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Psychiatry Clin Neurosci. 2002 Jun;56(3):331-2.

Effectiveness of a tongue-retaining device.

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1
Cosmos Orthodontic Office, Narita, Chiba, Japan. higurashi.naoki@nifty.ne.jp

Abstract

The effectiveness of a tongue-retaining device (TRD) was examined at the baseline without any TRD [TRD(-)] and then with a TRD [TRD(+)] in eight patients with obstructive sleep apnea (OSA). In terms of the 3+ % oxygen desaturation index (ODI3), lowest percutaneous oxygen saturation (SpO2), and time spent SpO2 < 90%, there were significant differences (P < 0.01-0.05) between the findings for TRD(-) and TRD(+). The ODI3 dropped below the baseline by more than 50% in five patients (63%) and dropped to fewer than 10 events/ h in six patients (75%). The results indicate that oral appliances help patients with mild to moderate OSA; however, patients with more severe OSA may also be treated effectively with a TRD.

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