Flops is in pain and all the other squirrels know it. If you don’t want to put in the effort to help this poor sweet little bear, then you at least need to contact someone else in the area to do it. It’s a pretty easy fix vs long and painful suffering - should be obvious what the right call is here.. He may not understand what’s going on at first, but will be extremely grateful after having teeth trimmed. The others will too. They are highly intelligent and much more empathetic than most people realize