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The prevalence of various dental characteristics in the primary and mixed dentition in patients born with non-syndromic unilateral cleft lip with or without cleft palate
Dental Medicine, Division of Orthodontics and Pediatric Dentistry, Section for Jaw Orthopaedics, Karolinska Institutet, Stockholm .
2012 (English)In: European Journal of Orthodontics, ISSN 0141-5387, E-ISSN 1460-2210, Vol. 34, no 5, 561-570 p.Article in journal (Refereed) Published
Abstract [en]

This retrospective study was carried out on consecutively collected dental casts, x-rays, and photos of 129 Swedish children who had been born with non-syndromic unilateral (U) cleft lip (CL), cleft lip and alveolus (CLA), or cleft lip and palate (CLP). The following dental characteristics were investigated in the primary and permanent dentitions: 1. the presence, eruption, position, and shape of the lateral incisor; 2. the prevalence of rotation and enamel hypoplasia of the permanent central incisor; 3. the occurrence of hypodontia outside the cleft region; and 4. the transition from the primary to the succeeding permanent lateral incisor in the cleft region. Patients with clefts involving the palate (UCLP) exhibited a high frequency of hypodontia. In patients with clefts, which did not include the palate, malformed lateral incisors were a common finding. In the primary and permanent dentition, the lateral incisor had erupted distal to the cleft in 31.8 and 24.8 per cent of the UCLA and UCLP patients, respectively. No significant pattern was seen regarding the transition from the primary to the succeeding permanent lateral incisor (P = 0.15). The central incisor was rotated in 55 per cent of the patients and this positional deviation was particularly frequent in cases where the lateral incisor was missing in the premaxilla (P < 0.05). Hypodontia outside the cleft region was recorded in 15.5 per cent of the patients. Patients with UCLP had more often crossbite than patients with a UCL or a UCLA phenotype (P < 0.001).

Place, publisher, year, edition, pages
2012. Vol. 34, no 5, 561-570 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-197810DOI: 10.1093/ejo/cjr074PubMedID: 21750243OAI: oai:DiVA.org:uu-197810DiVA: diva2:614331
Available from: 2013-04-04 Created: 2013-04-04 Last updated: 2013-04-04Bibliographically approved

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