Dieltjens et al. Trials (2020) 21:339 https://doi.org/10.1186/s13063-020-04313-2

CORRECTION Open Access Correction to: Remotely controlled mandibular positioning of oral appliance therapy during polysomnography and drug-induced sleep endoscopy compared with conventional subjective titration in patients with obstructive sleep apnea: protocol for a randomized crossover trial Marijke Dieltjens1,2,3*, Marc J. Braem1,3, Sara Op de Beeck1,2,4, Anneclaire V. M. T. Vroegop1,2, Elahe Kazemeini1,2, Eli Van de Perck1,2, Jolien Beyers2, Chloé Kastoer1,2, Kristien Wouters5, Marc Willemen4, Johan A. Verbraecken4,6,7 and Olivier M. Vanderveken1,2,4

Correction to: Trials http://dx.doi.org/10.1186/s13063-019-3698-4

Following publication of the original article [1], the au- Medicine and Pediatrics (LEMP), Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Antwerp, Belgium. thors reported that Fig. 1 had not been corrected based on the reviewer’s comments. The correct Fig. 1 is pre- sented below. Reference Author details 1. Dieltjens, et al. Remotely controlled mandibular positioning of oral 1Translational Neurosciences, Faculty of Medicine and Health Sciences, appliance therapy during polysomnography and drug-induced sleep University of Antwerp, Wilrijk, Antwerp, Belgium. 2Department of endoscopy compared with conventional subjective titration in patients with Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, obstructive sleep apnea: protocol for a randomized crossover trial. Trials. Wilrijkstraat 10, 2650 Edegem, Antwerp, Belgium. 3Department of Special 2019;20:615. https://doi.org/10.1186/s13063-019-3698-4. Dentistry Care, Antwerp University Hospital, Edegem, Antwerp, Belgium. 4Multidisciplinary Sleep Disorders Centre, Antwerp University Hospital, Edegem, Antwerp, Belgium. 5Clinical Trial Center, Antwerp University Hospital, Edegem, Antwerp, Belgium. 6Department of Pulmonology, Antwerp, University Hospital, Edegem, Antwerp, Belgium. 7Laboratory of Experimental

The original article can be found online at https://doi.org/10.1186/s13063- 019-3698-4. * Correspondence: [email protected] 1Translational Neurosciences, Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Antwerp, Belgium 2Department of Otorhinolaryngology, Head and Neck Surgery, Antwerp University Hospital, Wilrijkstraat 10, 2650 Edegem, Antwerp, Belgium Full list of author information is available at the end of the article

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Fig. 1 Schematic overview of the study design. Patients will undergo three titration procedures —subjective titration (green), titration PSG (orange) and, titration DISE (yellow) — in randomized order. This leads to six different possible sequences. A 1-week washout period is integrated between the different titration procedures. A follow-up sleep study is performed at the end of each titration method. DISE, drug-induced sleep endoscopy; MAD, mandibular advancement device; PSG, polysomnography