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The relationship between dental diseases in deciduous and permanent dentition of the same indivisuals

同一个体乳牙列与恒牙列牙病的关系

基本信息

批准号：
03454477
负责人：
MAYANAGI Hideaki
金额：
$ 2.11万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

项目摘要

The materials for this study are based on longitudinal of dental conditions in the same indivisuals which carried out from the age of one and a half to three and a half. Of these subjects, 54 children were reexamined at the age of twelve, continuously 40 at the age of thirteen and 32 at the age of fourteen for the present study. They were examined on dental diseases and caries activity at each investigation, according to def and DMF index, PMA index, diagnostic criteria for the assessment of occlusion in the anterior segment and caries activity test by Cariostat. The relationship between the prevalence of dental diseases, caries incremnet and caries activity in the deciduous dentition and those in the permanent dentition were analyzed. With respect to dental caries, coefficients of correlation between each indices of the deciduous dentition and permanent dentition were computed.Result1. Statistically significant correlations were obtained between the caries activity at the age of three and DMFT at the age of twelve, thirteen and fourteen.2. Significant correlations were obtained between deft at the age of three and DMFT at the age of twelve, thirteen and fourteen3. Significant correlations were not obtained between deft at the age of three and caries increment during the period from the age of twelve to fourteen.4. Significant correlations were obtained between caries increment during the period from the age of one and a half to three and a half and DMFT at the age of twelve, thirteen and fourteen.5. One third of both normal occlusion and malocclusion groups changed to the other occulusal conditions respectively in the permanent dentition.6. The maxillary protrusion and deep overbite in deciduous dentition had a tendency to have the same occlusal conditions in the permanent dentition.7. The prevalence of gingivitis in the subjects at the age of three was very low while they were remarkably high at the age of twelve, thirteen and fourteen.

本研究的材料是基于同一个体从一岁半到三岁半的牙齿状况的纵向调查。在这些受试者中，54名儿童在12岁时进行了复查，40名儿童在13岁时进行了复查，32名儿童在14岁时进行了复查。根据DEF和DMF指数、PMA指数、眼前段咬合诊断标准和Cariostat龋活跃性试验，对每例受检者进行口腔疾病和龋活跃性检查。分析乳牙期和恒牙期口腔疾病患病率、龋病增长率和龋活跃度之间的关系。计算乳牙期和恒牙期各指标与龋病的相关系数。3岁龋活跃度与12岁、13岁、14岁龋均呈显著正相关.三岁时的灵巧与十二岁、十三岁和十四岁时的DMFT之间存在显著相关。3岁时患龋量与12 ~ 14岁患龋量无显著相关性. 1.5 ~ 3.5岁龋增量与12、13、14岁龋均呈显著正相关。在恒牙期，正常组和错牙合组各有1/3的患者转为其他咬合状态.乳牙期上颌前突和深覆有在恒牙期咬合条件相同的趋势.牙龈炎的患病率在3岁时很低，而在12岁、13岁和14岁时则明显较高。