High-speed-sintering of zirconia – relevant scientific findings for the user briefly summarized

High-speed-sintering of zirconia – relevant scientific findings for the user briefly summarized


For some time now, „high-speed sintering” of zirconia restorations has been possible. In this overview, relevant scientific findings are presented briefly and condensed to the essentials.

Felicitas Mayinger, Annett Kieschnick, Bogna Stawarczyk

Sintering protocols of zirconia with

  • a holding time of approx. 5 – 20 min,
  • a heating rate > 200 °C/min and
  • a final sintering temperature > 1560 °C/min

are summarized und the term „High-speed-sintering“.

High-speed-sintering of zirconia

Illustration adapted from „High-Speed-Sintern von Zirkonoxid“ by Bogna Stawarczyk, Annett Kieschnik, Martin Rosentritt, Felicitas Mayinger (Quintessenz Zahntechnik 2021, Ausgabe 5)

What effects do these sintering parameters have on the fabricated zirconia restorations?The following table summarizes the scientific findings of selected investigations for the user:


Literature sources and link to the publication

Impact of high-speed sintering on translucency, phase content, grain sizes, and flexural strength of 3Y-TZP and 4Y-TZP zirconia materials

Influence of speed sintering on the fit and fracture strength of 3-unit monolithic zirconia fixed partial dentures

Impact of high-speed sintering on accuracy and fit of 4 mol% yttria-stabilized tetragonal zirconia polycrystals (4Y-TZPs)

Impact of high-speed sintering, layer thickness and artificial aging on the fracture load and two-body wear of zirconia crowns.

Impact of High-Speed Sintering of Three-Unit 3Y-TZP and 4Y-TZP Fixed Dental Prostheses on Fracture Load With and Without Artificial Aging.

Influence of CAD/CAM Fabrication and Sintering Procedures on the Fracture Load of Full-Contour Monolithic Zirconia Crowns as a Function of Material Thickness.

Multilayer zirconia: Influence of positioning within blank and sintering conditions on the in vitro performance of 3-unit fixed partial dentures