Ona Rius‐Bonet, Paula Roca‐Obis, Carla Zamora‐Olave, Eva Willaert, Jordi Martinez‐Gomis

Diagnostic accuracy of clinical signs to detect erosive tooth wear in its early phase

  • General Dentistry

AbstractBackgroundAgreement exists about most of the clinical features of erosive tooth wear, though no evidence supports their validity in diagnosing the condition.ObjectiveThis study aimed to determine the accuracy of clinical signs for diagnosing erosive tooth wear in a young adult general population.MethodsWe conducted a cross‐sectional study of dental students. In the first session, two examiners independently determined the presence of erosive tooth wear based on glazed enamel surfaces, morphological changes on non‐occlusal surfaces, flattening of convex areas, or any type of concavity. In the second session, one examiner recorded the presence of clinical signs according to the Tooth Wear Evaluation System. The diagnostic accuracy of each clinical sign, both alone and combined, was assessed by calculating their sensitivity and specificity for detecting erosive tooth wear and performing multivariate logistic regression models.ResultsOf the 147 participants (78 women and 69 men; median age, 22 years) we included, 76.2% had erosive tooth wear. The single clinical signs with greatest balance between the sensitivity and specificity were ‘convex areas flatten’ (63% and 71%, respectively) and ‘dull surface’ (47% and 89%, respectively). Multivariate logistic regression revealed that ‘preservation of the enamel cuff’ (odds ratio, 22) and the combination of ‘smooth silky shining, silky glazed appearance, and dull surface’ (odds ratio, 68) had the best predictive values.ConclusionsThe most accurate clinical signs for detecting early erosive tooth wear were dull surface, flattened convex areas and preservation of the enamel cuff.

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