Publication: Análisis de las anchuras percibidas y las proporciones estéticas de los dientes maxilares en pacientes tratados con ortodoncia. Influencia de la forma de arcada
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2019-04-23
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Universidad Complutense de Madrid
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Abstract
Las proporciones objetivas de los dientes anteriores maxilares y su percepción subjetiva por el observador tienen una gran repercusión en la estética de la sonrisa, lo que justifica tratar de obtener guías terapéuticas a ese respecto aplicables en la práctica clínica. La definición de una proporción estética válida y su posible variabilidad con la forma de arcada de cada paciente, junto con el análisis comparativo de determinadas proporciones descritas en la literatura, justificaba emprender esta investigación.Objetivos: Definir la proporción estética de los dientes maxilares en una muestra de pacientes tratados con aparatología fija multibrackets. Examinar el porcentaje de exposición de los seis dientes anterosuperiores. Evaluar la variabilidad de la proporción áurea, y del porcentaje áureo. Evaluar las posibles diferencias entre sexos en las anchuras percibidas, proporciones estéticas, porcentaje de exposición y prevalencia de proporción áurea. Analizar la posible relación entre anchuras percibidas, proporciones estéticas y porcentaje de exposición en función de la forma de arcada (ovoide, estrecha y cuadrangular), así como la eventual asociación de la proporción áurea con una forma de arcada determinada...
The relationship between maxillary aesthetic tooth proportions and its subjective perception has an impact on the smile aesthetics, which justifies the efforts to obtain clinical guidelines for the clinical practice. This study searches to determine a correct aesthetic proportion according to the arch form of every patient and also to analyse the variability of the proportion obtained with others previously described in the literature.Objectives: Determine the maxillary aesthetic tooth proportion in an orthodontically treated population. Examine the exhibition percentage of the anterior maxillary dentition. Evaluate the existence of golden proportion and golden percentage of the sample. Investigate the sex differences in perceived widths, aesthetic proportion, exhibition percentage and prevalence of golden proportion. Analyse the relationship between perceived tooth widths, aesthetic proportion, and exhibition percentage according to the arch form (ovoid, square or tapered). Investigate the possible association between a specific arch form and Golden proportion.Material and method: This research is an observational descriptive study of prevalence. One hundred and forty Caucasian patients (59 males and 81 females) treated with fixed orthodontic appliances at the Fundación Jiménez Diaz Hospital Orthodontic Unit, were examined. The inclusion criteria were: complete tooth alignment, correct occlusion (molar and canine Class I, 1/3 overbite, 1-3mm of overjet, absence of posterior crossbite or scissor bite, flat curve of Spee), intact transverse morphology of the front maxillary teeth, centred midlines and symmetric arches...
The relationship between maxillary aesthetic tooth proportions and its subjective perception has an impact on the smile aesthetics, which justifies the efforts to obtain clinical guidelines for the clinical practice. This study searches to determine a correct aesthetic proportion according to the arch form of every patient and also to analyse the variability of the proportion obtained with others previously described in the literature.Objectives: Determine the maxillary aesthetic tooth proportion in an orthodontically treated population. Examine the exhibition percentage of the anterior maxillary dentition. Evaluate the existence of golden proportion and golden percentage of the sample. Investigate the sex differences in perceived widths, aesthetic proportion, exhibition percentage and prevalence of golden proportion. Analyse the relationship between perceived tooth widths, aesthetic proportion, and exhibition percentage according to the arch form (ovoid, square or tapered). Investigate the possible association between a specific arch form and Golden proportion.Material and method: This research is an observational descriptive study of prevalence. One hundred and forty Caucasian patients (59 males and 81 females) treated with fixed orthodontic appliances at the Fundación Jiménez Diaz Hospital Orthodontic Unit, were examined. The inclusion criteria were: complete tooth alignment, correct occlusion (molar and canine Class I, 1/3 overbite, 1-3mm of overjet, absence of posterior crossbite or scissor bite, flat curve of Spee), intact transverse morphology of the front maxillary teeth, centred midlines and symmetric arches...
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Tesis inédita de la Universidad Complutense de Madrid de la Facultad de Odontología. Departamento de Especialidades Clínicas Odontológicas, leída el 29-11-2018