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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

June 2014
Volume 45 , Issue 6

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Caries detection and diagnostics with near-infrared light transillumination: Clinical experiences

Söchtig, Friederike / Hickel, Reinhard / Kühnisch, Jan

Pages: 531-538
PMID: 24618570
DOI: 10.3290/j.qi.a31533

Objective: The aim of this paper was to present the function and potential of diagnosing caries lesions using a recently introduced near-infrared (NIR) transillumination technique (DIAGNOcam, KaVo).
Method and Materials: The study included 130 adolescents and adults with complete permanent dentition (age > 12). All patients underwent visual examination and, if necessary, bitewing radiographs. Proximal and occlusal surfaces, which had not yet been restored, were photographed by a NIR transillumination camera system using light with a wavelength of 780 nm rather than ionizing radiation. Of the study patients, 85 showed 127 proximal dentin caries lesions that were treated operatively.
Results: A cross table shows the correlation of radiography and NIR transillumination. Based on our practical clinical experiences to date, a possible classifi cation of diagnosis is introduced. The main result of our study was that NIR light was able to visualize caries lesions on proximal and occlusal surfaces.
Conclusion: The study suggests that NIR transillumination is a method that may help to avoid bitewing radiographs for diagnosis of caries in everyday clinical practice.

Keywords: caries detection, caries diagnostics, DIAGNOcam, near-infrared light, photo-optics, proximal caries

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