Pinelli Camila, Loffredo Leonor de Castro Monteiro, Serra Mônica Campos
Department of Community Dentistry, Araraquara Dental School, São Paulo State University.
Braz Dent J. 2010;21(5):405-10. doi: 10.1590/s0103-64402010000500005.
The aim of this study was to verify the drying effect on the reproducibility of DIAGNOdent (Dd) devices to detect caries-like lesions. Three areas were created in each of the 34 bovine incisors: sound (S), demineralized (DE) and remineralized (RE). One examiner measured each area with two Dd devices (denominated X and Y), twice under humid, and twice under dry condition. Intra-rater agreement according each device and inter-device agreement were estimated by kappa statistics (k). Intra-rater agreement for device Y was substantial under humid (κ (DE)=0.68 and κ (RE+S)=0.68) and dry condition (k DE=0.64 and k RE+S=0.67). For device X, it was substantial under humid condition (k DE=0.57 and k RE+S=0.49), and it was almost perfect after air drying (κ (DE)=1.0 and κ (RE+S)=1.0). Inter-device agreement was slight (k =0.17) under humid condition, and it was substantial under dry condition (k =0.62). As reproducibility increased under dry condition, drying is advised to detect caries-like lesions on free smooth surfaces when different devices are used.
本研究的目的是验证干燥对DIAGNOdent（Dd）设备检测龋样病变再现性的影响。在34颗牛切牙的每颗牙上创建三个区域：健康（S）、脱矿（DE）和再矿化（RE）。一名检查者使用两台Dd设备（分别命名为X和Y）对每个区域进行测量，在潮湿条件下测量两次，在干燥条件下也测量两次。通过kappa统计量（k）评估每个设备的检查者内一致性以及设备间一致性。设备Y在潮湿条件下（κ（DE）=0.68，κ（RE+S）=0.68）和干燥条件下（k DE=0.64，k RE+S=0.67）的检查者内一致性较高。对于设备X，在潮湿条件下一致性较高（k DE=0.57，k RE+S=0.49），在空气干燥后几乎达到完美（κ（DE）=1.0，κ（RE+S）=1.0）。在潮湿条件下设备间一致性较低（k =0.17），在干燥条件下一致性较高（k =0.62）。由于在干燥条件下再现性提高，因此建议在使用不同设备检测游离光滑表面的龋样病变时进行干燥处理。
