Background:Dentinogenesis imperfecta is a genetic disorder of the dentin occurring during the tooth development. It leads to many structural changes that can be identified clinically (brownish colored teeth, cracked enamel) and radiologically (globular crown, cervical constriction, short roots, and obliterated pulp chamber and/or root canals). The aim of this study was to determine by panoramic radiographs assessment the incidence of dentinogenesis imperfecta in a group of patients attending a specialized maxillofacial imaging center in Paris, France.Material and Methods:A retrospective observational study was conducted using panoramic radiographs of 8830 patients (3723 males and 5107 females), which were used to search the radiological criteria of dentinogenesis imperfecta.Results:In our sample, the prevalence of dentinogenesis imperfecta was 0.057%. Out of the 8830 subjects, 0.080% of the males presented the radiological signs of the dentinogenesis imperfecta against 0.039% of the females.Conclusion:In our study, we found that dentinogenesis imperfecta is a relatively rare dental anomaly in France, with a rate different from the rates reported in other studies and with no disparity in prevalence among genders.
Actuellement, la tomographie volumique numérisée à faisceau conique est couramment prescrite pour la localisation des canines incluses maxillaires. Elle permet l'étude des rapports anatomiques avec les structures adjacentes, des résorptions dentaires éventuelles ou autres complications. Les trois cas décrits montrent la qualité des images obtenues grâce à cette technique en constante évolution.Cet outil d'exploration spécifique des tissus dentaires, exposant relativement peu aux rayons X, va probablement connaître une extension considérable dans un futur proche.
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