[Fortuitous discovery of a Stafne bone cavity in the Cone Beam CT sialography]. / Découverte fortuite d'une lacune de Stafne à la sialographie Cone Beam CT.

The Stafne defect is a benign, asymptomatic, non-progressive and rare bone depression, mainly discovered by chance in the posterior mandibular region. It is described radiographically as an oval radiolucency located below the mandibular canal, in the molar region, close to the submandibular gland. Sialography is a traditional technique in the radiographic examination of salivary glands that involves the injection of an iodine-based contrast medium into the main salivary duct. The Cone Beam Computed Tomography (CBCT) is a 3D imaging technique that has modernized the dental and maxillofacial practice with its advantages such as high speed, good spatial resolution and low radiation exposure. The CBCT Sialography that consists in a 3D Sialography with cone beam offers the same benefits as traditional sialography and allows three-dimensional viewing. It is a new imaging test for an accurate anatomical study of the major salivary glands and their relationships with their environments. The aim of this report is to present a case of Stafne bone cavity containing right submandibular gland tissue, occurring in a 58-year-old man and diagnosed by using CBCT sialography.

[Clinical and therapeutic aspects of trigeminal neuralgia. Apropos of 27 cases treated at the General Hospital of Grand-Yoffin Dakar]. / Aspects cliniques et thérapeutiques de la névralgie faciale essentielle du trijumeau. A propos de 27 cas colligés a l'Hôpital Général de Grand-Yoff de Dakar.

The trigeminal neuralgia or "painful tic" of the face is an invalidating affection, which affects the quality of life of the patient. The odontologist must be able to diagnose it and take part in his good therapeutic assumption of responsibility. The diagnosis is sometimes difficult, being able to involve unsuited therapeutic methods prejudicial for the patient. The objective of our study was to analyse the clinical and therapeutic aspects of the trigeminal neuralgia. It was a transverse and descriptive study which 27 files of patients suffering of trigeminal neuralgia and treated in the odontology service of the General hospital of Grand-Yoff in Dakar between July 2002 and July 2008. We exploited the following parameters: the age, the sex, the oral state, duration of the symptoms, characteristics of the pain, the type of treatment. 22 patients of the 27 cases were female. The time of consultation was often late, the patients generally preferring begin with the traditional treatments. The neuralgia of V2 dominated the clinical picture, followed that neuralgia of V3. The pain was strictly unilateral, it was started by movement, speaking, eating or touching the trigger zone. The prescription of carbamazepine (Tegretol) was systematic, and constituted a true test diagnosis, it made possible to obtain an immediate sedation of the pains. In front of the medicamentous treatment failure, the alcoholization of the trigeminal branch has given good performances, indeed it made possible to obtain, a clear lull of more than 12 months for 9 patients out of the 10 who profited from it. The alcoholization of the trigeminal nerve remains an effective cure and constitutes an accessible alternative under our work conditions in Africa.