The American Association of Orthodontists warned against "Mewing," a social media trend to reshape the jawline and improve facial aesthetics.
The organization issued a warning that the unregulated practice, which calls for placing the tongue in a specific way, can have unintended and potentially harmful side effects, including dental issues and speech impediments, according to a Jan. 23 news release from the AAO.
The process is named after John Mew, an orthodontist who lost his license due to unsupported claims.
"There's no scientific evidence to support its claims of reshaping the jawline, and the potential risks outweigh any unproven benefits," said Myron Guymon, DDS, president of the AAO.