An angled abutment is used (Fig.2); the future access hole is also buccal.  Screw retention is impossible for cosmetic reason (Fig.3).  To keep the access incisal and palatal, keep removing palatal bone sequentially.

Palatal Osteotomy Last Next

Xin Wei, DDS, PhD, MS 1st edition 03/12/2019, last revision 03/12/2019