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Scandcleft randomized trials of primary surgery for unilateral cleft lip and palate. Dental arch relationships in 8 year-olds.
Cleft Palate and Craniofacial Center, Department of Plastic Surgery, Helsinki University Hospital, Finland.
Department of Plastic and Reconstructive Surgery, Oslo University Hospital Rikshospitalet, Norway.
Cleft Palate Center and University Hospital Aarhus and University of Aarhus, Denmark.
Dental School, University of Manchester, UK.
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2019 (English)In: European Journal of Orthodontics, ISSN 0141-5387, E-ISSN 1460-2210Article in journal (Refereed) Epub ahead of print
Abstract [en]

Background and Trial Design: The Scandcleft intercentre study evaluates the outcomes of four surgical protocols for treatment of children with unilateral cleft lip and palate (UCLP). Originally 10 cleft centres in Denmark, Finland, Norway, Sweden, and the UK participated in a set of three randomized trials of primary surgery. Three groups of centres (Trials 1, 2, and 3) tested their traditional local surgical protocols (Arms B, C, and D) against a common protocol (Arm A).less thanbr /greater thanObjectives: To evaluate dental arch relationships at age 8 years after four different protocols of primary surgery for UCLP. These results are secondary outcomes of the overall trial.less thanbr /greater thanMethods: Study models of 411 children (270 boys, 141 girls) with non-syndromic UCLP at a mean age of 8.1 (range 7.0-10.0) years were available. Dental arch relationships were analysed using the GOSLON Yardstick by a blinded panel of 11 orthodontists. To assess reliability, Kappa statistics were calculated. The trials were tested statistically with t-tests.less thanbr /greater thanResults: Comparisons within each trial showed no statistically significant differences in the mean 8-year index scores or their distributions between the common protocol and the local team protocol. The mean index scores were Trial 1: Arm A 3.03, Arm B 2.82, Trial 2: Arm A 2.78, Arm C 2.64, and Trial 3: Arm A 3.06, Arm D 3.08. Comparisons between the trials detected a significantly (P less than 0.005) better mean index score Trial 2 Arm C than in Trial 3 Arm D. The intra- and inter-rater reliabilities were acceptable.less thanbr /greater thanConclusion: The results of these three trials do not provide evidence that one surgical protocol is better than the others.less thanbr /greater thanTrial Registration: ISRCTN29932826.less thanbr /greater than (© The Author(s) 2019. Published by Oxford University Press on behalf of the European Orthodontic Society. All rights reserved. For permissions, please email: journals.permissions@oup.com.)

Place, publisher, year, edition, pages
2019.
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Dentistry
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URN: urn:nbn:se:liu:diva-161509DOI: 10.1093/ejo/cjz067PubMedID: 31579909OAI: oai:DiVA.org:liu-161509DiVA, id: diva2:1367410
Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2019-11-04

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Marcusson, Agneta

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Division of Surgery, Orthopedics and OncologyFaculty of Medicine and Health SciencesMaxillofacial Unit
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