Autoclaving and battery capacity influence on laser fluorescence measurements
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Acta Odontologica Scandinavica
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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.
Como referenciar
CABRAL, RENATA M.R.; MENDES, FAUSTO M.; MIURA, FABIANA; RIBEIRO, ADRIANA da C.; BRAGA, MARIANA M.; ZEZELL, DENISE M. Autoclaving and battery capacity influence on laser fluorescence measurements. Acta Odontologica Scandinavica, v. 66, p. 122-127, 2008. DOI: 10.1080/00016350802017484. Disponível em: http://repositorio.ipen.br/handle/123456789/5010. Acesso em: 30 Dec 2025.
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