Correlación entre la variación del eje incisal inferior con el plano mandíbular y los milímetros de variación incisal en el plano oclusal
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Fecha
2013
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Profesor/a Guía
Facultad/escuela
Idioma
es
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Universidad Andrés Bello
Nombre de Curso
Licencia CC
Licencia CC
Resumen
La posición vestíbulo-lingual de los incisivos afecta la correcta oclusión, concierne la estética facial anteroinferior, el funcionamiento de los labios y la estabilidad postratamiento entre otros.
Es necesario antes de desplazar los bordes incisales en sentido vestibular-lingual, saber la relación con la angulación de los mismos, con el fin de manejar la variación correspondiente en el arco dental, sin
discrepancias de espacio clínicos no esperados pudiendo alterar el tratamiento ortodóncico.
Este estudio descriptivo propone una fórmula matemática geométrica - algebraica para calcular con mayor exactitud la cantidad de movimiento vestíbulolingual en milímetros del eje axial del incisivo central inferior respecto al plano oclusal, al angular de forma determinada el eje axial del incisivo central inferior respecto al
plano mandibular visto en cefalometría. Se usaron medidas estandarizadas en análisis
cefalométricos de varios autores. Se realizaron 104 cálculos, usando 5 longitudes del eje incisal inferior a distintas angulaciones, como resultado aumentó el desplazamiento en milímetros del eje incisal inferior respecto al plano oclusal a medida que aumentó la longitud del eje incisal inferior, visto más en características
dolicofaciales respecto a braquifaciales. Se encontró un coeficiente de correlación estadístico de Pearson de 0,999 en todos los cálculos lo que indica una correcta relación entre las variables usadas. Además se encontró una constante matemática específica de desplazamiento al angular una determinada longitud del eje incisal inferior. Se concluye que si existe una relación matemática entre el ángulo formado por
el plano mandibular y el eje incisivo central inferior y la variación en milímetros del borde incisal en el plano oclusal diferente en características dolicofaciales y braquifaciales. Ya que cada característica de biotipo posee una constante matemática.
The vestibular-lingual position of incisors affects the proper occlusion, concerns the esthetic facial height, the correct functional of the lips and stability between others. Befare the treatment is necessary to know the relation between the movement of incisal edges in vestibular - lingual direction and the angulation, in arder to handle the corresponding variation in the dental arch, without clinical unexpected space discrepancies that may alter orthodontic treatment. This descriptive study propases a mathematical geometric - algebraic formula to calculate more accurately the amount of vestibular-lingual movement's in millimeters of the axial shaft of the lower central incisor, in comparative to the occlusal plane and the angle of the axial shape of the lower central incisor compared with the mandibular plane , analizated in cephalometric. Performed based on standardized measures of several cephalometric's authors analysis , 104 calculations were performed using 5 incisal shaft lengths at different angles less as a result increased the displacement in millimeters of the shaft bottom in relate to the occlusal plane with increasing length of the lower incisor axis , seen in dolicofacial more than in the brachyfacial characteristics . Found a statistic correlation coefficient of pearson of 0.999 for all calculations indicating a correct relationship between the variables used. Also found a specific mathematical constant of displacement for each lower incisor axis length. Conclude that there is a mathematical relationship between the angle formed by the mandibular plane and the lower central incisor axis, and the variation in millimeters from the incisa! edge in the occlusal plane that is different in brachyfacial and dolicofacial characteristics. lts suggested to prove the method based on clinical application.
The vestibular-lingual position of incisors affects the proper occlusion, concerns the esthetic facial height, the correct functional of the lips and stability between others. Befare the treatment is necessary to know the relation between the movement of incisal edges in vestibular - lingual direction and the angulation, in arder to handle the corresponding variation in the dental arch, without clinical unexpected space discrepancies that may alter orthodontic treatment. This descriptive study propases a mathematical geometric - algebraic formula to calculate more accurately the amount of vestibular-lingual movement's in millimeters of the axial shaft of the lower central incisor, in comparative to the occlusal plane and the angle of the axial shape of the lower central incisor compared with the mandibular plane , analizated in cephalometric. Performed based on standardized measures of several cephalometric's authors analysis , 104 calculations were performed using 5 incisal shaft lengths at different angles less as a result increased the displacement in millimeters of the shaft bottom in relate to the occlusal plane with increasing length of the lower incisor axis , seen in dolicofacial more than in the brachyfacial characteristics . Found a statistic correlation coefficient of pearson of 0.999 for all calculations indicating a correct relationship between the variables used. Also found a specific mathematical constant of displacement for each lower incisor axis length. Conclude that there is a mathematical relationship between the angle formed by the mandibular plane and the lower central incisor axis, and the variation in millimeters from the incisa! edge in the occlusal plane that is different in brachyfacial and dolicofacial characteristics. lts suggested to prove the method based on clinical application.
Notas
Tesis (Odontología)
Palabras clave
Oclusión Dental, Fisiología del diente, Estética facial