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Nearly 4 months post implant exfoliation, the ridge at #14 looks narrow. Incision reveals loss of the palatal plate coronally. The same guide is used to finish osteotomy with modification. There are several points of difference. The 1st one is use of the guide (G) for the complete procedure, including the implant placement so that there would be no apparent trajectory deviation. A bone-level implant is used instead of a tissue-level one. When a 4x11 mm dummy implant is ~1.5 mm shy of the depth (Fig.1 D), the palatal threads are exposed.
Xin Wei, DDS, PhD, MS 1st edition 05/14/2020, last revision 05/18/2020