Publication: Estudio de la influencia de la mordida cruzada posterior unilateral sobre la maduración y el desarrollo dental en niños de la Comunidad de Madrid
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2020-11-06
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Universidad Complutense de Madrid
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Abstract
El objetivo general de este estudio fue analizar la maduración y secuencia de erupción de los dientes mandibulares permanentes en pacientes infantiles en dentición mixta de primera fase y con mordida cruzada posterior unilateral aplicando el método Demirjian. Nuestra investigación se realizó sobre una muestra de 522 pacientes de origen español y sexo conocido, que se encontraban en la primera fase de dentición mixta (entre los 6 y 9 años) y que asistieron al departamento de odontopediatría de la Universidad Complutense de Madrid entre los años 2011 y 2016. Para analizar el grado de desarrollo dentario se evaluó el estadio de formación de cada pieza mandibular permanente, a excepción de los terceros molares, gracias al método de Demirjian. Se procedió a analizar el desarrollo de las piezas mandibulares permanentes y compararlas con el lado contrario gracias al método de Demirjian , tanto en el grupo de niños como en el de niñas, así como en el grupo que presentaba la mordida cruzada en el lado derecho y el que la presentó en el izquierdo. CONCLUSIONES: El método de Demirjian nos ha permitido analizar la maduración y el grado de desarrollo dentario de nuestra muestra, estableciendo la secuencia de erupción de los dientes mandibulares izquierdos. 2. El grado de maduración y desarrollo dentario de las piezas mandibulares permanentes del lado donde se encuentran la mordida cruzada es menos en comparación con la hemiarcada sin maloclusión.3. No existen diferencias estadísticamente significativas (p>0,05) al considerar el lado en el que se encuentra la mordida cruzada con la secuencia que presente el paciente (ideal o no ideal). 4. No existe evidencia de que el sexo sea una variable a considerar en la secuencia eruptiva. 5. Tanto en el grupo de niños como en el de niñas existió un alto grado de concordancia en el desarrollo dentario. las diferencias encontradas no fueron estadísticamente significativas a excepción del primer premolar (P00,038) en el grupo de niños, que presentaba un estadio de desarrollo menos en el lado con mordida cruzada...
The general aim of our investigation is to analyze the maturity and sequence of eruption of permanent mandibualr pieces formation on pediatric patients on the first stage of mixed dentition and with the presence of unilateral posterior crossbite , using the Demirjian method. Our research was carried out with an initial sample of 522 spanish boys and girls of known sex, in the first stage of mixed dentition (between 6 and 9 years of age) and who asist to pediatric department of the University Complutense of Madrid during the years 2011 and 2016. To analyze dental development degree we evaluated the formation stage of each permanent mandibular tooth, with the exception of third molars, using Demirjian method. We evaluated development of mandibular teeth and compare it with the contrary side by demirjian method, in the group of boys and in the ggirls group, and in the goup who presents the posterior crossbite in the left side, and those who present it in the right side. CONCLUSIONS:1. Demirjian method had avoid us to analyze the maturity and development degreeof our sample, establishing the eruption sequence of permanent mandibularteeth.2. The degree of maturation and dental development of the mandibular teeth on thecrossbite side is lower in comparison with healthy side.3. There is no statistical evidence (P > 0,05) about the side where the posteriorcrossbite is and the eruptive sequence (ideal or not ideal). When we comparedthe eruptive sequence of a patient, we observed that more than 90% presentedthe same sequence in both sides (1-6-2-3-4-5-7 o 6-1-2-3-4-5-7)4. There no exist evidence that sex is a determinant factor for the eruptivesequence. Results showed a few majority of non ideal sequence (1-2-6-3-4-5-7 o1-6-2-4-5-3-7) appears in the group of boys but the differences wasn’tsignificative. (P > 0.05)5. Both in the group of boys as in the group of girls, existed higher concordances indental development. The differences founded wasn’t statistical significative,with the exception in the group of boys of the first bicuspid (P = 0,038)presenting lower stage of development in the side with the maloclussion. In thegirls group the central incisor (P = 0,033) showed lower stage of development inthe crossbite side...
The general aim of our investigation is to analyze the maturity and sequence of eruption of permanent mandibualr pieces formation on pediatric patients on the first stage of mixed dentition and with the presence of unilateral posterior crossbite , using the Demirjian method. Our research was carried out with an initial sample of 522 spanish boys and girls of known sex, in the first stage of mixed dentition (between 6 and 9 years of age) and who asist to pediatric department of the University Complutense of Madrid during the years 2011 and 2016. To analyze dental development degree we evaluated the formation stage of each permanent mandibular tooth, with the exception of third molars, using Demirjian method. We evaluated development of mandibular teeth and compare it with the contrary side by demirjian method, in the group of boys and in the ggirls group, and in the goup who presents the posterior crossbite in the left side, and those who present it in the right side. CONCLUSIONS:1. Demirjian method had avoid us to analyze the maturity and development degreeof our sample, establishing the eruption sequence of permanent mandibularteeth.2. The degree of maturation and dental development of the mandibular teeth on thecrossbite side is lower in comparison with healthy side.3. There is no statistical evidence (P > 0,05) about the side where the posteriorcrossbite is and the eruptive sequence (ideal or not ideal). When we comparedthe eruptive sequence of a patient, we observed that more than 90% presentedthe same sequence in both sides (1-6-2-3-4-5-7 o 6-1-2-3-4-5-7)4. There no exist evidence that sex is a determinant factor for the eruptivesequence. Results showed a few majority of non ideal sequence (1-2-6-3-4-5-7 o1-6-2-4-5-3-7) appears in the group of boys but the differences wasn’tsignificative. (P > 0.05)5. Both in the group of boys as in the group of girls, existed higher concordances indental development. The differences founded wasn’t statistical significative,with the exception in the group of boys of the first bicuspid (P = 0,038)presenting lower stage of development in the side with the maloclussion. In thegirls group the central incisor (P = 0,033) showed lower stage of development inthe crossbite side...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Odontología, leída el 14-02-2020