title: A clinical study of caries diagnosis with a laser fluorescence system.
abstract: BACKGROUND
  The authors conducted an in vivo study to compare a laser fluorescence system with a visual system for occlusal caries diagnosis in children's primary and permanent molars.
  
  
  METHODS
  The authors selected for evaluation 320 untreated, cavity-free primary and permanent molars in healthy children aged 6 through 14 years. Two of the authors conducted the laser fluorescence evaluation. Another of the authors completed the clinical evaluation. The kappa value was 0.68. The authors compared sensitivity, specificity, predictive values, odds ratio and receiver operating characteristic (ROC) curves for the laser fluorescence system.
  
  
  RESULTS
  For the whole sample, the sensitivity and specificity of the laser fluorescence system were 0.79 and 0.87, respectively. The positive and negative odds ratios for the whole sample were 6.33 and 0.23. The positive and negative predictive values for the whole sample were 33.9 percent and 98.1 percent. The value of the area beneath the ROC curve (AUC) was 0.92 for the whole sample.
  
  
  CONCLUSIONS
  The laser fluorescence system was more precise than visual evaluation in identifying lesions without cavities and healthy surfaces in primary and permanent molars.
  
  
  CONCLUSIONS
  In daily practice, dentists can consider the laser fluorescence system a complementary tool in the visual exploration of occlusal surfaces of primary molars and permanent first molars.
authors.affiliation: Dental Care Program for Children, Department of Prevention, Pediatric Dentistry and Orthodontics, Complutense University of Madrid, Madrid, Spain. barberia@odon.ucm.es
authors.forename: Elena
authors.initials: E
authors.lastname: Barbería
authors.forename: Myriam
authors.initials: M
authors.lastname: Maroto
authors.forename: Marcela
authors.initials: M
authors.lastname: Arenas
authors.forename: Cristina Cardoso
authors.initials: CC
authors.lastname: Silva
mesh_terms: D000293:Adolescent; D019540:Area Under Curve; D002648:Child; D003731:Dental Caries / Q000175:diagnosis*; D003732:Dental Caries Activity Tests / Q000379:methods*; D019229:Dentition, Permanent; D005260:Female; D005453:Fluorescence; D006801:Humans; D007834:Lasers; D008297:Male; D008963:Molar / Q000473:pathology; D016017:Odds Ratio; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014094:Tooth, Deciduous / Q000473:pathology