Changes of dental treatment pattern in Norway in the 1970s.
Helöe L A·Community dentistry and oral epidemiology
With the aim of gauging utilization rates of dental services, a series of cross-sectional studies were performed in 1973, 1975 adnd 1977. Cluster samples of 1,600 individuals covering the Norwegian population aged 15 and above were interviewed by trained interviewers using standardized questions. The percentage of resp…