“High-speed sintering” of Zirkonoixd restorations has been possible for some time now. In this overview, scientific findings relevant to users are presented briefly and condensed to the essentials.
Felicitas Mayinger, Annett Kieschnick, Bogna Stawarczyk
The term “high-speed sintering” refers to zirconium oxide sintering protocols
- a holding time of approx. 5 – 20 minutes,
- a heating rate > 200 °C/min and
- a final sintering temperature > 1560 °C/min
summarized.
Illustration from “High-speed sintering of zirconium oxide” by Bogna Stawarczyk, Annett Kieschnik, Martin Rosentritt, Felicitas Mayinger (Quintessenz Zahntechnik 2021, Issue 5)
What effects do these sintering parameters have on the manufactured zirconium oxide restorations? The following table summarizes the scientific findings from selected studies for the user.
Literature sources and link to the publication
[1]
Impact of high-speed sintering on translucency, phase content, grain sizes, and flexural strength of 3Y-TZP and 4Y-TZP zirconia materials
[2]
Influence of speed sintering on the fit and fracture strength of 3-unit monolithic zirconia fixed partial dentures
[3]
Impact of high-speed sintering on accuracy and fit of 4 mol% yttria-stabilized tetragonal zirconia polycrystals (4Y-TZPs)
[4]
Impact of high-speed sintering, layer thickness and artificial aging on the fracture load and two-body wear of zirconia crowns.
[5]
Impact of High-Speed Sintering of Three-Unit 3Y-TZP and 4Y-TZP Fixed Dental Prostheses on Fracture Load With and Without Artificial Aging.
[6]
Influence of CAD/CAM Fabrication and Sintering Procedures on the Fracture Load of Full-Contour Monolithic Zirconia Crowns as a Function of Material Thickness.
[7]
Multilayer zirconia: Influence of positioning within blank and sintering conditions on the in vitro performance of 3-unit fixed partial dentures
Additional information
In addition to further information, here you will also find an overview of the high-speed sintering furnaces currently available on the market: More