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Related Experiment Video

Updated: May 25, 2026

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Evaluation of a complete denture trial method applying rapid prototyping.

Masanao Inokoshi1, Manabu Kanazawa, Shunsuke Minakuchi

  • 1Complete Denture Prosthodontics, Department of Oral Masticatory Function Rehabilitation, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan. m.kanazawa.ore@tmd.ac.jp

Dental Materials Journal
|January 27, 2012
PubMed
Summary

A new rapid prototyping (RP) method for complete denture trials shows promise, though conventional methods currently offer superior esthetics and stability. Further refinements are needed for this innovative dental technique.

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Area of Science:

  • Dentistry
  • Biomaterials Engineering
  • Digital Fabrication

Background:

  • Complete dentures are crucial for restoring function and esthetics in edentulous patients.
  • Traditional denture fabrication involves multiple manual steps, which can be time-consuming and prone to inaccuracies.

Purpose of the Study:

  • To compare a novel rapid prototyping (RP) based trial method for complete dentures against the conventional approach.
  • To evaluate prosthodontist and patient satisfaction with both fabrication methods.

Main Methods:

  • Wax dentures were fabricated for 10 edentulous patients and scanned using cone-beam CT.
  • Three-dimensional (3D) denture images were created using computer-aided design (CAD) software, enabling multiple artificial tooth arrangements.
  • Trial dentures were fabricated using RP, and a comparative try-in was performed by two prosthodontists.

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Main Results:

  • Prosthodontists rated esthetics and stability significantly higher for the conventional method.
  • Chair time was significantly longer for the RP method compared to the conventional method.
  • Patient and prosthodontist satisfaction levels were compared using the Wilcoxon signed-rank test.

Conclusions:

  • The rapid prototyping (RP) method for complete denture trials is a promising innovation in digital dentistry.
  • While current RP methods require further improvements in esthetics and stability, they offer potential benefits.
  • This study highlights the need for continued research and development in advanced digital fabrication techniques for prosthodontics.