[Pathogenic situations after orthodontic treatment. Defects in skeleton and soft tissues that should be avoided after orthodontic treatment].

The perfect correction of dental alignment anomalies found in dento facial dysmorphosis should not be the only criterium of success in dento facial orthopedics. One must insure, lest severe T.M.J. disorders and sleep apnea problems subsequently occur, that : (1) the condyles and mandibular vertical branches are correctly positioned relative to the basilar apophysis and cervical vertebrae, (2) the hyoid bone must not descend too low relative to the C3-C4 intervertebral disk.