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Related Experiment Videos

ADM guidance-Ceramics: Fracture toughness testing and method selection.

Paulo Francisco Cesar1, Alvaro Della Bona2, Susanne S Scherrer3

  • 1Department of Biomaterials and Oral Biology, School of Dentistry, University of São Paulo, São Paulo, Brazil.

Dental Materials : Official Publication of the Academy of Dental Materials
|April 11, 2017
PubMed
Summary

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This summary is machine-generated.

This study reviews fracture toughness (FT) tests for dental ceramics, recommending SEVNB, SEPB, CNB, and SCF methods. Avoid the IF test due to calculation criticisms for reliable dental material assessment.

Area of Science:

  • Dental Materials Science
  • Mechanical Engineering
  • Biomaterials

Background:

  • Accurate assessment of dental ceramic fracture toughness (FT) is crucial for material reliability.
  • Existing FT testing methodologies require critical analysis for dental applications.

Purpose of the Study:

  • To critically analyze fracture toughness (FT) tests for dental ceramics.
  • To ensure reliable, repeatable, and reproducible assessment of FT in dental materials.

Main Methods:

  • Fracture mechanics theory was reviewed.
  • Existing FT methodologies were critically analyzed.
  • Advantages and disadvantages of FT methods for dental researchers were determined.

Main Results:

Keywords:
Dental ceramicsFractographyFracture toughnessMechanical properties

Related Experiment Videos

  • Recommended FT methods for dental ceramics include SEVNB, SEPB, CNB, and SCF.
  • SEVNB offers easy notch production; SEPB generates sharp cracks.
  • CNB is complex but robust; SCF uses clinically sized cracks. IF test is not recommended.

    • Conclusions:

    • Dental researchers should understand fracture mechanics principles for FT measurement.
    • Methodology selection for FT testing should consider the pros and cons of each test.