In the interview, Efron said he"shattered his jaw" while"running through his house in socks and slipped, smacking his chin against the granite corner of a fountain". He then lost consciousness, and woke up to his chin bone"hanging off his face". Yikes.
When pressed for more information, he says the masseter muscles, used for chewing, work together with the other muscles of the face"like a symphony". When he was injured, however, the muscles on the inside of his face and jaw had to compensate and so he sought out a specialist to do physical therapy with him. However, he took some time off from doing this in Australia, which might not have been the best of timing. He says:"The masseters just grew. They just got really, really big.
Efron claims he knew nothing about the conversation happening online about his jaw-dropping new look, and not until his mom called to ask him whether he'd had plastic surgery did he realise he was quite a big talking point. Saying he's largely been off social media since the age of 17, he added:"If I valued what other people thought of me to the extent that they may think I do, I definitely wouldn’t be able to do this work.