For debate: problems with the DMF index pertinent to dental caries data analysis

被引:137
作者
Broadbent, JM [1 ]
Thomson, WM [1 ]
机构
[1] Univ Otago, Fac Dent, Dept Oral Sci, Dunedin, New Zealand
关键词
adjustment for reversals; dentistry; incidence density; longitudinal study; missing teeth;
D O I
10.1111/j.1600-0528.2005.00259.x
中图分类号
R78 [口腔科学];
学科分类号
1003 [口腔医学];
摘要
The Decayed, Missing, Filled (DMF) index has been used for over 50 years and is well established as the key measure of caries experience in dental epidemiology. Despite its long history of use, there is debate about the most appropriate number of surfaces to include for a missing tooth. Assigning the maximum possible value for the 'M' component of DMFS (Surfaces) leads to overestimation of an individual's caries experience, and in any associated comparisons of in-caries experience, whereas assigning the minimum possible value for the 'M' component has the opposite effect. Alternative methods of assigning the number of caries-affected surfaces for an extracted tooth are considered. The net caries increment and adjusted caries increment (common methods of correction of the crude increment measure for reversals) are discussed, along with incidence density, a measure of caries extent. Problems exist with the adjusted caries increment, particularly among cohorts with low mean baseline caries experience. Development of an alternative method of estimating the relationship of 'true' and 'examiner' reversals is advocated, as well as greater utilization of incidence density in dental epidemiology.
引用
收藏
页码:400 / 409
页数:10
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