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The European Journal of Orthodontics 1987 9(1):216-223; doi:10.1093/ejo/9.1.216
© 1987 by European Orthodontic Society
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Natural lip function in wind instrument players

Susanne Fuhrimann, Andres Schüpbach, Urs Thüer and Bengt Ingervall

Orthodontic Clinic, University of Bern Switzerland

Dr Urs Thuer Klinik fur Kieferorthopadie Freiburgstrasse 7, CH-3010 Bern Switzerland

The lip strength, lip muscle activity, pressure from the lips on the teeth and the morphology of the face and the dentition were studied in professional wind instrument players. Twelve trumpeters and twelve clarinetists, aged 19–55 years, were compared with a control group of dental students.

The lip strength was measured with a dynamometer. Electromyographic measurements of the lip muscle activity and recordings of the pressure from the lips on the front teeth were made in the rest position, during chewing and speech and during playing of the instrument. The morphology was studied with x-ray cephalometry and on dental casts.

There were practically no differences between the two groups of musicians or in relation to the control group. Thus, the musicians had the same lip strength, the same muscle activity of the lips and the same pressure from the lips on the teeth during natural functions as did the control group. The pressure from the soft tissues on the teeth during playing of the instrument was considerably greater than during natural lip function but no effect on bite morphology was discernible.


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