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Research Article Open access CC BY 4.0

Cephalometric Characteristics of Down Syndrome in Brazilian Population

Jefferson David Melo de Matos, Alerico Dias Vieira, Jéferson Martins Pereira Lucena Franco, Sérgio Eberson da Silva Maia, Natã Cavalcante Pereira, Carolina Carvalho de Oliveira Santos, Thiago Fonseca-Silva

Journal of Advances in Medicine and Medical Research · pp. 1–7 · Published 16 Aug 2016

10.9734/BJMMR/2016/28513

Abstract

Objective: This study aimed to compare cephalometric characteristics between individuals with Down syndrome (DS) and non-syndromic subjects. Methods: Teleradiography of 15 patients with Down syndrome and 15 nonsyndromic individuals matched by age and gender were analyzed. Statistical analysis was performed comparing cephalometric measurements between groups using Mann-Whitney test. Results: The analysis of measurements showed the anterior and posterior shortening of the cranial base (SN and SBa length) in individuals with DS (p<0.05). Regarding the skeletal sagittal plane, it was noticed a reduction of SNA and SNB angles in cases with DS (p<0.05). The parameters ANB, Co-A and Co-Gn of individuals with Down syndrome were significantly reduced when compared to non-syndromic individuals (p<0.05). The 1U-NA angle presented was increased in cases with DS (p=0.001). Conclusions: Individuals with Down syndrome have shortening of anterior and posterior cranial base, maxilar and mandibular retrognathia and protrusion and proclination of upper incisors.

Down syndrome cephalometrics craniofacial dental

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Paulo Victor T. Doriguêtto, Camila F. Carrada, Flávia A. R. Scalioni · International Journal of Paediatric Dentistry · 2019

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