Surgical management of periapical lesion with dens in dente.

The management of one case of dens in Dente (Dens invaginatus) in maxillary lateral incisor with history of trauma to maxillary central incisor with periradicular lesion is reported. The patient presented with pain and fracture of anterior tooth. Despite of complex anatomy and diagnosis of dens invaginatus, surgical root canal (Apicoectomy) was performed successfully. Further more essential clinical considerations and treatment options are suggested. Early diagnosis and management are important to avoid complications.

Langerhans cell histiocytosis of maxilla and mandible in 6 years old child: a case report.

Langerhans cell histiocytosis (LCH) is a group of idiopathic disorders characterized by the proliferation of specialized bone marrow-derived Langerhans cells (LCs) and mature eosinophils. Its etiology is unknown but it could be due to antigenic stimulus of an infectious, genetic abnormality, deregulated immune response, or even clonal origin. Clinical presentation may be localized and systemic, invading skin, lungs and bone in adult, and bone marrow and lymph node in children. Obtaining a biopsy that yields cells that are morphologically and immunohistochemically compatible with Langerhans cells, can make a definitive diagnosis of LCH. Poor prognosis factor include advanced age, disease extent and systemic organ abnormality. Conventional treatment of LCH is with surgery, radiotherapy, chemotherapy and steroid injections, alone or in combination. Spontaneous regression of localized disease has also been reported.

Comparative study of dentinogenesis imperfecta in different families of the same topographical region.

Dental hard tissue is subject to variety of disorders. Dentinogenesis Imperfecta is one such disorder attributed to heredity. It is known to be an autosomal dominant trait. Teeth with such 'imperfect' dentin are liable to be weak and discolored. The disease has variable penetration and therefore can be expressed as a range of phenotypic manifestations from mild discoloration and chipping to frank attrition and multiple pulp canal exposures. Here we present a comparative study of a series of cases from different families of one topographical region with widely different presentation and histories that are characteristic of this disease.