comparación cefalométrica entre sujetos con oclusión normal y clase ii división 1 cephalometric comparison between subjects with normal occlusion and with class ii division 1 malocclusion
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ID: 229269
2004
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Abstract
El propósito de este estudio fue comparar los valores cefalométricos de las estructuras dentomaxilofaciales de tipo esqueletal, dentoalveolar y tejidos blandos, en una muestra de 40 niños mexicanos no tratados (20 oclusión normal y 20 clase II división l), entre las edades de 9-14 años, de ambos sexos. Se utilizó para su evaluación el cefalograma de Clark W. En el análisis esqueletal no se encontraron diferencias significativas en las bases craneales de ambos grupos; sin embargo, el ángulo del eje condíleo disminuyó su valor en los clase ll (p<0,0041), y se observó también una marcada diferencia (p<0,000) en el ángulo ANB, debido fundamentalmente a la posición retrognática de la mandíbula. Dentalmente ambos grupos se mostraron biprotusivos, que resultó más marcado en el grupo de clase ll. En las mediciones lineales se presentaron diferencias entre los grupos: la longitud mandibular (p<0,003) y la longitud del cuerpo mandibular (p<0,0001) se ubicaron con valores menores en los sujetos de clase ll división 1.
The aim of this study was to compare cephalometric measurements of tooth and maxillofacial structures, ie, skeletal, dentoalveolar and soft tissue, in a sample of 40 Mexican untreated children aged 9-14 years of both sexes (20 with normal occlusion and 20 with class II division I malocclusion. Clark´s cephalogram was used in the evaluation. The skeletal analysis did not show any significant differences in cranial bases of both groups; however, condylar axis angle values decreased in Class II group (p< 0.0041. A marked difference was also observed in ANB angle (P< 0.000) fundamentally caused by the retrognatic position of the jaw. From the dental viewpoint, both groups showed dentoalveolar biprotusion, but more pronounced in Class II group. The linear measurements showed no differences between the groups; mandibular length (p< 0,003) and mandibular body length (p<0,001) had smaller values in Class II division 1 subjects.
The aim of this study was to compare cephalometric measurements of tooth and maxillofacial structures, ie, skeletal, dentoalveolar and soft tissue, in a sample of 40 Mexican untreated children aged 9-14 years of both sexes (20 with normal occlusion and 20 with class II division I malocclusion. Clark´s cephalogram was used in the evaluation. The skeletal analysis did not show any significant differences in cranial bases of both groups; however, condylar axis angle values decreased in Class II group (p< 0.0041. A marked difference was also observed in ANB angle (P< 0.000) fundamentally caused by the retrognatic position of the jaw. From the dental viewpoint, both groups showed dentoalveolar biprotusion, but more pronounced in Class II group. The linear measurements showed no differences between the groups; mandibular length (p< 0,003) and mandibular body length (p<0,001) had smaller values in Class II division 1 subjects.
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barraza2004revistacomparacin
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| Authors | ;María de Lourdes Verdugo Barraza |
| Journal | nature genetics |
| Year | 2004 |
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