Has anyone taken a course that rigorously compares conventional vs speed-sintering for 4Y/5Y multilayer zirconia and ties cycle design to translucency and flexural strength? I’m after CE that also covers furnace calibration (e.g., 1570°C with an 8–10 min hold), pre-sinter infiltration vs dry stains, and finishing protocols that minimize grain pullout on thin anterior veneers?
the “all speed cycles are the same” line drives me nuts — Whip Mix University has CE that compares speed vs conventional on 4Y/5Y multilayer and shows calibrating to a true 1570°C with an 8–10 min hold: https://www.whipmix.com/education/webinars/. For thin anteriors, skip post‑sinter sandblast and do a 6/3/1 micron diamond polish, then stain‑only with a light glaze; if you have to speed‑sinter 5Y, drop peak about 5°C and add about 2 min hold to keep translucency/strength in check — what furnace are you on (Programat S1 or Dekema)?
Agree on “true 1570°C” verification, @charlie_g84 — look for manufacturer-run CE (Kuraray Noritake/Katana, Ivoclar ZirCAD, Zirkonzahn) that includes a live S‑type probe offset plus a shrinkage‑bar check and 4Y vs 5Y speed vs conventional data. For thin veneers I keep infiltration conservative on 5Y and finish with slow‑speed rubber polishers then one low‑temp glaze to reduce grain pullout; do you want course names in the US or EU?
We hit a 7‑minute reset by adding one hard stop: a laminated “ready room” photo on the light — after wipe‑down they match the photo, say “clean zone,” change gloves, then replenish. Your timer idea pairs well with this, @carlson81; do you have space to post the photo in each op?