Comparison between visual clinical examination and the replica method for assessments of sealant retention over a 2-year period / 国际口腔科学杂志·英文版

To compare the levels of agreement and the survival rates of sealant retention for different sealing materials over a 2-year period assessed using the visual clinical examination and replica methods, sealant retention data were obtained by visual clinical examination and from replicas of the same sealed tooth at baseline and at 0.5-, 1- and 2-year evaluation points in 407 children and were compared for agreement using kappa coefficients. Survival curves of retained sealants on occlusal surfaces were created using modified categorisation (fully retained sealants and those having all pits and fissures partly covered with the sealant material versus completely lost sealants that included pit and fissure systems that had ≥1 pit re-exposed) according to the Kaplan-Meier method. The kappa coefficient for the agreement between both assessment methods over the three evaluation time points combined was 0.38 (95% confidence interval (CI): 0.35-0.41). More sealant retention was observed from replicas than through visual clinical examination. Cumulative survival curves at the three evaluation times were not statistically significantly higher when assessed from replicas (P=0.47). Using the replica method, more retained sealant material was observed than through visual clinical examination during the 2-year period. This finding did not result in a difference in the survival rates of sealants assessed by the two assessment methods. When replicas cast in die stone are used for assessing sealant retention, the level of reliability of the data is higher than that of data obtained through the commonly used visual clinical examination, particularly if such assessments are conducted over time.

Prevalence of caries and lesions treatable through the ART approach in high caries risk schoolchildren in Damascus, Syria

To determine the prevalence of dentinal lesions treatable through the atraumatic restorative treatment [ART] approach for high caries risk schoolchildren. Subjects and A convenience sample was taken of 1,542 grade 1 and 931 grade 2 children from 21 primary schools in a low socio-economic area in Damascus. Dentinal lesions in which the smallest excavator [diameter of 0.9 mm] could enter the cavitated lesion were considered treatable using the ART approach. Mann-Whitney U and ANOVA tests were used to analyse the data. The mean dmfs and dmft scores of the 6- to 7-year-olds [grade 1] were 9.0 and 4.4, respectively. The mean DMFS and DMFT scores of the 7- to 8-year-olds [grade 2] were 1.6 and 1.4, respectively. At least 89.9 and 54.9% of the dentinal lesions in the deciduous and permanent dentition that were in need of a restoration, respectively, were diagnosed as treatable using ART. A high proportion of dentinal lesions in need of restorations in both deciduous and permanent dentitions in this high caries risk group of 6- to 8-year-olds were diagnosed as being treatable using the ART approach