Effects of nocturnal wearing of dentures on the quality of sleep and oral-health-related quality in edentate elders with untreated sleep apnea: a randomized cross-over trial
Elham Emami, Gilles Lavigne, Jocelyne S Feine, Igor Karp, Pierre H Rompré, Fernanda R Almeida, Nelly T Huynh, Elham Emami, Gilles Lavigne, Jocelyne S Feine, Igor Karp, Pierre H Rompré, Fernanda R Almeida, Nelly T Huynh
Abstract
Study objectives: This study aims to assess whether the nocturnal wear of dentures has an effect on the quality of sleep and oral-health-related quality of life of the edentulous elderly with untreated sleep apnea.
Methods: A single-blind randomized cross-over design with two sequences and two periods was used. Participants (n = 77) were randomly assigned either to sequence 1 (nocturnal wear followed by nocturnal nonwear of the denture for 30-30 days) or sequence 2 (nocturnal nonwear followed by nocturnal wear of denture for 30-30 days). The primary sleep outcome was the quality of sleep, assessed through sleep fragmentation measured as Apnea-Hypopnea Index (AHI) and respiratory arousal from portable polysomnography. Secondary outcomes were daytime sleepiness, sleep quality (Pittsburgh Sleep Quality Index, PSQI) and oral-health-related quality of life measured by validated questionnaires.
Results: The mean paired difference in AHI scores for the period of wearing versus not wearing dentures at night was small 1.0 event per hour (p = 0.50; 95% confidence interval (CI) = -2.0 to 4.1). The mean respiratory arousal index was higher when wearing dentures at night than when not wearing dentures at night, with a mean paired difference of 2.3 events per hour (p = 0.05; 95% CI = 0.0 to 4.6). No difference in sleepiness and PSQI were noted. Wearing dentures at night resulted in a statistically significantly higher mean score of psychological discomfort when compared to not wearing dentures at night.
Conclusions: The results provide some support to usual practice guidelines to remove dentures at night in edentulous elders suffering from sleep apnea.
Clinical trial registration: NCT01868295.
Keywords: edentulism; nocturnal wear of complete denture; obstructive sleeping apnea; polysomnography; sleep disorders.
© Sleep Research Society 2021. Published by Oxford University Press on behalf of the Sleep Research Society.
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Source: PubMed