Following a growing number of jaw injury cases Taiwanese dentists have urged fast food chains to drop over-sized hamburgers from their menus, a report said Thursday.
![Jaw Injuries from Giant Burgers in Taiwan Jaw Injuries from Giant Burgers in Taiwan](https://www.medindia.net/afp/images/Lifestyle-food-hamburger-7456.jpg)
Problems can arise when fast-food fans tuck into hamburgers larger than eight centimetres (three inches) high, Hsu said according to the paper.
A human mouth is designed to gape over objects measuring up to four centimetres, and overextending can hurt the joint between the jawbone and the temporal bone in front of the ears, Hsu said.
Source-AFP