Endodontic Access Effects on Lithium Silicate and Disilicate Fracture Resistance Cemented to Human Teeth

Abstract

Objectives: To evaluate endodontic access (EA) effect on the fracture resistance (FR) of lithium silicate (LS-- CeltraDuo CAD) and lithium disilicate (LD-- e.max CAD) full contour crowns. Ho is there will be no difference in FR between CAD materials with or without EA. Methods: 40 human mandibular molars were randomly assigned to 4 groups (n = 10); LD, LD with EA and LS, LS without EA. All specimens were prepared using a lathe device, following guidelines for full contour LD/LS CAD restorations. Crowns were fabricated with a chairside CAD/CAM system (CEREC Omnicam, SW4.5, MCXL). Crystallization for LD and firing-cycle for LS accomplished (Programat P700). Crowns were adhesively luted (4.5 percent HF/silane/RelyX Unicem2). EA Groups: EA and instrumentation was performed by a board certified endodontist.

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Document Details

Document Type
Technical Report
Publication Date
Jun 07, 2019
Accession Number
AD1128108

Entities

People

  • Greg A. Spilsbury

Organizations

  • Uniformed Services University of the Health Sciences

Tags

DTIC Thesaurus Topics

  • Air Force
  • Dentistry
  • Environment
  • Failure Mode And Effect Analysis
  • Flexural Strength
  • Materials
  • Medical Personnel
  • New York
  • Oral Surgery
  • Physical Properties
  • Prostheses And Implants
  • Prosthetics
  • Resistance
  • Root Canal
  • Teeth
  • Therapy
  • United States

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering