Please watch a video that we use dual surgery system for fixture implantation./nBasically, Dream Series is a bone expanding system, which expand the 4.5mm bone width in case of D3, D4 bone. If the same conditions in D1, D2 bone, remove the cortical bone and do the same process./nSpecailly, there are one shot drilling system./nIt is different from existing system that dental surgeons have changed different diameter drill. We only use one time for this./nLet's check it out./nThanks and best wish,/nTom, Lee