TY - THES A1 - Kolling, Markus T1 - Validierung eines Fragebogens zur Ermittlung der Qualität und des Lernerfolgs 3D-gedruckter Zähne in der endodontischen Ausbildung T1 - Validation of a questionnaire to assess quality and learning success of 3D-printed teeth in endodontic education N2 - Einleitung Als Alternative zu chirurgischen Maßnahmen stellt eine Wurzelkanalbehandlung eine zahnerhaltende Therapie dar, die nach mehr als sechs Jahren eine Überlebensrate des Zahns von 84% aufweist (Torabinejad, Anderson et al. 2007, Tsesis, Nemkowsky et al. 2010, Zitzmann, Krastl et al. 2010). Eine qualitativ hochwertige Ausbildung legt den Grundstein, um eine suffiziente und dauerhafte Wurzelkanalbehandlung durchzuführen, weshalb ihr eine besondere Aufmerksamkeit zukommt (Lin, Rosenberg et al. 2005). In der studentischen Ausbildung von Fertigkeiten für die Wurzelkanalbehandlung haben sich zur Simulation möglichst realer Patientensituationen verschiedene Übungsmodelle etabliert, die von Plexiglasblöcken bis hin zu extrahierten echten Zähnen reichen (Perry, Bridges et al. 2015). Dank der Möglichkeiten des 3D-Drucks werden neue, 3D-gedruckte Zähne als Simulationsmodell in der Ausbildung von Studierenden der Zahnmedizin eingesetzt (Höhne and Schmitter 2019, Reymus, Fotiadou et al. 2019). Zur Ermittlung der Qualität und des Lernerfolgs anhand von 3D-gedruckten Zähnen in der endodontischen Ausbildung wurde ein Fragebogen entwickelt und validiert sowie der verwendete 3D-gedruckte Zahn evaluiert. Material und Methoden Zur Beantwortung der Fragestellungen fand eine Pilotierungsstudie im Wintersemester 2017/18 mit 41 Studierenden und eine Validierungsstudie im Sommersemester 2018 und Wintersemester 2018/19 mit 88 Studierenden im sechsten Fachsemester statt. In beiden Kohorten wurde die Wurzelkanalbehandlung anhand von Plexiglasblöcken, extrahierten echten Zähnen sowie mit 3D-gedruckten Zähnen geübt. Abschließend wurden die Übungsmodelle mittels Fragebogen evaluiert. Der mit einem Expertenteam erstellte Fragebogen erfasste in acht unterschiedlichen Dimensionen sowohl Personendaten, Voraussetzungen, Eigenschaften im Vergleich von 3D-gedrucktem Zahn und Plexiglasblock zu echtem Zahn, subjektives Lernergebnis, Übungsmöglichkeiten, ... N2 - Introduction With a tooth survival rate of 84% after a six-year period, a root-canal treatment represents a conservative therapeutic alternative to surgical interventions (Torabinejad, Anderson et al. 2007, Tsesis, Nemkowsky et al. 2010, Zitzmann, Krastl et al. 2010). Attention should be paid to a high-quality education in particular, as it lays the foundation to perform a sufficient and long-lasting root-canal treatment (Lin, Rosenberg et al. 2005). Different training models in students’ training of skills to perform a root-canal treatment have been established in order to simulate a realistic patient situation, ranging from resin blocks to extracted teeth (Perry, Bridges et al. 2015). Thanks to the possibility of 3D-printing, new 3D-printed teeth are being used as a simulation model in training of dental students (Höhne and Schmitter 2019, Reymus, Fotiadou et al. 2019). To determine the quality and learning success with 3D-printed teeth in endodontic training, a questionnaire was developed and validated, and the utilized 3D-printed tooth was evaluated. Materials and Methods In order to answer the central research questions of this study, a pilot study took place in the winter term of 2017/18 with 41 students, and a validation study took place in the summer term of 2018 and in the winter term 2018/19 with 88 students in their respective sixth semester. The root-canal treatment in both cohorts was practiced with resin blocks, extracted real teeth and 3D-printed teeth. Finally, the training models were evaluated using a questionnaire. The questionnaire was developed with a team of experts and included eight different categories, comprising personal data, conditions for the course, comparison of characteristics between a 3D-printed tooth, a resin block and an extracted tooth, estimated learning outcome, effects of training, ... KW - Medizinische Ausbildung KW - Endodontie KW - Wurzelkanalbehandlung KW - 3D-Druck KW - Fragebogen KW - Zahnmedizinische Ausbildung KW - 3D-gedruckter Zahn KW - Fragebogenvalidierung KW - Lehrforschung KW - dental education KW - endodontics KW - three-dimensional printing KW - 3D-printed tooth KW - root-canal treatment Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-231882 ER - TY - JOUR A1 - Kolling, Markus A1 - Backhaus, Joy A1 - Hofmann, Norbert A1 - Keß, Stefan A1 - Krastl, Gabriel A1 - Soliman, Sebastian A1 - König, Sarah T1 - Students’ perception of three-dimensionally printed teeth in endodontic training JF - European Journal of Dental Education N2 - Introduction In endodontic education, there is a need for thorough training prior to students embarking on clinical treatment. The aim of this study was to use three-dimensional printing technology to create a new model and to compare its suitability for training purposes with resin blocks and extracted teeth. Materials and Methods Multi-jet-modelling (MJM) produced the 3D model replicating a common difficulty in root-canal morphology. An evaluation study comprising 88 students was run in the sixth semester (summer 2018 and winter 2018/2019). A new questionnaire assessed students’ perception of training models and educational environment. Welch's t-test analysed significant differences. Results The most pronounced differences between models were noted when rating material hardness, radiopacity, root-canal configuration and suitability for practising. Students estimated their learning outcome as greater with 3D-printed teeth compared to resin blocks. Three-dimensionally printed teeth received significantly lower ratings with regard to enthusiasm, the learning of fine motor skills and spatial awareness, when compared to human teeth (p ≤ .001). However, 3D-printed teeth were appreciated for additional benefits, such as their cleanliness, availability and standardisation of training opportunities with complex root-canal configurations. Conclusion Students preferred extracted human teeth to 3D-printed teeth with respect to their physical characteristics and training experience. However, educational advantages may compensate for the shortcomings. The new questionnaire proved both adequate and accurate to assess the models and educational environment in endodontic training. The new 3D-printed teeth enhanced the learning opportunities. KW - 3D-printed tooth KW - three-dimensional printing KW - teaching materials KW - root-canal treatment KW - endodontics KW - dental education Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-318676 VL - 26 IS - 4 SP - 653 EP - 661 ER -