Oh man… I ALMOST just lost my lunch! Lindsay Lohan was photographed on the red carpet smiling last Wednesday… something that seems normal, right? Unfortunately for her, photographers got a glimpse of her yellow, rotting teeth and now a dental expert is saying that it comes as a result “from smoking and drug use.” Why didn’t you just wear veneers Lindsay?! Hit the jump to see the pic & what the dental expert had to say… Wendy L.