RENATA MACIEL E ROCHA CABRAL
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Artigo IPEN-doc 11845 The influence of PVC seal wrap and probe tips autoclaving on the in vitro performance of laser fluorescence device in occlusal caries in primary teeth2006 - CABRAL, RENATA M. e R.; MENDES, FAUSTO M.; NICOLAU, JOSE; ZEZELL, DENISE M.The goal of this study was to evaluate the influence of a PVC Seal Wrap as barrier protection and the influence of auto-claving on the in vitro performance of a laser fluorescence device in detecting occlusal caries lesions in primary teeth. The clinical significance of the experiment is to create a protocol to avoid the possibility of underestimating caries in clinical setting.Artigo IPEN-doc 13211 Autoclaving and battery capacity influence on laser fluorescence measurements2008 - CABRAL, RENATA M.R.; MENDES, FAUSTO M.; MIURA, FABIANA; RIBEIRO, ADRIANA da C.; BRAGA, MARIANA M.; ZEZELL, DENISE M.Aim. To evaluate the influence of probe tip autoclaving and depleted alkaline batteries on laser fluorescence (LF-DIAGNOdent) device performance. Material and methods. One-hundred-and-twenty occlusal sites were analyzed with an LF device in nine conditions: No autoclaved probe and probe after 5, 10, 15, 20, 25, 30, 40, and 50 autoclaving cycles. Subsequently, the performance of the device was analyzed with: New batteries, batteries with 1.49/1.39 V, 1.38/1.37 V, 1.36/1.34 V, 1.33/1.32 V, and lower than 1.32 V. LF values, sensitivity, specificity, accuracy, and area under the ROC curve were compared. Results. In the probe study, sensitivity was lower after 50 sterilizing cycles, though specificity was higher than the assessment performed using a new tip. In the batteries study, specificity was higher for depleted batteries, but LF performance did not differ significantly among the groups. Conclusion. Batteries do not significantly influence device performance, but consecutive sterilization of probes in autoclave alters readings, downgrading its performance.