After 3-4 more turns of the implant at #19 for submerge, panoramic X-ray (Fig.8) and CT (Fig.9) are taken for 28-30 guide. The implants at #12, 18 and 20 are 4.5 months postop, whereas that at #19 immediate postop.
Xin Wei, DDS, PhD, MS 1st edition 01/17/2019, last revision 01/18/2020