Oftentimes Botox® is injected into particular points on the face to block nerve signals to various muscles. In doing so, movement is limited, which reduces the look of lines and wrinkles, and creates a smoother overall appearance. It is often injected on the forehead, between and around the eyes (crow’s feet) creating a smoother overall appearance. Dentists can also use Botox® for therapeutic purposes, in conjunction with other dental treatments, for things like complications associated with tight jaw muscles like TMJ pain, grinding and clenching (bruxism), treatment of chronic headaches and migraines, and prevention of teeth damage due to daytime teeth grinding. Dentists are highly qualified to administer Botox®, since they are trained in facial structure and facial anatomy, have exceptional knowledge and experience with the head and neck anatomy, are competent and comfortable using needles, and know more than anyone what makes a great smile. Typical Botox® injections will last for 3-5 months, leaving wrinkles and other lines less visible afterwards.