Sufficient retention.
Johnston
K D
KD
Snelling
J D
JD
D002648:Child; D005547:Foreign Bodies / Q000601:surgery; D006801:Humans; D008297:Male; D009960:Oropharynx / Q000601:surgery; D009967:Orthodontic Appliances / Q000009:adverse effects*; D010155:Palatal Expansion Technique / Q000295:instrumentation