Taiwanese dentists have urged fast food chains to drop over-sized hamburgers from their menus following a growing number of jaw injury cases, a report said Thursday.
Patients have developed sore jaws or had difficulties opening their mouths after consuming giant burgers, the China Post quoted professor Hsu Ming-lung of the School of Dentistry at National Yang-Ming University as saying.
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.
Subscribe to Independent Premium to bookmark this article
Want to bookmark your favourite articles and stories to read or reference later? Start your Independent Premium subscription today.
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies