It does perhaps change the ball game though I would presume - if the goal is to grow a tooth which didn't develop, it changes the requirement to regrow a tooth

It does perhaps change the ball game though I would presume - if the goal is to grow a tooth which didn't develop, it changes the requirement to regrow a tooth to just regenerating whatever root structure you need to trigger that (which I would assume is a collection of specialized cells/nerves etc. which you could imagine maybe assembling from stem cells in a scaffold and implanting).