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TY - THES AU - Heinen, Katharina Svenja TI - Mehrwert eines digitalen Analysesystems für die Bewertung von Zahnpräparationen für eine vollverblendete Krone in der vorklinischen Ausbildung PB - Rheinisch-Westfälische Technische Hochschule Aachen VL - Dissertation CY - Aachen M1 - RWTH-2026-00326 SP - 1 Online-Ressource : Illustrationen PY - 2025 N1 - Veröffentlicht auf dem Publikationsserver der RWTH Aachen University 2026 N1 - Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2025 AB - Objective: This study examines the added value of a digital analysis software for evaluating student crown preparations compared to conventional visual assessment using a checklist.Materials and Methods: Twenty typodont teeth prepared by students were assessed by twelve dentists. In the first session, assessments were conducted conventionally using a checklist with twelve criteria. After calibrating the examiners and training them to use the analysis software, in the second session, part of the preparations was re-evaluated visually (n=10), while another part (n=5) was evaluated using the software “prepCheck” (Sirona). Statistical analyses focused on time required as well as inter- and intra-rater reliability.Results: The results show that the conventional method with a checklist demonstrated high inter-rater reliability (correlation coefficient 0.88), yet revealed fluctuations in intra-rater reliability. Assessment of individual parameters, such as proximal distance, was more consistent, while more complex criteria, such as occlusal and circumferential reduction, showed significant variability. Using “prepCheck,” five of the twelve criteria were rated significantly higher, with a generally lower standard deviation. However, the time required for prepCheck was approximately seven times higher. Conclusions: Despite the checklist, the conventional method often lacks consistent intra-rater reliability, which can lead to subjective evaluations in preclinical courses. However, the high inter-rater reliability suggests that calibrations and checklists help foster objectivity. The prepCheck analysis software resulted in more objective and consistent evaluations, with less stringent judgments and reduced variability, suggesting greater accuracy in assessment. Despite the high time investment, using such software in dental education is promising, particularly for promoting digital competence and consistent performance evaluation. LB - PUB:(DE-HGF)11 DO - DOI:10.18154/RWTH-2026-00326 UR - https://publications.rwth-aachen.de/record/1024771 ER -