KIMThe Community Periodontal Index of Treatment Needs (CPITN) was used to assess the periodontal status of 213 handicapped persons attending seven institutions in Johannesburg. Fewer than 2% had healthy mouths, 8% had bleeding only, followed by calculus (46%), shallow pockets (40%) and deep pockets (4%). The mean number of sextants with bleeding or higher score was 5.9. Oral hygiene instruction was indicated for 98% and prophylaxis for 90% of the participants. The CPITN was easily used in the disabled population but may overestimate treatment need in view of the current understanding that periodontal disease does not automatically progress from a low CPITN level to the next. A more appropriate measure of treatment need in handicapped persons is require