Micro-scanner et dens in dente radiculaire

Abstract : Dens in dente, or dens invaginatus, is a developmental malformation, resulting from an infolding of enamel and dentin into the dental papilla. The extent of invagination depends on the severity of affection. The invagination may occupy the crown or the root. The general prevalence is from 0,04 to 10%. The maxillary lateral incisor is the most common site of occurrence. The discovery is often fortuitous. The anatomical complexity of this anomaly requires a CBCT to determine a treatment plan. There are several hypotheses about the main etiology, but no consensus can be reached. We report the case of a young patient who presents a dens in dente in left mandibular first premolar, which was extracted for orthodontic reasons. We have carried out a detailed analysis using the X-ray micro-tomography and the Image J software. Our objective was to identify the different components of invagination, to analyze its connection to the affected tooth and to understand the pathogenic mechanisms of this abnormality. We assume that dens in dente results from a troubled gene expression, which may explain its presence within the same family and at the same time, on the same tooth with other abnormalities. Studies are needed to conclude.
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Submitted on : Thursday, January 31, 2019 - 11:48:04 AM
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  • HAL Id : dumas-02000692, version 1

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Senel Carpar. Micro-scanner et dens in dente radiculaire. Sciences du Vivant [q-bio]. 2019. ⟨dumas-02000692⟩

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