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Joint Dental Survey in Nigeria (Follow-up Research)

尼日利亚联合牙科调查（后续研究）

基本信息

批准号：
03041032
负责人：
KUBOTA Kinziro
金额：
$ 5.12万
依托单位：
Tokyo Medical And Dental University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1991
资助国家：
日本
起止时间：
1991 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03041032/
关键词：
Nigerian children dental diseases 5-year follow-up research dental caries periodontitis attrition X-ray image of TMJ gnathostatic model

项目摘要

Kubota organized a surveying team with seven dentists and Nigerian co-workers, Prof. Hollist, Dr. Olusile, . Dr. Ajyai-Ohe and Emeritus Prof. Grillo to perform the epidemiological survey of dental diseases of Nigerian people in lie-ife and its environs. This survey has been doing at the same schools in the same place longitudinally every five-year, first in 1981, second in 1986 and third in 1991 since 1980. The results obtained through these lorigitudinal surveys were as follows ; the oral hygenic situation of Nigerian people is quite low, but is low in the caries experience and they have no malocclusion and the permanent dentition is composed of 32 teeth which showed intensive attrition. The purpose of the present investigation is to certify that how a chew affects the postnatal growth of the masticatory system through their traditional food life.Subjects and MethodsThe present longitudinal research was performed during the period from October 28 to November 22, in 1991. Each 60 child … More ren of 3, 5, 6, 8, 10, 12 years age, the five-year follow-up children and adults from 14 to 70 years old were examined totally 1560 (780 in rural, 780 in urban) in children and 300 rural adults. the dental caries, periodontal diseases, plaster impression of the jaws to make plaster model, biting force, attrition, X-ray image of jaw joint, dental X-ray were examined. Permission of their parent was given for X-ray examination of children below the 19 years old. The food life, weaning period and member of a family were questioned by an interview in 130 families.RESULTS OBTAINED1) The percentage of caries experienced person did not increase in comparison with that of ten or five years ago. 2) 556 gnathostatic medels of 278 subjects were made using Alginate impression material. The models were classified by a dental age into 4 categories, lla stage (89), llla stage (44), lVa stage (57) and Va stage(88), in which the measurement of breadth between canies, length of dental arch etc. are to measure. 3) Nigerian food habit, weaning period and family composition are analyzed in the 130 families. 4) X-ray image of the jaw joint is examined as a remodeling of the joint head according to the intensive attrition of the full dentition. 5) The roentogenographic cephalogram is analyzed in comparison of the biting force. 6) The treatment need grade of periodontal diseases by CPITN and dental plaque, dental calculus and gingivitis are analyzed. The gingivitis, plaque and calculus were seen in a high frequency and it does not move to the periodontitis. The dental X-ray films of the permanent dental arch (100) showed that the alveolar bone absorption showed an tendency of increase with age, but the periodontitis was quite repressive. Less

久保田组织了一个由七名牙医和尼日利亚同事组成的调查小组，霍利斯特教授，奥卢泰尔博士，。Ajyai-Ohe博士和Grillo荣休教授在Lie-ife及其周围地区对尼日利亚人的牙科疾病进行流行病学调查。这项调查每五年在同一地点的同一所学校纵向进行一次，第一次是1981年，第二次是1986年，第三次是自1980年以来的1991年。这些纵向调查的结果如下：尼日利亚人口腔卫生状况较低，但龋病发生率较低，无错牙合，恒牙列由32颗牙齿组成，磨损严重。本次调查的目的是证实咀嚼如何通过他们传统的饮食生活影响咀嚼系统的出生后发育。每名60名儿童…对3、5、6、8、10、12岁儿童和14~70岁成人共1560名(农村780名，城市780名)和300名农村成人进行了5年随访。检查龋病、牙周病、制作牙膏模型的颌面石膏压痕、咬合力、磨损量、颌骨关节X线片、牙科X线片。19岁以下儿童的X光检查得到了父母的允许。对130个家庭的饮食生活、断奶时间和家庭成员进行了访谈。结果1)患龋者的比例与10年前或5年前相比没有增加。2)用海藻酸盐印模材料制作了278名受试者的556个下颌骨固定模型。根据牙龄将模型分为4类：11a期()、11a期(44例)、LVa期(57例)和Va期(88例)，分别测量尖牙宽度、牙弓长度等。3)对130个家庭的饮食习惯、断奶时间和家庭组成进行了分析。4)根据牙列的严重磨损，将颌骨关节X线片检查为关节头部的重塑。5)比较咬合力对X线片的影响。6)CPITN治疗牙周病的需求分级，并对牙菌斑、牙石、牙周炎进行分析。牙周炎、菌斑和牙石的发生率较高，不会转移到牙周炎。恒牙弓(100)的X线片显示，牙槽骨吸收随年龄增长有增加的趋势，但牙周炎较明显。较少