Space maintainers are used to keep teeth from drifting into an empty tooth space due to early loss of primary (baby) teeth. Baby teeth act as a guide for the eruption of the permanent teeth. A space maintainer is made of stainless steel and/or plastic. It can be removable or fixed to the teeth.
Palatal Expander Device (PED)
Both removable and fixed PEDs can be used to address crowding and other issues by expanding the upper jaw to make more room to accommodate tooth and/or jaw alignment.
If your lower jaw sits too far back, Dr. Wong may recommend a special appliance to help adjust your lower jaw. A Herbst appliance can help improve the balance of the jaws by gently encouraging the forward positioning of the lower jaw. This appliance is connected directly to your braces and will be worn full time until the desired result is achieved.