Influencia de las técnicas roth y mbt en el paralelismo entre el eje axial del incisivo superior y el eje facial de crecimiento, descrito en el cefalograma de Ricketts al finalizar el tratamiento de ortodoncia en pacientes atendidos en la clínica de ortodoncia de la Universidad de Guayaquil, año lectivo 2013 – 2015
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2016-08-03
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Universidad de Guayaquil. Facultad Piloto de Odontología. Escuerla de Postgrado "Dr. José Aplo Pineda"
Resumen
Ya señalaba Ricketts en su cefalograma que la inclinación ideal del incisivo superior, corresponde al paralelismo o a una angulación de su eje 5° más vertical que el Eje Facial, obteniendo como resultado la estabilidad post tratamiento ortodoncia. El objetivo de esa investigación fue el de determinar la influencia de las técnicas Roth y MBT en el paralelismo entre el Eje Axial del Incisivo Superior y el Eje Facial de Crecimiento, descrito en el Cefalograma de Ricketts al finalizar el tratamiento de ortodoncia. Se analizaron 20 sujetos que culminaron el tratamiento de ortodoncia, en 10 de ellos se empleó la técnica Roth mientras que en los otros 10 pacientes se utilizó la técnica MBT. Los parámetros que se tomaron en cuenta en este estudio fueron: Tratamiento de Ortodoncia con o sin extracciones y pacientes diagnosticados con clase esquelética I y II.
Se examinaron las radiografías cefalométricas iniciales y finales de estos pacientes, se midió el ángulo formado por la base del cráneo con el plano del Eje Facial y con el Plano del Eje Axial del Incisivo Superior, respectivamente; y luego se obtuvo la diferencia entre ambos ángulos.
Al final del estudio se concluyó que se obtiene mayor estabilidad con la Técnica MBT en los casos donde se realizaron exodoncias y en pacientes previamente diagnosticados con clase esquelética II. A pesar de este resultado, no se encontró una diferencia estadísticamente significativa sobre qué técnica genera mayor estabilidad después del tratamiento.
Palabras claves: Paralelismo, Eje Facial de Crecimiento, Eje Axial del Incisivo Superior, Técnica Roth, Técnica MBT.
Ricketts already indicated in its cephalogram that the ideal upper incisor inclination corresponds to a parallelism or the inclination of its axis 5 ° more vertical than the Facial Axis, resulting stability after orthodontic treatment. The purpose of this research was to determine the influence of Roth and MBT techniques in the parallelism between the Upper Incisor Axis and the Facial Axis, described in Ricketts cephalogram at the end of orthodontic treatment. Twenty subjects who completed the orthodontic treatment were analyzed, 10 of them used the Roth technique while in the other 10 patients the MBT technique was used. The parameters that were taken into account in this study were: orthodontic treatment with or without extractions and patients diagnosed with skeletal class I and II. Both, initial and final Lateral cephalometric radiographs of these patients were examined, the angle formed by the Base Plane with the Facial Axis and the Upper Incisor Axis, respectively was measured,; and at that point the difference between both angles was obtained. At the end of the study it concluded that greater stability is obtained with the MBT Technique in cases where extractions were performed and patients previously diagnosed with skeletal Class II. Despite this result, no statistically significant difference on which technique generates greater stability after treatment was found. Keywords: Parallelism, Facial Axis, Upper Incisor Axis, Roth Technique, MBT Technique.
Ricketts already indicated in its cephalogram that the ideal upper incisor inclination corresponds to a parallelism or the inclination of its axis 5 ° more vertical than the Facial Axis, resulting stability after orthodontic treatment. The purpose of this research was to determine the influence of Roth and MBT techniques in the parallelism between the Upper Incisor Axis and the Facial Axis, described in Ricketts cephalogram at the end of orthodontic treatment. Twenty subjects who completed the orthodontic treatment were analyzed, 10 of them used the Roth technique while in the other 10 patients the MBT technique was used. The parameters that were taken into account in this study were: orthodontic treatment with or without extractions and patients diagnosed with skeletal class I and II. Both, initial and final Lateral cephalometric radiographs of these patients were examined, the angle formed by the Base Plane with the Facial Axis and the Upper Incisor Axis, respectively was measured,; and at that point the difference between both angles was obtained. At the end of the study it concluded that greater stability is obtained with the MBT Technique in cases where extractions were performed and patients previously diagnosed with skeletal Class II. Despite this result, no statistically significant difference on which technique generates greater stability after treatment was found. Keywords: Parallelism, Facial Axis, Upper Incisor Axis, Roth Technique, MBT Technique.
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TECNICA ROTH, TECNICA MBT, CEFALOMETRIA