The distal surface of #29 is trimmed and the abutment is changed to 5.5x5.5(2) at #30 before impression (Fig.10 (taken after impression)).
One-Staged Ridge Split with Surgical Bur Previous Next 劈开术
Xin Wei, DDS, PhD, MS 1st edition 01/02/2017, last revision 04/10/2021