ABSTRACT
The aim of the present study was to evaluate the dental student's concepts about dental implant education which can be used in dentistry doctorate curriculum revision and could be useful for professors of periodontology, prosthodontics and maxillofacial surgery. This was an educational research which was conducted in Mashhad dental school in 2011 and 58 end year dental students were participated in this study and filled out questionnaires about dental implant education and the concepts of these students about theoretical and practical aspects of dental implant education were evaluated. A total of 98.27% of the students were agreed about education of simple implant surgery so that they could put a simple implant and 87.94% of the students were agreed about education of dental implant as a single course credit and about creation of a dental educational group, 96.56% were agreed. About dental implant educational topics, the most educational need was education of principles of implant surgery followed by education of putting a simple frontal implant, and the least, was introduction and history of dental implants. Because of necessity of development for new sciences in order to promote health in the society, education of dental implant for general dentistry students and revision of general dentistry curriculum seems necessary.
ABSTRACT
Chondrosarcoma is a malignant tumor of cartilaginous origin. The most common type in the jaw is mesenchymal. Chondrosarcoma in maxillofacial region is an uncommon tumor and maxilla is more commonly affected than mandible. The aim of this paper is cases report of a rare chondrosarcoma of the mandible. A 65-year-old woman was referred to Oral Medicine Department of Mashhad dental school with swelling over the buccal and lingual aspect of the anterior mandible. Swelling had been present for 1 year and had increased gradually in six over time. The patient did not have any systemic disase and was not currently taking any medications. Extraoral examination did not reveal any obvious facial swelling, asymmetry or cervical lymphadenopathy. Intraoral examination revealed an exophitic nodular and tendered lesion with smooth and purple surface. IT was firm to rubbery in buccal aspect and bony in lingual surface with 3x3.5 diameters. Occlusal and panoramic radiographs revealed the multibular well defined and mixed radiolucent-redioopague lesion from right mandibular first premolar to left mandibular first premolar. Subperiosteal ossification is revealed in the occlusal cross sectional radiography. Histopathological examination revealed chondrosarcoma [grade I]. The patient was advised to undergo surgery, and the tumor was respected by segmental mandibulectomy. Clinical and radiographic feature at chondrosarcoma are varied, the incidence of this lesion in unusual location like anterior of jaw with a well-defined feature and ossification could lead to clinician error and delaying treatment. Considering age, course and invasion could be helpful in diagnosis