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After incision, the ridge at #29 and 30 is found ~ 5 mm wide buccolingually. To place a 4x11 mm implant at #30, the ridge is expanded using BEB technique (bone expansion and bending, Fig.1). It appears that the initial osteotomy at #29 is mesial (yellow dashed line: the distal surface of the root of the tooth #28). 64岁女，徒手种植，30号牙植入后马上放置基台，容易为29号牙种植定位
Xin Wei, DDS, PhD, MS 1st edition 03/27/2017, last revision 03/13/2021