With placement of more of bone graft, a 4.5x7 mm definitive implant is placed with ~ 25 Ncm (Fig.2).  The healing abutment is dislodged 1 month postop.  If unsure or before impression, use sensor 1 to take PA to determine whether the abutment contacts the crestal bone or not. 最好每次放置愈合基台，都拍摄咬翼片，检查是否基台与牙槽嵴有接触。Water Lift Last Next Screw Xin Wei, DDS, PhD, MS 1st edition 10/29/2019, last revision 02/26/2021