Development and Evaluation of an Endodontic Simulation Model for Dental Students

131

During the last few years, the curriculum of many dentistry schools in Germany has been reorganised. Two key aspects of the applied changes are the integration of up-to-date teaching methods and the promotion of interdisciplinarity. To support these efforts, an approach to fabricating individualised simulation models for hands-on courses employing 3D printing is presented. The models are based on real patients, thus providing students a more realistic preparation for real clinical situations. As a wide variety of dental procedures can be implemented, the simulation models can also contribute to a more interdisciplinary dental education. The data used for the construction of the models were acquired by 3D surface scanning. The data were further processed with 3D modelling software. Afterwards, the models were fabricated by 3D printing with the PolyJet technique. Three models serve as examples: a prosthodontic model for training veneer preparation, a conservative model for practicing dental bonding and an interdisciplinary model featuring carious teeth and an insufficient crown. The third model was evaluated in a hands-on course with 22 fourth-year dental students. The students answered a questionnaire and gave their personal opinion. Whilst the concept of the model received very positive feedback, some aspects of the implementation were criticised. We discuss these observations and suggest ways for further improvement.

Section: Discussionmentioning

confidence: 99%

“…Wolgin et al developed and evaluated an endodontic simulation model for practicing the determination of the working length radiographically and endodontically. The model was created by embedding extracted human teeth in a self‐cured resin matrix.…”

Section: Introductionmentioning

confidence: 99%

3D printed simulation models based on real patient situations for hands‐on practice

Kröger

Dekiff

Dirksen

2016

131

“…With this system, a student might practise a clinical procedure several times without performing an intervention on a patient . Simulation models have significantly influenced learning in several dental areas, including endodontics, periodontics, dental hygiene and operative dentistry .…”

Section: Introductionmentioning

confidence: 99%

Positive influence of a dental anaesthesia simulation model on the perception of learning by Mexican dental students

Hernández-Rivas

Komabayashi

et al. 2016

“…Previous studies aimed to investigate the perceptions of students concerning innovative 3D printed models and haptic or virtual models . This study is the first one to compare 3D printed models to series models from a student's point of view.…”

Section: Discussionmentioning

confidence: 99%

“…Although industrials have tried to propose models with simulated caries, some of the resulting situations are not realistic, and therefore, some authors have developed their own simulation models for clinical training. Such work has been carried out in various dental fields: endodontic, using natural teeth embedded in resin, implantology or dental surgery . Anderson et al demonstrated all the benefit of 3D printing technology in the field of endodontics, from clinical to educational use .…”

Section: Introductionmentioning

confidence: 99%

Comparison of student’s perceptions between 3D printed models versus series models in paediatric dentistry hands‐on session

Marty

Broutin

Vergnes

et al. 2018

Introduction: Dental education emphasises the acquisition of technical skills. Recent advances in 3D printing technologies have enabled the emergence of new educational tools usable in hands-on work sessions. The possibility to print 3D models from CT scans of patients is now available to dental practitioners. The aim of this study was to develop and evaluate a 3D printed model for paediatric dentistry training and compare it to the reference model used in our faculty.Materials and Method: 3D models were obtained by modifying and printing the CT scan of a young patient using the Voco® Solflex 350 3D® printer and Voco® V-print resin. Thirty-four students were asked to perform a pulpotomy and preparation for a stainless steel paediatric crown on tooth 85 on both the 3D printed model and the industrial model (Frasaco®), and then to answer a questionnaire. The data were analysed using R software.Result: Both models obtained high scores. The learning potential and its applicability to clinical practice showed no statistically significant difference. Although the colour and the simulation of the proximal area disturbed the students (P = 0.009), the 3D models were seen as a good idea (P = 0.012). When it came to model design, the students appreciated the simulation of caries on 3D models (P = 0.0001) and considered the use 3D of models as a more realistic experience (P = 0.017). Discussion:Although this study has some limitations (number of participants, choice of the models to be compared), it constitutes the first attempt to compare students' perception of 3D and series models. It shows that 3D technology makes it possible to obtain models of similar quality while offering a more realistic experience. Conclusion:There are still many ways in which these models could be improved. For example, modifying the quality of resins could improve the milling sensation, and the design could be improved to achieve better contact points. Nevertheless, these 3D models offer the possibility to give the patient a more central place in the education of future practitioners. K E Y W O R D S 3D printing, hands-on models | 69 MARTY eT Al. How to cite this article: Marty M, Broutin A, Vergnes J-N, Vaysse F. Comparison of student's perceptions between 3D printed models versus series models in paediatric dentistry hands-on session. Eur J Dent Educ. 2019;23:68-72. https://doi.