조기 임프란트술식(Early implantation)을 이용한 상악소구치부위 수복

Abstract

A technique of “early implant”where the timing of fixture placement is delayed till 4 to 8 weeks after extraction overcomes the disadvantages of immediate implantation and allows the elimination of associated infective processes, the achievement of maximum osteoblastic activity and complete wound coverage that simplifies the placement of grafts or membranes. This case report was to evaluate early implantation on Maxillary premolar site as a easier and predictable method. 2 Patients received teeth extraction on maxillary premolar sites, due to endodontic failures and periodontal infection. The Implant fixture was placed at 4weeks after tooth extraction where the problem of dentally related infection has resolved. In the first case, the size of coronal gap which is the distance between implant and bone was less than 2mm. In the second case, coronal gap was absent. Without a use of barrier membranes and bone grafts, implant sites were closed primarily. At re-entry, amount of bone fill was observed and the residual defect was almost absent. In conclusion, early implantation could be predicted to have a good short-term prognosis with bone regeneration occurring around the defect without the use of barrier membranes or bone substitutes.