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      3D-printed tooth for caries excavation

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          Abstract

          Background

          To date, no suitable model tooth has been available for all standard restorative and prosthodontic procedures. To fill this gap, a realistic multilayer tooth with enamel, dentin, integrated caries, pulp, and electrometric and X-ray imaging abilities was developed. The aim of this study was to test the printed tooth while focusing on caries excavation and pulp capping.

          Methods

          Based on micro-CT data, a tooth was designed and produced via 3D printing. A total of 396 teeth were tested and evaluated by 66 fourth- and fifth-year students experienced in caries excavation at standard typodonts, extracted teeth and patients. They excavated the caries and capped the pulp on six teeth and rated them in a questionnaire.

          Results

          Compared with natural teeth, the printed teeth were generally rated positively and significantly better in all criteria than typodonts used previously ( p < .001). They were rated as a suitable training option (Ø 2.3 ± 0.9) with fair examination conditions (Ø 2.1 ± 0.8) and easy to use (Ø 2.0 ± 0.8). Subjective learning success was also significantly greater (Ø 2.3 ± 0.9) than that of standard typodonts (Ø 3.2 ± 1.1) ( p < .001). In general, the students desired more exercises with 3D-printed teeth for their studies (Ø 1.8 ± 0.8).

          Conclusions

          Multilayered 3D-printed teeth were successfully tested and can improve and extend the teaching methods used for caries excavation and pulp capping. Its other abilities will be tested in subsequent studies.

          Year of the Study

          2023.

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          Most cited references23

          • Record: found
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          The micro-hardness of enamel and dentin.

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            Accuracy of orthodontic models prototyped for clear aligners therapy: A 3D imaging analysis comparing different market segments 3D printing protocols.

            This study aimed to evaluate the accuracy of orthodontic models for the production of clear aligners generated with four 3D printers featuring different technologies and belonging to different market segments.
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              The fracture behaviour of dental enamel

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                Author and article information

                Contributors
                hoehne_c@ukw.de
                Journal
                BMC Med Educ
                BMC Med Educ
                BMC Medical Education
                BioMed Central (London )
                1472-6920
                31 October 2024
                31 October 2024
                2024
                : 24
                : 1243
                Affiliations
                Department of Prosthodontics, University of Würzburg, ( https://ror.org/00fbnyb24) Pleicherwall 2, 97070 Würzburg, Germany
                Article
                6230
                10.1186/s12909-024-06230-3
                11529318
                39482738
                219d7c37-8559-4657-82e6-f108b4667149
                © The Author(s) 2024

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

                History
                : 10 July 2024
                : 21 October 2024
                Funding
                Funded by: Universitätsklinikum Würzburg (8913)
                Categories
                Research
                Custom metadata
                © BioMed Central Ltd., part of Springer Nature 2024

                Education
                educational technology,patient simulation,clinical skills,printing,three-dimensional,prosthodontic,tooth preparation,dental caries,dental pulp capping,root canal therapy

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