Introduction of a new teaching concept for crown preparation with 3D printed teeth

Please always quote using this URN: urn:nbn:de:bvb:20-opus-218133
  • Introduction For both students and teachers, it is challenging to learn and teach a correct crown preparation. The purpose of this study was the design, feasibility and evaluation of a 3D printed tooth model with internal preparation for dental education in crown preparation and to analyse the quality of the prepared printed teeth in comparison with prepared standard model teeth. Materials and methods A printable tooth was designed and printed by a stereolithographic printer. 38 fourth‐year dental students in the first clinical course inIntroduction For both students and teachers, it is challenging to learn and teach a correct crown preparation. The purpose of this study was the design, feasibility and evaluation of a 3D printed tooth model with internal preparation for dental education in crown preparation and to analyse the quality of the prepared printed teeth in comparison with prepared standard model teeth. Materials and methods A printable tooth was designed and printed by a stereolithographic printer. 38 fourth‐year dental students in the first clinical course in prosthodontics were trained in a voluntary course using printed teeth. Different aspects of the printed tooth were evaluated by a questionnaire using German school grades (1 best to 5 worst). The quality of the preparation with the printed teeth and standard training teeth was also rated in an evaluation form done by an expert group consisting of five experienced dentists. Results The workflow was feasible and cost‐effective for the production of the teeth. The overall rating of the printed tooth was Ø 2.0 ± 0.34 in the questionnaire completed by the students. The students rated the printed tooth model (Ø 2.1 ± 0.85) as significantly better than the standard model tooth (Ø 3.3 ± 0.77; P = .000). The students reported great benefits in the use of this model tooth, for example valuable replacement of a standard model and real teeth, direct control of material loss. The quality of the preparation was evaluated by the expert group as significantly better with an overall mean grade of Ø 2.6 ± 0.37 for the printed teeth compared to Ø 2.9 ± 0.42 for the standard model teeth (P = .000). Conclusions The feasibility of this teaching concept was confirmed. The students favoured to work on the innovative 3D‐teeth with internal preparation, emphasising the usefulness of this technique in dental education. The expert group confirmed also the significant training effect of this tooth model in contrast to a standard model tooth.show moreshow less

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Metadaten
Author: Christian HöhneORCiD, Raphael Schwarzbauer, Marc Schmitter
URN:urn:nbn:de:bvb:20-opus-218133
Document Type:Journal article
Faculties:Medizinische Fakultät / Poliklinik für Zahnärztliche Prothetik
Language:English
Parent Title (English):European Journal of Dental Education
Year of Completion:2020
Volume:24
Issue:3
First Page:526
Last Page:534
Source:European Journal of Dental Education 2020, 24(3):526–534. DOI: 10.1111/eje.12532
DOI:https://doi.org/10.1111/eje.12532
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Tag:3D printing; additive manufacturing; clinical practice; dental education; printed tooth; student training
Release Date:2021/08/20
Licence (German):License LogoCC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International