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Performance of resin materials for temporary fixed denture prostheses.

Sebastian Hahnel1, Stephanie Krifka2, Michael Behr2

  • 1Department of Prosthodontics and Materials Science, University of Leipzig.

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|April 2, 2019
PubMed
Summary

Two resin materials for fixed interim restorations showed similar handling and clinical performance, despite minor filler differences. Fractures occurred in 13% of restorations, indicating material limitations for durable provisional prosthetics.

Keywords:
compositecrownfixed dental prosthesesfixed interim restorationresin

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Area of Science:

  • Dental Materials Science
  • Prosthodontics
  • Biomaterials Engineering

Background:

  • Fixed interim restorations are crucial for maintaining function and aesthetics during prosthetic treatment.
  • Evaluating the clinical performance and handling of available resin materials is essential for optimal patient outcomes.
  • Variations in filler composition can influence the properties and longevity of dental restorative materials.

Purpose of the Study:

  • To compare the handling properties and clinical performance of two commercially available resin materials for fixed interim restorations.
  • To assess the impact of slight differences in filler composition on material behavior and clinical success.
  • To provide data for clinicians selecting materials for provisional prosthetic fabrication.

Main Methods:

  • Two resin materials with differing filler compositions were used to fabricate fixed interim restorations in a dental university setting.
  • Dentists and students evaluated handling properties via questionnaires.
  • Calibrated examiners assessed clinical performance using modified US Public Health Service criteria.
  • Eighty-two restorations (crowns, prostheses) were analyzed after a mean service period of 44.5 days.

Main Results:

  • No significant differences were found in handling properties between the two resin materials, except for surface characteristics.
  • Clinical performance ratings showed no significant differences between the materials.
  • Fracture failures were observed in 13% of the fabricated interim restorations.

Conclusions:

  • Slight variations in filler composition between commercial resin materials result in minimal differences in handling and clinical performance.
  • The incidence of fracture failures highlights potential limitations in the durability of these materials for interim restorations.
  • Further research may be needed to optimize resin formulations for enhanced longevity and reduced failure rates in fixed interim prosthetics.