Three counties in Sweden (A, G, and W) with free orthodontic care and different orthodontic resources and geographic structures were studied in 1987. Samples of totally 942 young adults (mean age 18.8 years, SD 0.44) were examined concerning malocclusions and all orthodontic treatment provided by general practitioners or by orthodontic specialists. The care in a rural area (county G) with abundant specialist resources was based on specialist treatments easy assessable to the patients and supplemented by treatments, mainly without appliances and provided by general practitioners. There was a generous attitude of consultation with specialists and of providing treatment. The sparsity of specialist resources had in an urban area (county A) resulted in a greater restriction on providing treatments. The treatments were performed in a higher age and were, to a greater extent, not completed by the age of 19, and a smaller percentage of individuals were treated than in the other two counties. The care in a large rural area (county W) with long distances to the only specialist clinic was based on treatments provided by general practitioners. In spite of the few specialist resources there was a generous attitude of providing treatments. Interceptive methods were used to a great extent, and later completed with appliance therapy. According to a treatment priority index 44% of the untreated individuals in the three counties had malocclusions and an objective treatment need, and there were no significant differences between the counties. Regardless of differences in specialist resources and structure of the free public orthodontic care, a substantial and equal proportion of the untreated individuals in the counties had malocclusions with treatment need, but they had no treatment desire.