Joint epidemiological longitudinal dental survey in Nigeria, especially in comparison with that of Japanese.

Since 1980 we carried out a longitudinal dental survey in Ile-Ife, as a joint study with the dental school of Ife University, Nigeria, being supported by A Grant under The Monbusho International Scientific Research Program for ten years. One thousand one hundred seventy-one children and adults were examined in the 1991 survey. The data were compared with the data in the previous survey and Japanese survey.

Response of the oral tissues to prolonged uninterrupted coverage by a removable partial denture. Case report.

The response of hard and soft oral tissues to prolonged uninterrupted wearing of a removable partial prosthesis in a Nigerian patient is discussed. To our knowledge only one case has been reported in the literature. In this case additional mucosal changes to the reported caries-free pattern is discussed.

Five-year follow-up caries study among Nigerian children.

Eighty-five children (age in 1981, 3-9 yr) examined in the 1981 survey in Ile-Ife, Nigeria, were seen again in 1986. In addition cross-sectional caries data in a small sample of 6-14-yr-olds were compared with data obtained in 1986. Results show that caries prevalence rate and the average number of DMFT increased slightly in the urban area, but was still very low.