Evaluation of lip force in patients with unilateral and bilateral cleft lip

Our aim was to investigate the differences in the dynamics of lip force between a group of participants with repaired cleft lips and a group of patients the same age but without clefts.We evaluated 101 children between the ages of 10 to 15 years (unilateral clefts n=35, bilateral clefts n=15, class I malocclusion n=25, and class III malocclusion n=26). Maximum and minimum forces required to close the lips were evaluated with the Lip De Cum® device (Cosmos Instruments Co Ltd, Tokyo, Japan) for the all groups.

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