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Associação da morfologia das vértebras cervicais por meio de telerradiografias laterais com as diferentes etapas do surto de crescimento pubertário / Association of cervical vertebra morphology with the different stages of the pubertal growth spurt by means of lateral teleradiographs
Mendes, Leonardo Santiago; Junqueira, Jussara Moreira Passos Cintra; Hofling, Roberta Tarkany Basting.
  • Mendes, Leonardo Santiago; São Leopoldo Mandic. Centro de Pesquisas Odontológicas. Campinas. BR
  • Junqueira, Jussara Moreira Passos Cintra; São Leopoldo Mandic. Centro de Pesquisas Odontológicas. Campinas. BR
  • Hofling, Roberta Tarkany Basting; São Leopoldo Mandic. Centro de Pesquisas Odontológicas. Campinas. BR
Ortodontia ; 40(1): 27-33, jan.-mar. 2007. ilus, tab
Article in Portuguese | LILACS, BBO | ID: lil-542765
RESUMO
O presente trabalho avaliou a associação entre o formato anatômico e as concavidades das bordas superior e inferior das vértebras cervicais em telerradiografias laterais com a fase de crescimento puberal. Foram selecionadas 75 radiografias carpais e 75 telerradiografias dos mesmos indivíduos (média de idade de 11,7 anos) que iriam se submeter a tratamento ortodôntico, divididas em três grupos (n=25) que se encontravam nas fases inicial (G1), pico (FPcap) e final (FDut) do surto de crescimento puberal respectivamente, de acordo com a Curva Padrão de Velocidade de Crescimento Estatural, proposta por Martins (1979). Foram feitas análises dos formatos e concavidades das bordas superior e inferior das vértebras C2, C3 e C4 e comparação entre as idades cronológicas nas diferentes fases da curva de velocidade de crescimento. Os resultados obtidos revelaram que a medida em que a idade aumenta, o índice de Maturação das Vértebras Cervicais também aumenta e que no início do surto de crescimento puberal, as vértebras C3 e C4 apresentam o formato trapezoidal, mudando progressivamente para o formato quadrado ao atingir o pico de crescimento e, finalmente, tomar uma forma retangular no final do surto de crescimento puberal. Quanto as concavidades das bordas inferiores das três vértebras cervicais estudadas e das bordas superiores de C3 e C4, geralmente se apresentam planas no início do surto, com curvatura leve no pico e com curvatura acentuada no final do surto de crescimento puberal.
ABSTRACT
The present study assessed the association between the anatomic shape and the concavities of the superior and inferior edges of cervical vertebrae in lateral teleradiographs in the puberal growth phase. A selection was mude of (75) carpa1 radiographs and 75 teleradiographs of the same individuals, (mean age 11.7 years), who were going to be submitted to orthodontic treatment.They were divided into three p u p s (n=25) which were in the initial (G1), peak (FPcap) andjnal (FDut) phases of the puberal growth spurt respectively, in accordance with the Standard Statural Speed of Growth Curve, proposed by Martins (1979). The shapes and concavities of the superior and inferior edges of vertebrae C2, C3 ad C4 were analyzed and compared among the chronological ages in the different phases of the Speed of Growth Curve. The results obtained revealed that as age increases, the Cervical Vertebra Maturation Index also increases. and that at the beginning of the puberal growth spurt, the vertebrae C3 and C4 presented a trapezoidal shape, and progressively changed to a square shape when the peak of growthwas attained, andjnaliy, took on a rectangular shape at the end of the puberal growth spurt. With regard to the concavities of the inferior edges of the three cervical vertebrae studied, and the superior edges of C3 and C4, they generally presented as flat at the beginning of the spurt, with slight curvature at the peak, and with accentuated curvature at the end of the puberal growth spurt.
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Index: LILACS (Americas) Main subject: Bone Development / Cervical Vertebrae / Puberty Type of study: Diagnostic study / Risk factors Limits: Adolescent / Child / Female / Humans / Male Language: Portuguese Journal: Ortodontia Journal subject: Dentistry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: São Leopoldo Mandic/BR

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Index: LILACS (Americas) Main subject: Bone Development / Cervical Vertebrae / Puberty Type of study: Diagnostic study / Risk factors Limits: Adolescent / Child / Female / Humans / Male Language: Portuguese Journal: Ortodontia Journal subject: Dentistry Year: 2007 Type: Article Affiliation country: Brazil Institution/Affiliation country: São Leopoldo Mandic/BR