Orthodontic Relapse: Why It Happens
Teeth shift after treatment if retainers aren't worn. Here's the science.
Dr. James Chen
Orthodontist
The biology
- Periodontal ligaments have elastic memory
- Natural jaw changes over time
- Soft tissue pressure
- Crowding tendency from lower jaw
Typical relapse timeline
- First year without retainers: 30–40% relapse
- 2–5 years: significant relapse possible
- 10+ years: substantial crowding return
What retainers do
- Hold teeth in new position
- Allow ligaments to remodel (6–12 months)
- Counter natural movement pressure
Prevention
- Fixed wire behind lower front teeth
- Vivera removable nightly for life
- Hygiene visits every 6 months
- Replacement when trays wear
If relapse occurs
- Short retreatment (3–6 months Invisalign)
- Cost: AED 5,000–12,000
References
- American Association of Orthodontists
Referenced sources
- American Association of Orthodontists
Medical disclaimer. This article is informational and does not replace professional clinical advice. For a plan specific to your situation, book a consultation with a Paradise Dental specialist.
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