Question Author
I'll be on the phone tomorrow, annie!!
I checked again online, and spelled it differently, then got it I'm sure - Complex Odontoma. There are some horrible photos which are of huge versions of the same, but generally it's a lump of assorted bits of enamel, dentine and cement that's just 'there'! They seem to be discovered only when they've stopped teeth from erupting, or when an awkward one's caused pain etc. Then an x-ray will show them up, and they will always be removed, never to return. There are compound ones too, which are basically more teeth-like ones, rather than odd lumpy ones, which seem to be what we've got. I'm almost positive that this is what they'll tell me, but I'm crossing my fingers anyway! The dentist said to Fin that he was special and that they'd all be interested in his mouth. He's just gone to bed now, planning the story for the class at 'carpet time' tomorrow, bless him!
Even spelled this way, it seems prairie dogs are still unusually susceptible to it, which makes me laugh!