Authors: Heinrich-Weltzien, Roswitha¹; Kühnisch, Jan²; Ifland, Susanne¹; Tranæus, Sofia³; Angmar-Månsson, Birgit³; Stößer, Lutz¹

Source: European Journal of Oral Sciences, Volume 113, Number 6, December 2005 , pp. 494-498(5)

Publisher: Wiley-Blackwell

Abstract:

Heinrich-Weltzien R, Kühnisch J, Ifland S, Tranæus S, Angmar-Månsson B, Stößer L. Detection of initial caries lesions on smooth surfaces by quantitative light-induced fluorescence and visual examination: anin vivo comparison. Eur J Oral Sci 2005; 113: 494–498. © Eur J Oral Sci, 2005

The aim of this clinical study was to compare the outcome of quantitative laser/light-induced fluorescence (QLF) and visual inspection (VI) for the detection of initial caries lesions on all maxillary and mandibular smooth surfaces in caries-risk adolescents. The subjects were 34 students, mean age 15 yr. A total of 879 buccal and 882 lingual surfaces were air-dried and visually examined at a magnification of ×3.5. Fluorescence images of each smooth surface were captured with QLF\clin equipment, and QLF software 2.00 was used to display, store, and analyse the images. Fluorescence loss (ΔF; %) and area of the lesion (A; mm²), and fluorescence loss integrated over the lesion area (ΔQ; ΔF × A; % × mm²) , were determined. The presence or absence of initial caries lesions was scored using both VI and QLF. A total of 87.2% of all smooth surfaces were scored as sound or initially carious when assessed by VI+QLF in combination: 4.9% were detected by VI alone and 7.9% by QLF alone. The parameters ΔF, A, and ΔQ differed significantly between lesions registered with VI+QLF and QLF alone. It was concluded that (i) QLF seems to be a sensitive method that is suitable for the detection of visually undetected initial caries lesions; and (ii) that the clinical use of QLF is limited by several confounding factors in caries-risk adolescents.

Keywords: caries-risk adolescents; clinical study; initial caries lesion; QLF; visual inspection

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1600-0722.2005.00255.x

Affiliations: 1: Department of Preventive Dentistry, University of Jena, Jena, Germany 2: Department of Conservative Dentistry and Periodontology, Ludwig-Maximilians-University of Munich, Munich, Germany 3: Department of Cariology and Endodontology, Institute of Odontology, Karolinska Institutet, Huddinge, Sweden

Publication date: 2005-12-01

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