A 56-year-old woman has sign of periimplantitis 2 years 9 months post cementation. After incision, the 5.5x13 mm bone-level implant is ~ 3 mm inferior to the buccal crest. The implant is removed with 7/6 mm trephine bur, elevator and implant driver. The sinus membrane perforates. A 8x17 mm tap achieves stability (Fig.1), but the peripheral bone seems to be thin.
Replacement 劈开术 Last Next
Xin Wei, DDS, PhD, MS 1st edition 08/09/2019, last revision 04/11/2021