Predisposing factors for malocclusion in 7-year-old children; with special reference to atopic diseases

Anterior Crossbite Correction in Early Mixed Dentition Period Using Catlan's Appliance: A Case Report

“…Anterior dental crossbite has a reported incidence of 4-5% and usually becomes evident during the early mixed-dentition phase [12, 13]. The anterior crossbite may result from variety of factors such as lingual eruption path of the maxillary anterior incisors; a repaired cleft lip; trauma to the primary incisor resulting in lingual displacement of the permanent tooth germ; supernumerary anterior teeth; an over-retained necrotic or pulpless deciduous tooth or root; odontomas; crowding in the incisor region; inadequate arch length; a habit of biting the upper lip [9, 10, 12–15].…”

Posterior Crossbite and Functional Changes

“…Such a reduction can be induced by finger sucking, 3,5,6 certain swallowing habits, 5 or obstruction of the upper airways caused by adenoid tissues or nasal allergies. 6,7 Because spontaneous correction is rare, 1 posterior crossbite is believed to be transferred from primary to permanent dentition, with long-term effects on the growth and development of the stomatognathic system. 8,9 The condyles on the crossbite side are positioned relatively more superiorly and posteriorly in the glenoid fossa than those on the noncrossbite side.…”

Caractéristiques occlusales des enfants présentant des végétations hypertrophiées au Nigéria

“…However, it has been reported that class II malocclusion is somewhat more commonly associated with patients with hypertrophied adenoids [3,7,17,18]. In another study of 7-year-olds with atopic (allergic) diseases, mouth-breathers had significantly more class II and cusp-to-cusp sagittal molar relationships compared with the nose-breathers [19]. Mouth breathing allergic children have been shown to have narrower maxillary arches compared with nose-breathers [13].…”