Took the family to the local Association of Exotic Mammal Veterinarians (AEMV) certified vet to get Radarr checked out, and to get the girls done too while I'm there.
Doctor Welch with Forest Trails Animal Hospital in Tulsa, OK said he'd never seen anything like what Radarr has - sent him pictures showing the teeth and jaw, and video of Radarr eating, so he can get with his colleagues for more research and answers.
Meanwhile, he examined Radarr's mouth and discovered Radarr only has these two tusks - no other teeth (after four years of not being able to close the mouth and chew on the teeth they probably just atrophied...). He is using the tusks to tear at food like sliced-up grapes and slurp up the fragments and juice with his tongue. Doing anything to the tusks was thus rejected.
Doc took stool samples of all three, and all came back w/o parasites or abnormalities - except for Starling's (my glutton), which had traces of bacteria and apparently some red dye? She will eat and chew on anything - gotta work on keeping old left over food away from her - the dye is probably from destructive chewing on some cloth she shouldn't be doing and that neither of the others are doing... kids!
Weighed all three before going: Radarr at 75g, Piper (mom) at 105g, and Starling (baby girl) at 150g. Mom's lost some weight from four years ago, but baby girl is still the same - fattening up Radarr and Piper with guacamole treats was suggested.
All in all, Doc gave them all a clean bill of health - didn't suggest any bloodwork.
See him again next year ;-)