PST Case 25 Rick Glassman, DDS September 6, 2017Chao Pinhole Surgical Technique (PST™) 6 week PO VS CPST UR 6 week PO AFTER VS CPST Full Arch : Frnt 6 week PO AFTER VS CPST UL 6 week PO AFTER Before VS CPST UR 6 week PO BEFORE VS CPST Full Arch : Frnt 6 week PO BEFORE VS CPST UL 6 week PO BEFORE Share this!