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What Factors Are Associated With Impacted Canines in Cleft Patients?
Umeå University, Faculty of Medicine, Department of Odontology.
2014 (English)In: Journal of oral and maxillofacial surgery (Print), ISSN 0278-2391, E-ISSN 1531-5053, Vol. 72, no 11, 2109-2114 p.Article in journal (Refereed) Published
Abstract [en]

Purpose: It is important to predict and prevent the impaction of canines. The aim of this study was to estimate the prevalence of impacted canines in patients with unilateral cleft lip and palate (UCLP) and to identify factors associated with impaction. Materials and Methods: This retrospective cohort study included patients with nonsyndromic UCLP. The predictors were pre-eruptive inclination angle, deviation in tooth number (agenesis or supernumerary lateral incisors), and reoperation of bone transplant. The outcome variable was impacted and surgically exposed canines. Results: The prevalence of impacted and surgically exposed canines in the 68 consecutive patients with UCLP was 20.6%. The pre-eruptive inclination angle was significantly larger (34.4 degrees) for the impacted canines on the cleft side compared with the spontaneously erupted canines on the cleft and non-cleft sides (25.5 degrees vs 15.4; P < .05). Reoperation of the bone transplant significantly increased canine impaction (50%; P < .05). Conclusion: The eruption of maxillary canines needs to be supervised carefully in patients with UCLP, because the prevalence of impaction is 10 times higher compared with the general population. Factors associated with canine impaction are a pre-eruptive inclination larger than 30 degrees and reoperation of the bone transplant.

Place, publisher, year, edition, pages
2014. Vol. 72, no 11, 2109-2114 p.
National Category
URN: urn:nbn:se:umu:diva-97598DOI: 10.1016/j.joms.2014.05.030ISI: 000345224800012OAI: diva2:775090
Available from: 2014-12-30 Created: 2014-12-23 Last updated: 2014-12-30Bibliographically approved

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Sjöström, Mats
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