Methods of measuring tongue size are evaluated, and protruded tongue size is related to sex, malocclusion, and speech. Significant correlations are found with sex and speech.

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Author notes

Richard G. Oliver is Senior Lecturer and Honorary Consultant in the Department of Orthodontics at the University of Wales College of Medicine. He is a Dental graduate (B.D.S.) of the University of London, and holds an M.Sc.D. in Orthodontics from the University of Wales

Sian P. Evans is a dental graduate (B.D.S.) of the University of Wales in Cardiff