title: Modified protrusion arch for anterior crossbite correction - a case report.
abstract: Borderline and mild skeletal Class III relationships in adult patients are usually treated by orthodontic camouflage. Reasonably rood results have been achieved with nonsurgical teatment of anterior crossbite. Class III malocclusion may be associated with mandibular prognathism, maxillary retrognathism, or both. Class III maxillary retrognathism generally involves anterior crossbite, which must be opened if upper labial brackets are to be bonded. If multiple teeth are in crossbite, after opening the bite usual step is to ligate forward or advancement arch made of 0.018" or 0.020" stainless steel or NiTi wire main arch that must be kept separated 2 mm from the slot ofupper incisor braces. Two stops or omegas are made 1 mm mesial to the tubes of the molar bands that will impede main arch from slipping,and in this manner the arch will push the anterior teeth forward Here we have fabricated a modified multiple loop protrusion arch to correct an anterior crossbite with severe crowding that was not amenable to correct by advancement arches.
authors.forename: Abhishek Singha
authors.initials: AS
authors.lastname: Roy
authors.forename: Gulshan Kr
authors.initials: GK
authors.lastname: Singh
authors.forename: Pradeep
authors.initials: P
authors.lastname: Tandon
authors.forename: Ramsukh
authors.initials: R
authors.lastname: Chaudhary
mesh_terms: D000293:Adolescent; D003724:Dental Arch / Q000473:pathology; D005260:Female; D006801:Humans; D007180:Incisor / Q000473:pathology; D008313:Malocclusion, Angle Class III / Q000628:therapy*; D008437:Maxilla / Q000473:pathology; D016382:Orthodontic Appliance Design; D009969:Orthodontic Wires; D057887:Overbite / Q000628:therapy; D014087:Tooth Movement Techniques / Q000295:instrumentation