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A novel LED-based device for occlusal caries detection

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Abstract

The aim of this in-vitro study was to compare the performance of laser-based (DIAGNOdent, KaVo, Biberach, Germany) and LED-based (Midwest Caries I.D., DENTSPLY Professional, New York, USA) caries detectors in the detection of occlusal caries in permanent molars. The study consisted of 129 visually sound or non-cavitated pits or fissures in 82 extracted permanent human molar teeth. Two trained examiners used the laser-based and LED-based caries detectors to examine the fissures for caries. The teeth were then sectioned at the surfaces suspected of containing occlusal caries and histologically evaluated using stereomicroscopy as a gold standard. Inter-examiner reliability of the caries detector examination was assessed using Cohen’s Kappa statistics. The sensitivity, specificity, and accuracy in diagnosing occlusal caries using the two devices were calculated according to appropriate cut-off scores. Receiver operating characteristic (ROC) curves were also determined to compare the diagnostic performance of the devices in occlusal caries diagnosis. The cut-off level of significance was taken as p = 0.005. Cohen’s Kappa showed substantial agreement for the laser-based caries detector (0.74), and almost perfect agreement for the LED-based (0.89) caries detector. The specificity of the laser-based device varied from 0.49 to 0.97 at T1 and T2. Its sensitivity varied from 0.33 to 0.65 at T1 and T2. The specificity of the LED-based device varied from 0.48 to 0.56 at T1 and T2. Its sensitivity varied from 0.65 to 0.84 at T1 and from 0.80 to 0.84 at T2. Taking the limitations of the current study into consideration, the DIAGNOdent laser pen was more accurate in determining when teeth were free of occlusal caries than was the Midwest Caries I.D. LED-based device, although the Midwest Caries I.D. device more often revealed the presence of occlusal caries than did the DIAGNOdent pen.

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Authors and Affiliations

  1. Department of Oral Diagnosis and Radiology, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkey

    Ali Murat Aktan & Mehmet Ertuğrul Çiftçi

  2. Department of Operative Dentistry, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkey

    Mehmet Ata Cebe

  3. Department of Operative Dentistry, Gaziantep University, Gaziantep, Turkey

    Emine Şirin Karaarslan

Authors
  1. Ali Murat Aktan
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  2. Mehmet Ata Cebe
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  3. Mehmet Ertuğrul Çiftçi
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  4. Emine Şirin Karaarslan
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Correspondence to Ali Murat Aktan.

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Aktan, A.M., Cebe, M.A., Çiftçi, M.E. et al. A novel LED-based device for occlusal caries detection. Lasers Med Sci 27, 1157–1163 (2012). https://doi.org/10.1007/s10103-011-1020-0

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  • DOI: https://doi.org/10.1007/s10103-011-1020-0

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