Comparative study of oral health status of mentally sub-normal, physically handicapped, juvenile delinquents and normal children of Bombay.

Prevalence study on dental caries and periodontal disease carried out in 94 mentally subnormal, 92 physically handicapped, 74 juvenile delinquents and 206 normal children (11-14-year-old) revealed high prevalence of periodontal disease in handicapped (95 to 100%) and low in normal children (54.37%). The point prevalence of dental caries was higher in normal children (84.9%, DMFS 6.19) followed by juvenile delinquents (75.67%, DMFS 4.3), physically handicapped (73.91%, DMFS 4.3) and mentally subnormal (64.9%, DMFS 4.48).