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A reliability assessment of the basic erosive wear examination and the tooth wear evaluation system 2.0 utilizing intraoral scan data

Author

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  • Maria Lorens
  • Iwona Tomaszewska

Abstract

Objectives: This study assessed the reliability and clinical applicability of two tooth wear screening indices—Basic Erosive Wear Examination (BEWE) and the Tooth Wear Screening module of the Tooth Wear Evaluation System 2.0 (TWES 2.0)—using intraoral scans. Materials and methods: A total of 246 anonymized intraoral scans from adult patients were independently evaluated by two calibrated examiners. Examiner calibration was performed prior to the study using a representative set of intraoral scans. Calibration was repeated until consensus regarding the application of the scoring criteria was achieved before formal data collection. Scores for all sextants were recorded for BEWE and TWES 2.0. Inter-rater agreement was primarily assessed using weighted kappa coefficients, as BEWE and TWES 2.0 are ordinal, numerically coded indices. Wilcoxon signed-rank tests were additionally used to assess systematic directional differences between paired scores. Statistical significance was set at p

Suggested Citation

  • Maria Lorens & Iwona Tomaszewska, 2026. "A reliability assessment of the basic erosive wear examination and the tooth wear evaluation system 2.0 utilizing intraoral scan data," PLOS ONE, Public Library of Science, vol. 21(6), pages 1-14, June.
    • Handle: RePEc:plo:pone00:0351330
    DOI: 10.1371/journal.pone.0351330
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