Orthodontic mini-screws placement

Action / reaction is a basic Newton principle. When orthodontists needs to move teeth, they usually take their “anchorage“ on other teeth in the mouth. Sometimes, extra-oral forces are required in order to prevent unwanted tooth displacement. Contemporary orthodontics can use “true anchorage“ by the use of mini-screws that are inserted directly in the bone. These screws are integrated in the bone and cannot move. Mini-screws have many advantages and can be very useful to avoid extra-oral forces devices fo