- Reaction score
I assume the lithium disilicate is being pressed rather than milled. If so, the narrow chimney of a ti base can be difficult to invest without bubbles (at least in my hands). A custom abutment would be preferred. Bubbles aren't a concern when milling out of zirconia. My personal preference is a ti base.I do a ton of lithium disilicate and maybe that's where my angst is with ti-bases.