This is just a small slipup and I know that it is only someting a dentist would notice and I happen to be a Dentist. But when they Take the x-rays of Bruce's teeth you can see the fake teeth and the fillings and when they take an x-ray of the other guys teeth, if you pause when they hang up the second x-ray you can cearly see that the x-rays are exactly the same and there is no way you can clone someone's teeth perfectly.