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  • Title: Nonsurgical Orthodontic Intervention of a Severe Class II Case Accompanied by Posterior Crossbite Using a Miniscrew-Assisted Straight Wire Technique.
    Author: Hatrom AA, Afify AR, Hassan AH.
    Journal: Case Rep Dent; 2019; 2019():5696370. PubMed ID: 31687219.
    Abstract:
    Class II malocclusion in nongrowing patients is a great challenge in treatment especially if the degree of malocclusion is severe. In such cases, the use of miniscrews for orthodontic camouflage can produce results comparable to that of orthognathic surgery. This case report presents an adult patient with severe Class II malocclusion combined with bilateral posterior crossbite, deep bite, a crowded lower arch, and a history of extraction of the lower right first molar. The treatment involved upper arch expansion by a quad helix appliance followed by the extraction of the right and left upper 1st premolars. A miniscrew-assisted straight wire technique was used to close the extraction space and reduce the overjet. Lower molar protraction was done to close the previous extraction space in the lower arch. At the end of treatment, overjet was reduced, lower arch crowding was relieved, lip competency was established, and the wide buccal corridor was reduced with a pleasing smile and normal facial proportions.
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