Pseudo-Class III malocclusion is characterized by the presence of an anterior crossbite due to a forward functional displacement of\nthemandible; in most cases, the maxillary incisors present some degree of retroclination, and themandibular incisors are proclined.\nVarious types of appliances have been described in the literature for the early treatment of pseudo-Class III malocclusion. The\nobjectives of this paper are to demonstrate the importance of making the differential diagnosis between a skeletal and a pseudo-\nClass III malocclusion and to describe the correction of an anterior crossbite. The association of maxillary expansion and a 2 Ã?â?? 4\nappliance can successfully be used to correct anterior crossbites
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