Getting or having braces is quite a big deal for sure with the long treatment period, follow-ups & the discomfort faced during and after adjustments made which includes dull soarness or throbbing pain along with some amount of restrictions on munching your favorite food during this period. 😦
But the end result of all this is an improved facial appearance with properly aligned teeth aiding in speech & mastication ; in short – A healthy new smile :).
Is that the end of the story ?? Certainly not !!
The main part of the whole treatment is how you maintain the corrections made & retain it for future.
Here’s where terms like retention & relapse come into picture.
What is retention?
Maintaining newly moved teeth in position,long enough to aid in stabilizing their correction.-Moyers
Why do patients need retention?
Because of the post treatment changes that occur leading to relapse.
Relapse-Loss of any correction achieved by orthodontic treatment. Causes of relapse:
- Periodontal ligment traction
- Due to growth related changes
- Bone adaptation
- Muscular forces
- Failure to eliminate the cause of malocclussion
- Eruption of third molars
- Role of occlusion
Schools of retention:
Theories of retention:
Riedel summarized the nine theories and Moyers added another theory which is the tenth theory mentioned here.
- Theorem 1: Teeth that have been moved tend to return to their former position
- Theorem 2:Elimination of the cause of malocclussion will prevent relapse
- Theorem 3:Malocclussion should be over-corrected as a safety factor
- Theorem 4: Proper occlusion is a potent factor in holding teeth in their corrected positions
- Theorem 5:Bone & adjacent tissues must be allowed time to reorganize around newly positioned teeth
- Theorem 6: If the lower incisors are placed upright over basal bone they are more likely to remain in good alignment
- Theorem 7: Corrections carried out during the periods of growth are less likely to relapse
- Theorem 8: The farther the teeth have been moved ,the lesser is the risk of relapse
- Theorem 9: Arch form,particularly in the mandibular arch,cannot be permanently altered by appliance therapy
- Theorem 10: Many treated malocclussion require permanent retaining devices
Remember as : REOP TLP FAR (REOPening To Let Patients Follow And Retain)
Sources: Bhalaji -Orthodontics the art and science,www.erufucare.com, http://www.buzzfeed.com