Cooperation with other dental specialists
In cases when permanent teeth are lost or there is some bone loss due to periodontitis, the orthodontist helps with moving the remaining teeth to more stable positions, where cleaning is easier and forces from mastication are balanced. This is usually done with a "minor" orthodontic treatment, mainly in the problematic area alone, after a thorough and detailed treatment plan by the treating dentist/specialist.
Orthodontics is also used in order to make esthetic dental work less invasive, by moving the teeth into more balanced positions. This makes the restorative work of the dentist look much more natural.