[Lesions of the oral mucosa].

Representative data were gathered about the prevalence of mucosal lesions in Dutch adults (15-74 years old). The reliability of the observation methods was moderate. Some data were not usable for this reason. Only a low percentage of people without a denture, had a mucosal lesion. About 60% of the people with a denture had hyperaemia of the palatine mucosa. A flabby ridge exists in 34% of the 35-54 year olds and in 51% of the 55-74 year olds with such a prosthesis.