title: An in vivo comparison of two diagnostic methods in secondary caries detection.
abstract: OBJECTIVE
  The aim of this study was to compare the level of agreement between four operators with different levels of experience for two methods of detecting secondary enamel and dentin carious lesions in composite restored teeth.
  
  
  METHODS
  Sixty teeth of 40 patients with with secondary carious lesions in the composite resin were selected. The teeth were examined by two methods; visual inspection and a laser fluorescence device (DIAGNO dent pen 2190) by four operators including an undergraduate student, a dentist with 5 years of clinical experience, a general dentist with 12 years of clinical experience and an oral and maxillofacial radiologist. Cohen's kappa statistic was applied in order to assess the agreement between the diagnoses performed by the four operators with each diagnostic method.
  
  
  RESULTS
  The diagnosis performed by different operators achieved an excellent agreement with high ICC.
  
  
  CONCLUSIONS
  DIAGNOdent can be a useful device for secondary caries detection in posterior teeth as an adjunct to visual examination.
authors.affiliation: PhD Candidate, Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Kazem Saber
authors.initials: KS
authors.lastname: Hamishaki
authors.affiliation: PhD Candidate, Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Nasim
authors.initials: N
authors.lastname: Chiniforush
authors.affiliation: Associate Professor, Prosthodontic Department, Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Abbas
authors.initials: A
authors.lastname: Monzavi
authors.affiliation: PhD Candidate of Epidemiology, Dental Research Center Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mohammad Javad
authors.initials: MJ
authors.lastname: Khazarazifard
keywords: DIAGNOdent; Secondary Caries; Visual Examination