Transverse Asymmetries of the Maxilla Even in Healthy and Apparently Symmetrical Subjects

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Abstract

Abstract: In the formulation of an orthodontic treatment plan, the three-dimensional analysis ofthe dental arches represents a fundamental moment for the evaluation of all the morphologicalparameters necessary in order to have a correct and complete diagnosis. In this regard, the studyof the dental arches on the horizontal plane is sometimes neglected or not thorough enough. Whenevaluating the transverse dimensions of the dental upper arche, the presence of an asymmetry isfrequently found, and it means that an hemiarch is larger than the other. Furthermore, any variationin one of the three planes of space always involves an alteration also on the other two planes inorder to have compensation. The morphology of a bone segment depends on various factors, mainlygenetical, acquired and environmental. Regarding the environmental factors, the function determinesthe morphology, but this in turn determines the function. In the case of unilateral mastication, theupper maxilla will be asymmetrical, so growing patients will have compensation on other skull bones.From these considerations arises the need for a careful study of the horizontal plane of the maxilla inthe presence of a malocclusion during diagnostic evaluations. These asymmetries, however, must beevaluated and quantified in the diagnostic phase in order to formulate a correct plan of treatment.The aim of this work is to demonstrate that there are almost always transverse asymmetries of themaxilla, albeit of a slight entity, even in healthy and apparently symmetrical subjects.
Lingua originaleEnglish
Numero di pagine17
RivistaInternational Journal of Environmental Research and Public Health
Volume18
Stato di pubblicazionePublished - 2021

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