VERTICAL AND HORIZONTAL BONE REGENERATION

Abstract

There are many different techniques to restore a sufficient bone thickness, in both vertical and horizontal direction, after bone loss due to resorption after extractions or after a long period of edentulism. The aim of the present study is a clinical evaluation of the result obtained using the GBR technique with a e-PTFE titanium reinforced membrane in posterior maxilla (1.4-1.6). A 56-years-old male patient presented an implant lost in zone 1.6 and a mucositis around the implant in zone 1.4; after the latter’s removal and ahealing period of 4 months, the large bone defects have been filled with heterologous bovine bone mixed with autologous bone and covered withe-PTFE titanium reinforced membrane fixed to the alveolar ridge. After six months the site was reopened to remove the fixing screws and to place two dental implants (size 4x12) in zone 1.4-1.6; after the osseointegration period of 6 months, the implants were uncovered and two healing-screw were positioned. Despite the exposure of the membrane during the healing period a significative increase in alveolar bone both vertical and horizontal was observed, such as to ensure excellent aesthetic and functional result, showing the success of the procedure.