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Master Thesis

Hypercémentose : détermination de la fréquence et des étiologies dans un échantillon français contemporain

Abstract : Hypercementosis is a cementum hyperplasia. Its radiological definition criteria, its frequency and its etiologies have rarely been studied. The aim of our study is to provide answers to these issues. Materials & Methods: 342 individuals were randomly selected in the dentistry department of the university hospital of Xavier arnozan (Pessac – Gironde). Then, their panoramic radiograph was examined at different times to develop defining criteria, to assess the frequency of hypercementosis based on individuals and teeth, and to check the influence of some local and general diseases . Results: At the end of our study, different definition criteria were first developed and validated statistically (k intraobserver = 0,84 ; k interobserver = 0,94). Our results show that the frequency of the hypercementosis in our sample is 10.53% among individuals and 0.66% from the teeth (essentially molars and premolars ). It significantly increases with age, but not significantly different by gender. Furthermore , apical periodontitis , periodontal disease , tooth eruption and hyperthyroidism are significantly more frequent on hypercementosed teeth as those that are not. This calls for their involvement in the genesis of hypercementosis. Dental inclusion, sometimes described in the literature as a etiologic factor does not seem involved in our sample. Conclusion: Hypercementosis is rarely studied and its meaning is not fully understood. The study we conducted on a large contemporary french sample helped to provide answers to some questions, but it also induces new ones. Further studies should be conducted to better understand hypercementosis and dynamic deposit of the cementum.
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Master Thesis
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Submitted on : Monday, March 21, 2016 - 4:16:16 PM
Last modification on : Wednesday, January 15, 2020 - 9:03:57 AM
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Simon Dassé. Hypercémentose : détermination de la fréquence et des étiologies dans un échantillon français contemporain. Chirurgie. 2016. ⟨dumas-01291551⟩

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