[Lung cancer reveal by mandibular metastasis: a case at the Centre of Consultation and Dental Treatment Dental of Casablanca (CCDTC)]. / Métastase mandibulaire révélatrice d'un cancer du poumon. A propos d'un cas au Centre de Consultation et de Traitement Dentaires de Casablanca (CCTDC).

Metastatic tumors result from hematogenous spread through a tumor located at a distance. All these tumors represent about 1% of malignant tumors of the oral cavity (1). The most common location is the mandible (70%), more rarely maxillary (2). The most frequently encountered tumors are carcinomas or adenocarcinomas of mammary origin, brocho-lung, prostate, kidney or another. This study reports the case of a 46 year-old man, who presented for consultation with a low left laterofacial swelling, paresthesia lip and chin straight associated with pain at the lower edge of the mandible evolving for 2 months. The patient is known to take alcohol and tobacco for 20 years. The panoramic radiograph showed radiolucent image with blurred boundaries at the lower right premolar region. Dentascan revealed an irregular osteolytic lesion with rupture of the table lingual. After surgical exploration, the pathological examination is for a well-differentiated and invasive adenocarcinoma of the mandible. Extension work-up shows the presence of a tumor right lung, a lytic lesion at the 8th costal arch, the fourth dorsal vertebra and another location in fibula. The surgical exploration of pulmonary was performed and confirmed the pulmonary primitive localization of adenocarcinoma.

[Möbius syndrome]. / Le syndrome de Möbius.

Möbius syndrome is a rare congenital disease characterized by facial and abducens nerve palsy. Children are unable to smile, frown, suck, grimace, blink their eyes, and to move their eyes laterally. The aim of this study was to analyze the diagnosis and treatment of this disease. Maxillofacial examination reveals: facial diplegia, retrognathism, palatine and dental malformations. Möbius syndrome is usually associated with multiple cranial nerve involvement, limb or orofacial malformation, and Poland syndrome. Although the pathogenesis of the syndrome is unclear, a number of mechanisms have been suggested including vascular and genetic hypotheses. Symptomatic treatment is used to manage this syndrome. The diagnosis of Möbius syndrome may be difficult in some patients with atypical signs of facial diplegia and other cranial nerve palsies, it requires a multidisciplinary approach.

[Maxillary cementoblastoma. A case report]. / Cémentoblastome maxillaire. A propos d'un cas.

Cementoblastoma is a rare benign odontogenic neoplasm. Its cause is unknown. It represents less 6 % of all odontogenic tumors. The aim of our work is to present a rare case of maxillary cementoblastoma involving an included central incisor. A 32-year old man consulted for a left maxillary swelling to projection under nostril. A panoramic radiographic examination revealed an included tooth 21 with a radiopaque lesion around its root. The computed tomography revealed the included tooth 21 with a process around its root. This process is well-defined, high-dense and is surrounded by a radiolucent halo. The treatment should consist of complete removal of the lesion with the tooth 21. Histological examination concluded to the diagnosis of a cementoblastoma. The cementoblastoma occurs most frequently in young persons and predominantly among men. The mandibular premolar and molar are the more frequently reached. The maxillary localization remains rare. This tumor occurs around the roots of the posterior and lower teeth. Radiographically, the lesion is well-defined and attached to the root of the tooth, radiopaque dense and surrounded by a radiolucent halo. The cementoblastoma evolves slowly and has the tendency to blow the cortical. The prognosis is good.

[A maxillary lip bumper used to manage labial self-mutilation]. / Utilisation du lip bumper ou pare-choc labial dans la prise en charge d'une autophagie labiale.

INTRODUCTION: The repair of facial self-mutilation often fails if the reconstruction is not protected. The authors report a case of a lip self-mutilation treated by an orthodontic device: the "lip bumper". OBSERVATION: A four-year-old patient presented with self-mutilation of the lower lip in a context of multiple malformations. The defect concerned two third of the lower lip. The treatment combined antibiotics, local care, psychiatric management and a lip bumper. The evolution was favorable without need for secondary reconstruction. DISCUSSION: The lip bumper is a simple orthodontic device. It pushes the lower lip away from the dental arch. It is used to stop the pattern "agitation-mutilation-infection".