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Influence of cross-infection control methods on performance of pen-type laser fluorescence in detecting occlusal caries lesions in primary teeth

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Abstract

The aim of this in vitro study was to determine the influence of cross-infection control methods, as probe tip autoclaving and polyvinyl chloride (PVC) wrapping, on the performance of laser fluorescence device (DIAGNOdent pen—LFpen) on occlusal surfaces of primary molars. One experienced examiner carried out all examinations (n = 78). For the probe tip autoclaving study, 62 sites (sample A, 40 teeth) were used. The sites were assessed with LFpen using tips in six different conditions: without autoclaving and after autoclaving for 10, 20, 30, 40, and 50 cycles of 10 min. For the PVC wrapping study, we selected other 58 sites (sample B, 38 teeth). The sites were assessed with the LFpen device in two conditions: with and without PVC wrapping. The teeth were sectioned and histologically assessed for caries depth. LFpen values, sensitivity, and specificity were compared among the different conditions. The LF readings were slightly higher after successive examinations, independently of autoclaving. In both studies, no statistical differences in the sensitivity and specificity were observed for all conditions. In conclusion, probe tip autoclaving and PVC wrapping do not influence the performance of LFpen device on occlusal surfaces of primary molars.

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Acknowledgments

The authors wish to thank the participants of the Post-Graduation in Pediatric Dentistry Seminar of FOUSP for the critical comments put forth. The study was supported by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq—process nos. 476372/2006-2, 302368/2008-6, and 565061/2008-9), Pró-Reitoria de Pesquisa e de Pós-Graduação da USP, and Fundação de Amparo à Pesquisa do Estado de São Paulo. The authors are also grateful to Dr. Ana O'Such for English corrections.

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Authors and Affiliations

  1. Department of Orthodontics and Pediatric Dentistry, School of Dentistry, Universidade de São Paulo, Av. Prof. Lineu Prestes, 2227, 05508-000, São Paulo, SP, Brazil

    Ronilza Matos, Tatiane Fernandes Novaes, Alessandra Reyes, Monique Saveriano De Benedetto, Fausto Medeiros Mendes & Mariana Minatel Braga

  2. São Leopoldo Mandic Institute and Research Center, Rua Dr. José Rocha Junqueira, 13, Ponte Preta, 13045-755, Campinas, São Paulo, Brazil

    Monique Saveriano De Benedetto

Authors
  1. Ronilza Matos
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  2. Tatiane Fernandes Novaes
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  3. Alessandra Reyes
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  4. Monique Saveriano De Benedetto
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  5. Fausto Medeiros Mendes
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  6. Mariana Minatel Braga
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Corresponding author

Correspondence to Mariana Minatel Braga.

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Matos, R., Novaes, T.F., Reyes, A. et al. Influence of cross-infection control methods on performance of pen-type laser fluorescence in detecting occlusal caries lesions in primary teeth. Lasers Med Sci 28, 185–192 (2013). https://doi.org/10.1007/s10103-012-1092-5

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  • DOI: https://doi.org/10.1007/s10103-012-1092-5

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