07 December 2009Botox continues to add to its wide range of applications with news that the non surgical injectable can be used to ease the discomfort and appearance of overbuilt jaw muscles.Botox is best known for its wrinkle smoothing properties but there are many other uses for the treatment, including pain relief. The Daily Mail reports that the latest use aims to reduce the appearance of unsightly jaw muscles that have become over defined. When Botox is injected between a muscle and a nerve it blocks the impulse between them and causes the muscle to relax. This means that it can be useful in relieving anything from wrinkles to muscle spasticity that causes palsy and tics or tension headaches. When jaw muscles become bulky or painful due to over use, for example as a result of teeth grinding, Botox can help ease the discomfort and soften the appearance when injected into the over-worked jaw muscles. Dr Bob Khanna, a leading cosmetic and reconstructive dental surgeon, explained to the Daily Mail that Botox can relax the overactive muscles in the jaw to stop bruxism - the habit of grinding and clenching teeth. He treated Louisa Smith for her bruxism and she was delighted to find that not only was her pain eased but so was the square, boxy appearance of her jaw. She said: "Then, over the next couple of weeks [of treatment], the shape of my face seemed to be changing; the width of my lower face was less, the jaw looked less square, softer somehow. At the same time, I know I stopped grinding my teeth. "When I saw the before and after photos, I couldn't believe the difference. I was delighted."