Diagnosis of non-cavitated occlusal caries is generally considered problematic. The aim of this study was to evaluate the utility of the laser fluorescence device DIAGNOdent as part of routine dental check-ups in children. A total of 613 occlusal surfaces on permanent molars and 436 surfaces on primary molars in children aged 7–8 (n = 55) and 13–14 years (n = 54) were examined visually, using DIAGNOdent and for most 13- to 14-year-olds also using radiographs. The teeth were not cleaned professionally before examination. To provide a gold standard for carious teeth, the depth of the caries lesion was determined in those lesions that were judged visually to need opening by drilling (51 teeth). The higher the visual score, the higher were the mean DIAGNOdent values, but in each visual category the variation among values was large. The presence of a clear sealant did not affect DIAGNOdent measurements. The values for permanent and primary molars differed slightly. For permanent teeth, Youden’s index value was highest (60%) at a cut-off value of 30, which indicates that the overall performance for DIAGNOdent in detecting dentinal caries was best at this point. Using this cut-off, sensitivity was 92% and specificity 69% with visual examination for validation, while sensitivity was 92% and specificity 82% with validation by fissure opening. Of the three methods, radiographic examination was the least accurate. In routine dental check-ups of children, DIAGNOdent appears to be useful as an adjunct to visual examination.
The aims of the present study were to evaluate the prevalence and severity of oral health impacts among adults and to analyse the effects of age, gender, level of education, number of teeth, and removable denture wearing on these impacts. Nationally representative data (n = 5,987) on Finnish adults aged 30+ yr were gathered in an interview, in a clinical examination, and by a questionnaire including the 14-item Oral Health Impact Profile. Subject age and the number of teeth were significantly associated with oral impacts (occurring fairly or very often) when the effects of gender, educational level, and removable dentures were considered. When subjects >/= 75 yr of age were used as the reference group, the odds ratios (95% confidence interval) were 0.5 (0.3-0.8) and 0.7 (0.5-0.9) for 30-34-yr-old and 34-74-yr-old subjects, respectively. The odds ratios for those with 1-9 teeth and for those who were edentate were 3.4 (2.4-4.9) and 4.0 (2.6-6.3), respectively (20+ teeth as reference). Number of teeth modified the effect of denture wearing, and age modified the effect of educational level on oral impacts. Impaired subjective oral health related to many missing teeth might be improved by wearing removable dentures. Population groups needing special attention are young people with low education and those for whom only a few missing teeth are replaced with removable dentures.
This paper considers the question of whether, by using the currently available measures for assessing caries risk, one can identify with sufficient accuracy the high caries-risk susceptible individuals who need individual protection to avoid having an unacceptably high number of new cavities. In addition, the outline of a typical caries prediction study is presented with an example, Finally, the accuracy of an actual caries prediction is compared with the accuracy of predicting the onset of acute myocardial infarction in order to point out the fact that the risk of any disease is difficult to assess accurately.
The negligible difference between the HRI and HRB groups implies that intensifying prevention produced practically no additional benefit. By offering all children only basic prevention, virtually the same preventive effect could have been obtained with substantially less effort and lower costs.
There was similar support for the lifecourse models of critical period, accumulation and social trajectories. They collectively contribute to a better understanding of oral health inequalities.
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