Physical inactivity is prevalent among patients with intellectual disability. Because little is known about the oral effects of poor mobility, we reviewed the medical and dental charts of institutionalized dentate patients (n = 214; 40.2 years +/- 12.1) of the Special Welfare District of Southwestern Finland. The number of decayed, missing, and filled teeth (DMFT), the number of retained teeth, dental treatment visits, and the type of the first treatment visit were recorded. Physical activity was good in 55% and severely reduced or completely absent in 45% of the patients. The degree of intellectual disability was mild or moderate in 40% and severe or profound in 60% of the patients. The walking patients weighed more (64.3 (19.6) versus 44.4 (14.4) kg; P