Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Proliferation of epithelial rests of Malassez following auto-transplantation of third molars: a case report | Struys et al. Journal of Medical Case Reports 2010 4 328 http content 4 1 328 jAg JOURNALOF medical ÌỤr case REPORTS CASE REPORT Open Access Proliferation of epithelial rests of Malassez following auto-transplantation of third molars a case report 1 2 I z- 3 2 2 Tom Struys Joke Schuermans Livia Corpas Constantinus Politis Luc Vrielinck Serge Schepers Reinilde Jacobs3 and Ivo Lambrichts 1 Abstract Introduction Auto-transplantation of third molars is frequently undertaken in order to restore a perfect occlusion and to improve mastication following a substantial loss of molars. However little is known about the precise role of the periodontal membrane during this procedure. Therefore we investigated if the epithelial rests of Malassez persist in the periodontal ligament of auto-transplanted teeth and if so whether these may show signs of a neuroepithelial relationship. Case presentation We report a case of a 21-year-old Caucasian woman who underwent an auto-transplantation of two third molars. After two years renewed progressive caries of the auto-transplanted teeth led to the removal of the auto-transplanted elements. The periodontal ligament was removed and studied with a light and transmission electron microscope. Conclusion In this report we examined the ultrastructure of the periodontal ligament after auto-transplantation in order to see if the periodontal ligament recovers completely from this intervention. We observed fully developed blood vessels and a re-innervation of the epithelial rests of Malassez which were proliferating following autotransplantation. This proliferation might be critical in the remodelling of the alveolar socket in order to provide a perfect fit for the transplanted tooth. In order to minimalise the damage to the epithelial rests of Malassez the extraction of the tooth should be as atraumatic as possible in order to provide an optimal conservation of the periodontal ligament which will be beneficial to the
