This high-yield revision note on Retention & Relapse in Orthodontics: Why Teeth Move Back covers everything examiners typically test under Orthodontics — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Aspect | Detail |
|---|---|
| Definition of retention | Holding treated teeth in their corrected position long enough to allow reorganization of the supporting structures (periodontal ligament, gingival fibers, alveolar bone) |
| Causes of relapse | Incomplete reorganization of periodontal ligament and gingival fibers (transseptal and supracrestal fibers reorganize the SLOWEST, taking many months); persistence of the original malocclusion etiology (habits, growth pattern); ongoing soft tissue pressures (tongue, lips); failure to eliminate the original causative factor |
| Retainer types | Removable - Hawley retainer (acrylic base + labial wire), Essix/clear thermoplastic (vacuum-formed) retainers; Fixed - bonded lingual wire retainer (canine to canine), commonly used for the lower anterior segment |
| Fiber reorganization timeline | PDL/gingival fibers - relatively fast, roughly 3-4 months; Supracrestal/gingival fiber network (particularly around rotated teeth) - MUCH SLOWER, potentially taking a year or more, hence the recommendation of prolonged/indefinite retention OR a circumferential supracrestal fiberotomy (CSF) for rotated teeth |
Before your exam, come back to this page and re-scan the table above rather than re-reading full notes — that's the fastest way to lock in Retention & Relapse in Orthodontics: Why Teeth Move Back for Orthodontics questions in NEET MDS, INI-CET MDS & INBDE.
Get full access to every topic note, 1,030+ short notes, high-yield points and video lectures — free to register, one login for NEET MDS, INI-CET MDS & INBDE.
Get Full AccessAll 90+ detailed notes, 1,030+ short notes, high-yield points, video lectures & mock tests for NEET MDS, INI-CET MDS and INBDE — one subscription.
NEET MDS