A biomaterial helps to improve the quality of life and longevity of humans. Over the last decades it has become clear that the demand for biomaterials has increased rapidly due to the aging population that occurs in practically all the countries of the world, with the elderly being at higher risk of hard tissue insufficiency. Biological and mechanical biocompatibility of metal biomaterials requires much improvement. It is sought to achieve a longer shelf life of the implant biomaterial or that it lasts until the end of life without failures or need for revision surgery. Biomaterials must meet several criteria, such as excellent biocompatibility, adequate mechanical compatibility, high corrosion and wear resistance. The present work aims to perform a description of biomaterials and some properties for their choice, evidencing some characteristics of the biomaterial of titanium and its alloys.Thus, the implants are expected to act much longer or to the end of life without flaws or revision surgeries. Thus, the development of Volume 14-Issue 3

A benign oropharyngeal infection without appropriate treatment can be complicated by a jugular vein thrombosis. This septic clinical picture most commonly known as Lemierre syndrome. Though this complication appears to be rare, early diagnosis and prompt intervention have proven critical in survival outcome. We describe two pediatric cases who has presented this syndrome. Adequate antibiotic treatment for 6 weeks associated with anticoagulant treatment have allowed a complete recovery without sequel.

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Le mégaoeosophage est une affection rare chez l’enfant, chez qui les symptômes sont atypiques et variables avec l’âge. Les symptômes cardinaux sont la dysphagie, régurgitation, vomissements et douleur thoracique. S’il se présente par des symptômes respiratoires, le diagnostic peut être difficile et retardé. L’hémoptysie est rarement signalée chez les patients souffrant de mégaoesophage à la fois chez les adultes et les enfants d’où intérêt de cet article afin de souligner l’importance de rechercher devant toute symptomatologie respiratoire chronique un trouble oesophagien.