On the most recent episode of KBS “Vitamin” aired on April 30Th, G.NA was diagnosed with a severe case of TMD (Temporomandibular Disorders).

TMD is a result of problems with the jaw and jaw joint surrounding facial muscles that control chewing and moving the jaw (Source: WebMD.com).

Further to this G.NA previously received health warnings of being severely underweight for her age.


G.NA advised that she was currently undergoing treatment for her teeth and never imagined that she`d have a problem like TMD.

Professor Jeon Yang Hyeon of Kyunghee University Dental Hospital,Department of Oral Medicine advised,
“In G.NA’s case, her molars at both sides are not good and she cannot properly chew food. Because of this, her jaw abnormally applies force and shows an unstable location. It’s important that she picks up the practice of chewing on both sides and has combined treatment for her overbite and teeth in the earliest possible time.”

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