The Herbst is used to correct the front-to-back relationship of the upper and lower jaws. It has a rod and tube that works like a shock absorber to position the lower jaw forward. This enhances growth of the lower jaw in a forward direction while, at the same time, applying pressure to the upper jaw in the opposite direction.
At first appearance the Herbst looks like a mouthful but, because it is all hidden inside the mouth, it appears on the outside no different than braces. In addition, since it is worn continuously, most patients adapt to the Herbst in only a few days. The Herbst is usually worn for 9 to 12 months with adjustment appointments about every 10 weeks.
The great advantage of the Herbst is it works on the lower jaw where most of the correction is needed and it works faster and is more predictable than other treatments (for instance headgear) because you don’t have to remember to take it on and off. The Herbst will usually result in less overall treatment time in braces and more predictable success without tooth extraction or jaw surgery.