Fig. 1From: Study protocol for the SOFIA project: Swallowing function, Oral health, and Food Intake in old Age: a descriptive study with a cluster randomized trialOral screen training. (Left) The oral screen is inserted predentally, behind closed lips. (Right) The patient must press the lips firmly together, then strongly pull the handle straight forward, away from the mouth, and maintain pressure for 5–10 s. Illustrations: Mary Hägg©Back to article page