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Rev. cient. odontol ; 6(1): 63-71, ene.-jun. 2018. ilus, tab
Article in Spanish | LILACS | ID: biblio-998749

ABSTRACT

Objetivo: Identificar los valores del ángulo de convexidad facial (ACF), el ángulo de convexidad facial total (ACFT), la posición maxilar (Gl-Sn(PH)) y la posi- ción mandibular (Gl-Pog(PH)) en el perfil facial blando de niños de entre 3 y 5 años. Materiales y métodos: Se trata de un estudio transversal que incluyó 119 niños y niñas de dos nidos de Lima (Perú), a quienes se les examinó y tomó fotogra- fías del perfil. Con el programa Plan- meca®, se evaluaron los dos ángulos y las dos medidas lineales. Se realizaron asociaciones mediante la prueba Chi cuadrado y se compararon los promedios entre géneros con la prueba T-Student, y entre el grupo etario, el plano de termi- nación molar y la relación canina con la prueba Anova. Resultados: Los valores promedio fueron ACF = 165,89º ±4,57, ACFT = 144,18º ±4,31, Gl-Pog(PH) = -14,05 mm ±5,07 y Gl-Sn(PH) = -2,53mm ±3,4. Se encontró una diferencia significa tiva según género y Gl-Sn(PH). Conclusiones: Se halló mayor convexidad facial en los niños que en las niñas, aunque sin diferencia significativa. Los niños presen- taron mayor protrusión maxilar, lo que explica su mayor convexidad. Los valores obtenidos fueron distintos a los de otros grupos étnicos. Además, se observó que la velocidad de crecimiento de los niños peruanos es más lenta que la de otras poblaciones. (AU)


Objective: To evaluate the Facial convexity angle (FCA), Total facial convexity angle (TFCA), Maxilla position (Gl-Sn(PH)) and Jaw position (Gl-Pog ́(PH)) of soft-tissue profile in children aged between 3-5 years of age. Materials and methods: A cross-sectional study involving 119 children of both genders from two kindergartens, Lima-Peru, who were examined and from whom profile photo-graphs were obtained. The Planmeca® program was used to evaluate two angles and two linear measurements. Associa-tions were tested using the Chi square test, averages between genders were assessed using the Student's t-test, and between age, primary molar relationship and primary canine relationship using the Anova test. Results: The average values were fca=165.89º ±4.57, tfca= 144.18º ±4.31, gl-pog ́(ph)= -14mm ±5.07 and Gl-Sn(PH)=-2.5mm ±3.4. Differences between gender and Gl-Sn(PH) groups were statistically significant. Conclu-sions: It was found that males exhibited a more convex facial profile than females, while this finding was not statistically significant; however, males exhibited the maxilla in a more forward position, and this finding was statistically significant. The values found were not the same as those found in other ethnic groups; it was also observed that rate of growth in Peruvian children is slower than in other populations. (AU)


Subject(s)
Humans , Male , Female , Child, Preschool , Vertical Dimension , Child, Preschool , Facial Asymmetry
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