There is a manufacturer from Germany, King Kong Tools, who sells all types of teeth for hogs, grinders, etc...Called them a while back to find out if they made Fecon teeth- turns out they do, but they sell them only to Fecon and Fecon dealers. Asked them about if they can recondition teeth (I only replace when both carbide tips are gone from my Fecon teeth) and he said that they had tried, but spent too much time cleaning and re-aligning the metal around the carbides to make it cost effective...but I have probably 10 teeth that are good enough to be salvaged and re-tipped...then rest have been scrapped.
At the Northeast Logging Expo in Bangor in May I spoke with a rep from Quadco (they make hot saws and other attachments for timbcos and the like) who had some prototype teeth for a Fecon...not sure if they are going to make it to production, or if Fecon would even let them (Patent wise) the Quadco tooth was much like the FAE tooth and that the cutting face was the only piece that was swapped out (Bolt from the back) when dental work was required
-TMTS
p.s Idahohay- where are you in Idaho?