A palatal expander is a device in the field of orthodontics which is used to widen the upper jaw (maxilla)[1] so that the bottom and upper teeth will fit together better.[2][3] This is a common orthodontic procedure. The use of an expander is most common in children and adolescents 8–18 years of age. It can also be used in adults, although expansion is more uncomfortable and takes longer in adults. A patient who would rather not wait several months for the end result achieved by a palatal expander may be able to opt for a surgical separation of the maxilla. Use of a palatal expander is most often followed by braces to then straighten the teeth.
It is believed[by whom?][4] that expansion therapy should be started in patients either before or during their peak growth spurt. To obtain maximal skeletal changes, the therapy is typically initiated at a very early age. Expansion therapy performed after the peak growth spurt will lead to more dental changes than skeletal ones, leading to tipping of buccal teeth.
- ^ "Palatal Expanders: What Are They and How Do They Work". Orthodontics Australia. 2020-10-12. Retrieved 2021-02-06.
- ^ Haas AJ (July 1965). "The Treatment of Maxillary Deficiency by Opening the Midpalatal Suture". The Angle Orthodontist. 35: 200–17. PMID 14331020.
- ^ Angle EH (1860). "Treatment of irregularity of the permanent or adult teeth". Dental Cosmos. 1: 540–544.
- ^ Baccetti T, Franchi L, Cameron CG, McNamara JA (October 2001). "Treatment timing for rapid maxillary expansion". The Angle Orthodontist. 71 (5): 343–50. PMID 11605867.