과도한 하중으로 제거된 임프란트 주위조직의 투과전자현미경적 관찰

초록

Overloading, infection and impaired healing are considered the major etiologic factors for the fail of dental implants. The treatment of failing implants is depends on the knowledge and skill based on entirely on experience, from periodontal research, and from interesting case reports performed on a trial-and-error basis. The aim of the study is an evaluation of the ultrastructural aspect of interfacial tissues from retrieved implants in which there had been overloading for 1 year to the right and left lower 1st molar areas. After removal of peri-implant tissues, they were prepared and observed by transmission electron microscope without decalcifiction procedure. The results were as follows. Transmission electron microscopy revealed destruction of the cells and tissues, degradation of the collagen fibers with micro-organisms. Overloading could be related to abnormal bone remodeling sequence.