... implantsurface.rPlacement of autogenous or nonautogenousparticulate graft material around the exposedimplant surface without use of a membrane.The advantages and disadvantages of each treat-ment approach ... block graft beneath a covering titanium-reinforced membrane.The advantages and disadvantages of each ap-proach have been previously discussed. Failure to place a covering membrane over an autogenousFigure ... AntonioVitoria, SpainEduardo Anitua, DDS, MDScientific director of BTI Biotechnology InstitutePrivate Practice in Vitoria (Spain)San AntonioVitoria, SpainPaulo M. Camargo, DDS, MS, MBA, FACDUCLA...