Presence of Enamel Fluorosis in Libyan Children
关键词
抽象
描述
The optimal concentration is defined as that which gives maximal protection against dental caries, with minimal clinically observable dental fluorosis (Dunning 7). This level is determined according to the climate and the resultant drinking habits (Newborn 6). Cawson 1 stated that mottling of enamel is the most frequently seen and most reliable sign of excessive quantities of fluoride in the drinking water. Dean 8 concluded that a fluoride level of above 1ppm does not significantly reduce caries beyond the optimal effect of 1ppm.
Different classifications have been introduce to score dental fluorosis. (Dean 9, Al -Alousi 10, Thylstrup & Fejerskov 11, (Fejerskov, 12). and the DDE index by FDI 1982). Aira Sabokseir 13, concluded, fluorosis indices, if used alone, could result in misdiagnosis of dental fluorosis and information about adverse health-related conditions linked to DDEs (Developmental Defects of Enamel) at specific positions on teeth could help to differentiate between genuine fluorosis and fluorosis-resembling defects.Various figures for mouth prevalence of enamel fluorosis have been reported by different investigators. 39.2% by Al-Alousi 10, for Welsh children, 32% by Akpata 14 for Nigerian children. Using the DDE index of the FDI (1982), Al alousi 10 defective enamel of 48.9% in children from south Wales. In England,Tabari 15 found the prevalence of fluorosis was 54% in the fluoridated area and 23% in the fluoride-deficient area. In Iran the prevalence of fluorosis was 61% (Azami-Aghdash et al., 16).
日期
最后验证: | 10/31/2018 |
首次提交: | 11/15/2018 |
提交的预估入学人数: | 11/15/2018 |
首次发布: | 11/19/2018 |
上次提交的更新: | 11/15/2018 |
最近更新发布: | 11/19/2018 |
实际学习开始日期: | 01/09/2017 |
预计主要完成日期: | 05/31/2017 |
预计完成日期: | 05/31/2017 |
状况或疾病
相
手臂组
臂 | 干预/治疗 |
---|---|
observational Total of 2015 Libyan school children aged 7 to 16 years, from urban (Tobruk) and rural (Kufra) areas were included in the main study. The children were of almost equal number of both sexes from each age group (table-I) .The total of 1935 children were examined for enamel fluorosis |
资格标准
有资格学习的年龄 | 7 Years 至 7 Years |
有资格学习的性别 | All |
取样方式 | Non-Probability Sample |
接受健康志愿者 | 是 |
标准 | Inclusion Criteria: - Libyan children born and lived in the same area. 2. Limited to incisors only. Exclusion Criteria: - Non- Libyan children. 2. Children who born or lived outside the study areas. 3. Incisors with class II fracture (Ellis type 1970) or crowned |
结果
主要结果指标
1. Grading of mottling [From baseline to 5 months]