A herbst is classified as a functional appliance, meaning it will make you hold your lower jaw forward and try to "re-train" your bite. This is a controversial theory. You will learn to posture your jaw forward which makes the overbite less, but while you are holding your jaw forward, your jaw joint is out of its socket, sometimes functional appliances contribute to TMJ problems later in life. A more stable and effective way to treat an overbite is to use a headgear, which redirects growth. A headgear can only be used up to age 12 for girls and 14 for boys, active growth has to be present. Extracting upper teeth can also be done for overbite correction, the gaps will be used to bring the front teeth back and reduce the overbite. It sounds extreme, but it has been done for decades and is a great way to fix the bite. The office I work in does not use functional appliances such as herbst, in the past we did use them but we saw alot of relapse of the bite correction and in general they were hard to work with and uncomfortable for the patient, they also broke alot. You will have to ask your orthodontist what type of treatment options are available.
Certified Orthodontic Assistant