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Development and validation of new methodologies for teaching preparations in fixed partial prosthesis.

Michelle S S Gomes1, Natália R Rossi1, Eduardo S Uemura1

  • 1Department of Dental Materials and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, São Paulo, Brazil.

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Summary

Dental students face challenges with fixed partial prosthesis (FPP) coronal preparations, particularly reduction amount and inclination. Auxiliary teaching methods like color-coded mannequins and live demonstrations significantly improved visualization and understanding.

Keywords:
dentistryfixed prosthesislearningteachingtechnology in dentistry

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Area of Science:

  • Dental Education
  • Prosthodontics

Background:

  • Students encounter difficulties in comprehending and executing coronal preparations for fixed partial prosthesis (FPP).
  • Key challenges include achieving correct reduction, inclination, and positioning, vital for ideal preparation and biomechanical principles.

Purpose of the Study:

  • To identify primary difficulties faced by dental students in FPP coronal preparation.
  • To propose effective teaching strategies for students and educators.

Main Methods:

  • Surveyed 87 third-year dental students regarding FPP coronal preparation challenges.
  • Developed and validated two teaching aids: a color-coded mannequin and a comparative analysis of didactic methods.

Main Results:

  • A significant portion of students (78.2%) identified the amount of reduction as the main problem.
  • Inclination and angle issues were reported by 50.9% of students.
  • The color-coded mannequin achieved a 91.5% approval rate; live demonstrations were favored (61.8%).

Conclusions:

  • Auxiliary didactic methods, including mannequins and live projections, were well-received by students.
  • These methods enhance visualization of reduction amount and preparation sequence.
  • The study validates the effectiveness of color-coded mannequins and live projections as supplementary teaching resources for FPP.