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3D printed teeth with adhesive bridge preparation guide.

Michael Del Hougne1, Greta Behr2, Marc Schmitter2

  • 1Department of Prosthodontics, University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany. hougne_m@ukw.de.

Scientific Reports
|September 24, 2024
PubMed
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In Vitro Biofilm Formation on 3D-Printed, Milled, and Conventionally Manufactured Denture Base Resins.

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3D printed teeth for bridge preparation training: development and assessment in dental education.

BMC medical education·2025

3D printed teeth with integrated preparation guides offer a feasible and cost-effective method for dental education. This innovative teaching tool allows students to independently learn complex procedures like adhesive bridge preparation.

Area of Science:

  • Dental Education
  • Biomaterials Engineering
  • Prosthodontics

Background:

  • Traditional dental education relies on traditional methods for teaching preparation techniques.
  • There is a need for innovative tools to enhance student understanding of complex procedures like adhesive bridge preparation.

Purpose of the Study:

  • To design and assess the feasibility of a 3D printed tooth with an integrated adhesive bridge preparation guide.
  • To evaluate this novel teaching method's effectiveness among dental students.

Main Methods:

  • A stereolithographic printer was used to create a two-layered 3D printed tooth model with a color-coded adhesive bridge preparation guide.
  • 42 fourth-year dental students participated in a voluntary training course using the 3D printed teeth.
  • Student feedback was collected via a questionnaire using a German grading scale (1=best, 6=worst).
Keywords:
3D printingAdditive manufacturingAdhesive bridge preparationClinical practiceDental educationPrinted tooth

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Main Results:

  • The production of the 3D printed teeth was found to be feasible and inexpensive.
  • Students rated the 3D printed teeth favorably, with an average score of 1.9 ± 0.2.
  • Students positively evaluated the teaching method, highlighting its role in visualization and self-assessment.

Conclusions:

  • The 3D printed tooth with an integrated preparation guide is a viable and cost-effective teaching concept for dental education.
  • This method effectively supports students in learning and independently mastering adhesive bridge preparation techniques.
  • The color-coded guide enhances visualization and self-directed learning of new preparation forms.