In fact the lab accepted the STL file (Fig.2,3 brown lines), which coincides with CBCT image.  Coronal section shows the steep lingual slope of the ridge, which is related to lingual exposure of the rough surface of tissue level implant.  2 Files Match       Last     Next Xin Wei, DDS, PhD, MS 1st edition 06/18/2021, last revision 08/14/2021