C-Fast is a gentle minimally invasive orthodontic treatment for adults to straighten the upper and lower front six teeth, the teeth that are visible when you smile. Traditional braces are unsightly and you have to wear them for years. C-Fast treatment is fast! Usually between four to six months. The clear brackets and tooth colored wires make the braces almost invisible. C-Fast orthodontics cost a fraction of traditional orthodontics and is a great option to straighten your front teeth.