精神発達遅滞児の歯科疾患および歯列弓・口蓋に関する研究
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概要
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Dental prevention for mentally retarded and handicapped children is indeed desirable in view of difficulty of dental treatment for them. Therefore, the purpose of this study was to obtain fundamental concerning the planning of oral health for mentally retarded children and to have a grasp of their oral traits. Non-institutionalized mentally retarded children in Kitakyushu (M.R. group), totaling 101 subjects (64 males and 37 females) from 3 to 5 in age, were studied on their teeth, gingival disease, and dental arch and palatal vault form. The results were as follows : 1. The mean number of deciduous teeth of the M.R. group was significantly lower than that of the normal group in females. The mean number of d teeth of the M.R. group was significantly higher than that of the normal group in females. The mean number of f teeth of the M.R. group was significantly lower than that of the normal group in both males and females. 2. The debris index (DI) of the M.R. group was significantly higher than that of the normal group in both males and females. The PMA index of the normal group was significantly higher than that of the normal group in males. 3. With regard to dental arch and palatal vault from in males, dental arch breadths (upper deciduous canine, upper 1st and 2nd deciduous molar, and lower 2nd deciduous molar region) of the M.R. group were significantly narrower ; length of the lower dental arch (<A|A>^^^--<D|>^^^- region) of the M.R. group was significantly shorter ; posterior palatal height of the M.R. group was significantly lower ; and palatal arch length (2nd deciduous molar region) of the M.R. group was significantly shorter than those of the normal group. Upper anterior-posterior dental arch breadth index, and upper anterior and posterior dental arch indicies of the M.R. group were significantly higher than those of the normal group. 4. As to dental arch and palatal vault form in females, dental arch breadths (lower 1st and 2nd deciduous molar region) of the M.R. group were significantly narrower ; length of the lower dental arch (<A|A>^^^--<|D>^^^- region), lower anterior and lower posterior dental arch length of the M.R. group were significantly shorter ; and anterior and posterior palatal heights of the M.R. group were significantly lower than those of the normal group. Posterior palatal height index of the M.R. group was significantly lower than that of the normal group. On the basis of the foregoings, although percentage of filled teeth of mentally retarded children tended to be lower than that of normal children, incidence of dental caries in deciduous teeth showed about the same level between the two groups. And it was suggested that dental arch breadth was narrower, dental arch length shorter, and palatal height lower in the M.R. group than in the normal group in both males and females.
- 九州歯科学会の論文
- 1984-02-25
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- 精神発達遅滞児の歯科疾患及び歯列弓・口蓋に関する研究 : 主論文の要旨
- 精神発達遅滞児の歯科疾患および歯列弓・口蓋に関する研究