What if Fixation Base contacts bone in the posterior? What could that mean?

Exostosis that we missed. Lab may have trimmed the model and missed it. Inspect, a flap and adjust bone, or adjust metal with a disc, if possible – do not cut off a CHROME Loc or pin site.

Pin Guide may have seated crooked. This is BAD. If the teeth are still in, remove the Fixation Base and re-insert with the Pin Guide FULLY seated.

Mobile teeth may exist and the Pin Guide moved the teeth. If the Pin Guide has an integrated bite, re-start the case using the bite for seating the Pin Guide. Next time, inform the CHROME team of mobile teeth, especially of most or all are mobile. We will design a Pin Guide that seats against the opposing teeth.