I had braces for 4 years with unsatisfactory results, and am left with a 8mm over jet. Is it possible to use a twin block appliance to move my lower jaw forward as an adult? I will not consider lower jaw surgery. How would I find an orthodontist that successfully uses functional appliances in the Seattle area?
Twin Block Appliance to Reduce 8mm Overjet in Adult?
Doctor Answers 1
Functional appliances for an adult
All a functional appliance will do when used by an adult is move teeth...no bone changes...If you had such a large overjet after braces I'm guessing that you have a very severe skeletal problem.
There is a limit to how far you can move the teeth to compensate for a poor bone pattern...at some point surgery is the only way to correct severe problems.
There are a few doctors who believe functional appliances work for adults...I would be very leery of this approach..In 30 plus years of practice I have never seen it work!