Periodontal Observation with Ramfjord Indices in Institutionalized Mental Retardates at Admission.
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概要
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Epidemiological analyses using the Ramfjord Periodontal Disease Index (PDI), Calculus Index (CI) and Plaque Index (PI) were performed on 881 mental retardates possessing one or more subject teeth at 15-48 years of age. They were among a group of 1107 subjects who were admitted to the Niigata Prefectural Institute of Total Training for the Mentally Retarded, Colony Niigata Shiroiwa-no-Sato, during the years 1971-1988.<BR>(1) The PDI was 1.14-1.87 for the 15-19-year-olds in the periods 1971-1975, 1976-1981 and 1982-1988, and 3.88 and 3.09 for 45-54-year-old males and females in 1982-1988; it increased with the age of the newcomers of all 3 periods with regard to the time of admission. The CI also gradually increased with age, to 1.25 and 1.16 in 45-54-year-old males and females in 1982-1988, from 0.27-0.73 in 15-19-year-olds in the same 3 periods. The PI tended to increase very gradually with age, within the range of 1.19-1.83 both for males and females of the same age group and admission period settings.<BR>(2) A decrease of PDI, CI and PI was found between males admitted in the years 1971-1975 and those admitted during 1982-1988. Though there was a difference in the 3 indices by gender and by intelligence quotient in 1971-1975, no difference was recognized in 1976-1981 and 1982-1988. Institutional and non-institutional comparison revealed no difference as far as a newcomer's history before the admission to the Colony was concerned.
- 有限責任中間法人 日本口腔衛生学会の論文
有限責任中間法人 日本口腔衛生学会 | 論文
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