In a previous study concerning oral function with shortened dental arches, it was found that approximately 10 per cent of the patients investigated complained of impaired masticatory ability despite a substantial reduction in arch length and, as a consequence, food platform area. This finding differs from those of studies relating masticatory performance to food platform area. From a review of pertinent literature, it is concluded that impairment of masticatory ability is manifest when less than 10 occluding pairs of teeth are present. Shortened dental arches are not associated with shifts in food selection adversely affecting general health.