What we see at the bench, with the literature alongside. Every piece opens with the short answer and closes with its sources.
Materials
Monolithic zirconia is the strongest option and can be conventionally cemented on a retentive prep. Lithium disilicate (e.max) is more translucent, less strong, and needs bonding when the restoration is thin. Multilayer zirconia sits in between, with a shade gradient and, in some discs, a strength gradient. Monolithic crowns in both materials exceed 96% five-year survival.
Implant prosthetics
What the ITI consensus and systematic reviews say about screw- vs cement-retained implant crowns, residual cement, access-hole position and angled channels.
Full-arch
Records, multi-unit abutment details, bite and VDO, photos: what the lab needs for a full-arch immediate load, from the PMMA provisional to the final.
Full-arch
Monolithic zirconia, zirconia on a milled titanium bar and PMMA for full-arch implant bridges, what reviews show, and what changes on the lab Rx.
Shade and esthetics
How the VITA Classical A1–D4 and VITA 3D-Master shade guides are organized, when each one helps, and how to send the shade so the crown comes back right.
Working with the lab
Scan body capture, wrong platform, missing bite, contacts and shade: why implant crowns come back for remakes or adjustments, and what to check on the Rx.
One technical letter a month
Materials, protocols and what we see at the bench. No promotions, and you can leave anytime.