The influence of zero value subtraction on the performance of a new laser fluorescence device for approximal caries detection

de Almeida Rodrigues, Jonas; Hug, Isabel; Lussi, Adrian (2009). The influence of zero value subtraction on the performance of a new laser fluorescence device for approximal caries detection. Lasers in medical science, 24(3), pp. 301-6. London: Springer London 10.1007/s10103-008-0549-z

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The aim of this study was to assess the influence of the zero value subtraction on the performance of laser fluorescence (LFpen) for approximal caries detection. Three areas (cuspal, middle and cervical) of both mesial and distal buccal surfaces of 78 permanent molars were assessed using both wedge-shaped (WDG) and tapered wedge-shaped (TWDG) tips. With the addition of the average, one cut-off value for each area was obtained and the performance was assessed. The areas under the receiver operating characteristics (ROC) curve, specificity, sensitivity and accuracy with and without the zero value subtraction were calculated. The McNemar test revealed a statistically significant difference for specificity at thresholds D(1), D(2) and D(3) (WDG) and D(1) and D(2) (TWDG) when the zero value subtraction was not performed. Influence of the zero value subtraction on the LFpen performance was observed for approximal caries detection. However, when modified cut-off values were used, the zero value subtraction could be eliminated.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

De Almeida Rodrigues, Jonas; Hug, Isabelle and Lussi, Adrian

ISSN:

0268-8921

Publisher:

Springer London

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

04 Oct 2013 15:02

Last Modified:

12 Sep 2018 10:30

Publisher DOI:

10.1007/s10103-008-0549-z

Related URLs:

PubMed ID:

18309456

Web of Science ID:

000265499300002

BORIS DOI:

10.7892/boris.26813

URI:

https://boris.unibe.ch/id/eprint/26813 (FactScience: 88805)

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