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Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
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Development of Standardized Material Testing Protocols for Prosthetic Liners.

John C Cagle1, Per G Reinhall2, Brian J Hafner3

  • 1Department of Bioengineering, University of Washington, 3720 15th Avenue NE, Box 355061, Seattle, WA 98195

Journal of Biomechanical Engineering
|February 25, 2017
PubMed
Summary
This summary is machine-generated.

Standardized protocols were developed to test prosthetic liners

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Area of Science:

  • Biomaterials Engineering
  • Prosthetics and Orthotics

Background:

  • Prosthetic liners are critical for patient comfort and function.
  • Existing characterization methods lack standardization, hindering product comparison and development.

Purpose of the Study:

  • To establish standardized protocols for material property characterization of prosthetic liners.
  • To ensure test repeatability, minimize error, and generate clinically relevant data.

Main Methods:

  • Developed and validated protocols for six material properties: compressive, shear, tensile, and volumetric elasticity, coefficient of friction (CoF), and thermal conductivity.
  • Utilized finite element analysis (FEA) to optimize test geometries for shear and tensile elasticity.
  • Adapted testing conditions (e.g., test maxima, cyclic conditioning, CoF measurement type, thermal conductivity setup) based on material behavior and clinical relevance.

Main Results:

  • Established distinct testing procedures for various material properties, accounting for the diverse range of commercial prosthetic liners.
  • Identified optimal conditions for each test, including specific requirements for elasticity tests, dynamic CoF measurement, and thermal conductivity assessment.
  • Demonstrated the feasibility of the developed protocols across eighteen different prosthetic liner products.

Conclusions:

  • The developed protocols offer a standardized framework for evaluating prosthetic liner material properties.
  • These standardized tests will aid in improving clinical selection of liners for individual patients.
  • The findings will guide the development of next-generation prosthetic liner materials and products.