Prévalence de l'inclusion des dents de sagesse: étude radiologique auprès d'une population nord africaine

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Sinda Yacoub
Nouha Dammak
Soumaya Zaalouni
Mohamed Amine Hrizi
Mohamed Ben Khelifa

Résumé

Objectif : Déterminer la prévalence et les propriétés d’inclusion des dents de sagesses (M3M) et les pathologies qui lui sont associées chez une population Tunisienne.


Méthodes : Nous avons revu 730  panoramiques, parmi 6043 patients. Les informations suivantes ont été évaluées : la présence, l'angulation, la profondeur d'inclusion et les pathologies identifiées radiologiquement au niveau des dents de sagesse et des molaires adjacentes.


Résultats : Parmi les 730 patients, 367 (50,3%) ont présenté au moins une dent de sagesse incluse. La prévalence d’inclusion diminuait avec l'augmentation de l'âge. Le nombre total des dents de sagesses incluses était 881. Le nombre d’inclusions le plus frequent par patient était deux (35,7%). Le niveau d'inclusion le plus frequent au maxillaire était le niveau C et à la mandibule, le niveau A. L'angulation la plus fréquente était la verticale au maxillaire et à la mandibule. La plupart des M3M mandibulaires (76%) ont présenté la classe II en relation avec le ramus mandibulaire. 1,36% des deuxièmes molaires adjacentes à une dent de sagesse incluse ont montré une résorption radiculaire et 3,79% des M3M présentaient une pericoronite. 12,5% et 92,3% des deuxièmes molaires présentant des caries cervicales distales (DCC), respectivement au maxillaire et à la mandibule, sont adjacentes à dent de sagesse incluse. Les pathologies les plus associées aux dents de sagesse incluses étaient les caries distales des secondes molaires (11,7%) et les caries des  troisièmes molaires (5,2%).


Conclusion : L’inclusion des dents de sagesse était observée chez 50,3% d'un groupe....( résumé tronqué à 250 mots)

Mots-clés :

Dent de sagesse, Inclusion, Radio panoramique

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