"I wish Jesse’s teeth had been a little more realistic, a little more messed up. Aaron Paul has perfect teeth, and Jesse Pinkman, on the other hand smoked a lot of meth, and that smoke eats the enamel right off the teeth. Furthermore, this poor kid got beat up two or three times a season, and his teeth were still absolutely perfect .So if we could’ve done a little something to them… but on the other hand, Aaron is such a good-looking guy that maybe that counts as poetic license that we kept his teeth looking nice."  (Vince Gilligan)