| Pre-op (11 y/o) | Post-op (12 y/o) | Follow Up (14 y/o) |
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Relapse
A 11-year-old man starts orthodontic treatment and finishes in 9 months. Two years later crowding relapses because of loss of suck down retainers. It appears that lingual retainer is necessary.
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Ortho Cases
Xin Wei, DDS, PhD, MS 1st edition 10/14/2017, last revision 10/14/2017