Orthotics generally provide proper foot support for between 2 and 4 years. See your podiatrist to have your orthotics assessed to ensure that you have the correct biomechanical suppport and to determine if your prescription hasn’t changed.
In my office custom made prescription orthotics are made from neutral position plaster cast impressions of the feet. We can furnish our patients with all the documentation that insurance companies require. The information would include the biomcechanical exam, gait analysis and the materials from which the orthotics are made.
Our orthotics are made by Langer Biomechanics.