Wondering if anyones child has had one of these Herbst appliances put in? DD has had braces for over a year and her teeth look great but apparently her jaw his misaligned due to her overbite(which has never been noticeable) Now the ortho says she needs this Herbst appliance for her jaw. This appliance looks painful and very large for a little mouth like hers. She is not very happy and that was when she thought she could take it in and out of her mouth. She was beside herself when she found out its permanent for 9 months!!!