Treatment of a severe arch-length deficiency with anteroposterior and transverse expansion: long-term stability.
This article describes the nonextraction treatment of a girl in the late mixed dentition with a severe arch-length deficiency. Rapid maxillary expansion and molar distalization were combined with a lip bumper in the mandible, followed by fixed appliances. Although the literature has reported a high rate of relapse with this method of treatment, excellent stability was achieved at 5 years 3 months posttreatment. The merits of extraction vs nonextraction treatment and stability are discussed.
Sabri
Roy
R
American University of Beirut Medical Center, Beirut, Lebanon. roysabri@dm.net.lb
D002508:Cephalometry / Q000706:statistics & numerical data; D002648:Child; D005115:Extraoral Traction Appliances; D005260:Female; D006801:Humans; D008311:Malocclusion, Angle Class I / Q000628:therapy*; D010155:Palatal Expansion Technique / Q000295:instrumentation; D055502:Secondary Prevention; D014081:Tooth Extraction; D014097:Tooth, Unerupted / Q000601:surgery