title: Performance of undergraduate dental students on ICDAS clinical caries detection after different learning strategies.
abstract: OBJECTIVE
  This study aimed to evaluate the effect of a digital learning tool on undergraduate dental students' performance in detecting dental caries using ICDAS.
  
  
  METHODS
  An experimental digital learning tool (DLT) was created using digital photographs of sound and carious teeth. Thirty-nine students were divided into three groups (n = 13) and each assessed 12 randomly allocated patients before and after learning strategies: G1, ICDAS e-learning program; G2, ICDAS e-learning program plus DLT; G3, no learning strategy. Students (n = 32) reassessed patients 2 weeks after training.
  
  
  RESULTS
  Comparing before and after the learning strategies, any difference in the values of specificity and area under the ROC curve for all groups was found. Sensitivity was statistically significantly higher for G1 and G2. Comparing the groups, G2 showed a significant increase in sensitivity at the D2 and D3 thresholds. Spearman's correlations with the gold standard before and after the learning strategy were 0.60 and 0.61 for G1, 0.57 and 0.63 for G2, and 0.54 and 0.54 for G3, respectively. The Wilcoxon test showed a statistically significant difference between the values obtained before and after learning strategies for G1 and G2.
  
  
  CONCLUSIONS
  Use of the DLT after the ICDAS e-learning program tended to increase the sensitivity of ICDAS used by undergraduate dental students. The DLT appeared to improve dental students' ability to use ICDAS.
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: P B
authors.initials: PB
authors.lastname: Luz
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: C H
authors.initials: CH
authors.lastname: Stringhini
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: B R
authors.initials: BR
authors.lastname: Otto
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: A L F
authors.initials: AL
authors.lastname: Port
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: V
authors.initials: V
authors.lastname: Zaleski
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: R S
authors.initials: RS
authors.lastname: Oliveira
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: J T
authors.initials: JT
authors.lastname: Pereira
authors.affiliation: Department of Preventive, Restorative and Pediatric Dentistry, School of Dental Medicine, University of Bern, Bern, Switzerland.
authors.forename: A
authors.initials: A
authors.lastname: Lussi
authors.affiliation: Department of Pediatric Dentistry, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: J A
authors.initials: JA
authors.lastname: Rodrigues
mesh_terms: D002648:Child; D003194:Computer-Assisted Instruction / Q000379:methods / Q000592:standards; D003731:Dental Caries / Q000175:diagnosis*; D003936:Diagnosis, Computer-Assisted / Q000379:methods / Q000592:standards; D004497:Education, Dental; D004504:Education, Medical, Undergraduate; D005260:Female; D006801:Humans; D008297:Male; D012372:ROC Curve; D015203:Reproducibility of Results; D012984:Software; D013335:Students, Dental; D064878:Web Browser
keywords: ICDAS; caries detection; dental caries; visual examination