I really don't think Paul McCartney wears a wig, not that's really relevant to anything. He's got a great big bald patch at the back, can't understand why you would have a wig and have a bald patch?
Well they make sets of false teeth with fake fillings in and on display....
"ooh look Ethel he's got false teeth doncha think?"
"nah Gladys look at them fillings! 'im over there has got a syrup on his head though"
"nah he ain't. see the bald bit at the back"
"ooh yes, must be real then, Gladys. Oh Gladys?"
"we ain't real, are we?"
"nah, we're just a device for Dennis C to use on Digital Spy when the mood takes 'im"
TWO OLD LADIES VANISH SADLY OUT OF EXISTENCE