IngentaConnect Autoclaving and battery capacity influence on laser fluorescence ...

Authors: Rocha-Cabral, Renata MacIel¹; Mendes, Fausto Medeiros²; Miura, Fabiana²; Ribeiro, Adriana Da Costa³; Braga, Mariana Minatel²; Zezell, Denise Maria¹

Source: Acta Odontologica Scandinavica, Volume 66, Number 2, 2008 , pp. 122-127(6)

Publisher: Informa Healthcare

Abstract:

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.

Keywords: Dental caries; laser fluorescence; occlusal surfaces; primary teeth

Document Type: Research article

DOI: 10.1080/00016350802017484

Affiliations: 1: Centro de Lasers e Aplicações, Instituto de Pesquisas Energéticas e Nucleares, Comissão Nacional de Energia Nuclear, São Paulo, Brazil 2: Department of Pediatric Dentistry, School of Dentistry, Universidade de São Paulo, Brazil 3: Department of Restorative Dentistry, School of Dentistry, Universidade de São Paulo, São Paulo, Brazil

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Autoclaving and battery capacity influence on laser fluorescence measurements