Impact of the type of mask on the effectiveness of and adherence to continuous positive airway pressure treatment for obstructive sleep apnea.

J Bras Pneumol · 2014 · PMC4301251 · PMID 25610507

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( 34 ) The oral mask also showed a trend toward a worse performance, the residual AHI being higher in those who used it than in those who used a nasal mask.

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