title: Nonsurgical approach to Class I open-bite malocclusion with extrusion mechanics: a 3-year retention case report.
abstract: Anterior open bite is one of the most challenging malocclusions for orthodontic treatment. The high incidence of relapse is a major concern. Therefore, accurate initial examination, diagnosis, treatment plan, and consideration of habitual risk factors are crucial for a successful outcome without unwanted sequelae. Excellent patient compliance for retainer wear is also a critical factor. This case report shows the 3-year stability of a nonsurgical and nonextraction orthodontic treatment of a 5-mm anterior open-bite malocclusion in a 12-year-old girl with extrusion mechanics and habit modification. After 2 years of orthodontic treatment, excellent outcomes were achieved. With an appropriate retention protocol, the long-term stability of the treatment was favorable.
authors.affiliation: Assistant professor, Department of Orthodontics, University of Illinois at Chicago, Chicago, Ill. Electronic address: patsawas@uic.edu.
authors.forename: Phimon
authors.initials: P
authors.lastname: Atsawasuwan
authors.affiliation: Clinical professor, Department of Orthodontics, University of Illinois at Chicago, Chicago, Ill.
authors.forename: William
authors.initials: W
authors.lastname: Hohlt
authors.affiliation: Professor and head, Department of Orthodontics, University of Illinois at Chicago, Chicago, Ill.
authors.forename: Carla A
authors.initials: CA
authors.lastname: Evans
mesh_terms: D002508:Cephalometry / Q000379:methods; D002648:Child; D003724:Dental Arch / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008311:Malocclusion, Angle Class I / Q000628:therapy*; D008334:Mandible / Q000473:pathology; D008437:Maxilla / Q000473:pathology; D024343:Open Bite / Q000628:therapy*; D050793:Orthodontic Extrusion / Q000379:methods*; D018704:Orthodontic Retainers; D010155:Palatal Expansion Technique; D010347:Patient Care Planning; D014061:Tongue Habits / Q000628:therapy; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods; D016896:Treatment Outcome