my dog has an obsessive compulsive disorder with nibbling. it doesn't bother me too much because he never CHEWS anything, never puts holes in anything, he'll just nibble things with his front teeth and it's more annoying than anything, especially while i'm trying to sleep and he's nibbling on my blanket. after asking around on the internet why he does it, someone suggested that he may have a broken tooth. i looked into his mouth and noticed that all his teeth were fine, except for one of his bottom front teeth. it's crooked, loose, and is slightly discolored (all his other teeth are perfect, this one just looks like it has a cavity or something.) what can i do about this? will he be okay? i have absolutely NO money to take him to a vet.