Teeth can also change with age
Not every later change in tooth position means your orthodontic treatment has failed.
Research in people who never had orthodontic treatment also shows that tooth positions and crowding can change over time. [9]
That is one reason long-term retention may be advised when keeping the teeth aligned remains important. Your exact plan should still be based on your own teeth and treatment rather than on one lifelong rule for everybody. [ 9–11 ]




