I have been working with inCoris zirconium crowns, abutments, and bridges using the Ivoclar 90 minute rapid firing oven. The Sirona inFire HTC has a record time of 10 minutes. This opens new options for chairside InCoris ITS restorative protocols. I will soon be posting videos with these applications.
With the expansion of e.max blocks for chairside 3 unit bridges and implant abutments and abutment/crowns, e.max will still my my go to material. However, materials and processes evolve. Keep an eye out for inCoris TZI.