We have several patients that have undergone orthodontic treatment either many years ago or relatively recently and are now disappointed because their teeth have shifted. Maintenance is a very important part of the orthodontic process and you need to follow the directions of your orthodontist following active treatment. Typically, after completing active braces or Invisalign you need to still wear your retainers full time for 6 months. This is critical during this period because your teeth are still actively trying to move. After the first 6 months you should wear removable retainers at night for the rest of your life.