Development of a three‐dimensional printed model from a digital impression of a real patient for aesthetic dentistry undergraduate teaching

Author:

Arroyo‐Bote Sebastiana1ORCID,Bennasar‐Verger Catalina2,Martínez‐Jover Andrés2,Ferragut‐Pina Pablo3,Riutot‐Sbert Pere4,López‐González Ángel Arturo56,Barkvol Pål7

Affiliation:

1. Department of Conservative Dentistry ADEMA School of Dentistry ADEMA Health IUNICS group University of the Balearic Islands Palma Spain

2. Department of Conservative Dentistry ADEMA School of Dentistry University of the Balearic Islands Palma Spain

3. Department of dental prostheses, ADEMA School of Dentistry University of the Balearic Islands Palma Spain

4. Advisory Council for Research ADEMA School of Dentistry ADEMA Health IUNICS group University of the Balearic Islands Palma Spain

5. Department of statistics and research, ADEMA School of Dentistry ADEMA Health IUNICS group University of the Balearic Islands Palma Spain

6. Occupational Risk Prevention Service Balearic Islands Health Service Palma Spain

7. Department of Oral Medicine Faculty of Dentistry University of Oslo Oslo Norway

Abstract

AbstractIntroductionThe acquisition of skills and manual dexterity in aesthetic dentistry in undergraduate teaching requires preclinical practices with simulation that should approximate real clinical situations.ObjectiveWe will present a digital procedure for the creation of three‐dimensional (3D) resin models adapted to the practices of the Aesthetic Dentistry course.Material and methodStereolithography or Standard Tesellation Language (STL) files of a real patient were previously obtained with a 3‐shape intraoral scanner. Using the Exocad computer programme for dental prosthesis design, various modifications were made, such as incisor rotation, surface alterations imitating dysplasias or erosions, the creation of diastemas, or even changes in tooth size. The virtual model was printed in resin for use by students. Once the practices were finished, the students and the teachers evaluated the use of the 3D printed models.ResultsThe result is the typodont model, in which seven laboratory sessions took place: 1‐Restoration of conoid tooth morphology, 2‐Cervical abrasion/ erosion restoration, 3‐Direct Composite Veneer, 4‐Aesthetic correction in a tooth with rotation, 5‐Diastem closure, 6‐Occlusal abrasions/ erosion, and 7‐Maryland bridge. 90.48% of the students evaluated the designed 3D model as the best method for laboratory practice compared to other methods, obtaining a general assessment of 8.3 out of 10.ConclusionThe method used has provided a reproducible standard analog model for direct aesthetic dental restoration practice, with a good assessment by students and teachers.

Publisher

Wiley

Reference34 articles.

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