SB wore a specially designed OA for 45 nights in a home-setting. A force-based SB detection system, including a pressure-sensitive piezoelectric film placed internally in the OA, triggered a vibrator attached to the OA. Vibratory stimulation was withheld during the first 2-week adaptation period (1st-15th nights), applied during the 4-week stimulation period (16th-43rd nights), and again withheld during the post-stimulation period (44th and 45th nights). The number and duration of SB episodes/hour of sleep were calculated based on masseter electromyographic activity recorded with in-home portable polysomnography and compared between the 15th and 45th nights (without stimulation) and the 17th and 43rd nights (with stimulation).
RESULTS
The number and duration of SB episodes significantly decreased after vibratory stimulation (15th vs. 17th nights: p = 0.012 and p = 0.012, respectively), then significantly increased upon cessation of vibratory stimulation after the stimulation period (43rd vs. 45th nights: p = 0.023 and p = 0.023, respectively).
CONCLUSION
Contingent vibratory stimulation through an OA may suppress SB-related masticatory muscle activity continuously for 4 weeks and may be an effective alternative for the management of SB.
TRIAL REGISTRATION
https://jrct.niph.go.jp/ ; trial registration number: jRCTs032190225.
目的
管理睡眠磨牙症（SB）的各种生物反馈刺激技术最近已经出现；然而，连续应用振动反馈刺激的效果尚未明确。本研究通过口腔矫治器（OA）阐明了振动反馈刺激对 SB 的影响，振动反馈刺激在 4 周内持续应用。
方法
这是一项前瞻性、单臂、开放标签、干预研究。10 名被诊断为“明确” SB 的参与者在家中环境中佩戴专门设计的 OA 45 晚。包括放置在 OA 内的压力敏感压电薄膜在内的基于力的 SB 检测系统触发连接到 OA 的振动器。在最初的 2 周适应期（第 15 晚）期间，振动刺激被搁置，在 4 周刺激期（第 16 晚至第 43 晚）期间应用，在刺激后期间（第 44 晚和第 45 晚）再次搁置。根据在家中便携式多导睡眠图记录的咀嚼肌肌电图活动，计算每小时睡眠中的 SB 发作次数和持续时间，并将第 15 晚（无刺激）和第 17 晚（有刺激）与第 43 晚（有刺激）和第 45 晚（无刺激）进行比较。
结果
振动刺激后，SB 发作次数和持续时间明显减少（第 15 晚与第 17 晚：p=0.012 和 p=0.012），刺激期结束后停止振动刺激时，明显增加（第 43 晚与第 45 晚：p=0.023 和 p=0.023）。
结论
通过 OA 进行的条件振动刺激可能会连续 4 周抑制与 SB 相关的咀嚼肌活动，并且可能是 SB 管理的有效替代方法。
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