How will my underbite actually be fixed with braces? how can they get the bottom under and then behind the top- they will get in each others way no?

Depends: Depends on the severity of your problem. Without thoroughly examining you we can only "guess". For patients with a moderate to severe problem, treatment is often orthognathic surgery--this treatment involves your dentist, orthodontist and oral surgeon. They must be knowledgeable ; talented. You can always consider a 2nd opinion.

Under and Overbites!: Your question involves an understanding of the biomechanics of tooth movement that is pretty complicated. In essence, the lower teeth are moved down into the bone, called intrusion. Then, using rubber bands that will extend from the upper back teeth to the lower front teeth, the lower are moved backward and the upper forward. For a short time their edges may contact though this is only temporary.

See orthodontist : This is the best and predictable solution. A variety of treatments are available for your condition, underbite. However, consulting with your orthodontist is the best way to achieve your treatment goals. Orthodontists are trained three years longer than a general dentist and you will be getting the most beautiful smile and functional bite. Good luck.

Forces: it may involving a combination of forces including potentially fixing any tilting of your teeth, pulling your lower jaw back, expanding your upper palate just to name a few. no, they won't get in each others way-- the orthodontist will plan movement to address that. we solve underbites all the time. See an orthodontist for a free consult

Depends: If dental underbite, easily fixed w braces. If skeletal or skeletal/dental underbite, easily fixed w braces + jaw surgery. See a qualified Orthodontic Specialist for the best advice.

Orthodontist's job: That is what an orthodontist does. To simplify, consider your braces as the wagons of a train, the wire the railroad and your teeth as the contents of the wagons. Also consider the elatics and chains we as orthodontists use in your mouth as the horse of that train. We move teeth with wires, elastics and chains to the right orientation and angulation and relationship with other teeth. That is ortho