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A 66-year-old man returns for #3 implant 1 month post #14 cementation (Fig.1). The latter was placed free hand because of emergency (tooth fracture). The distal threads are exposed (<) probably related to shallow placement (imprecision) or insufficient bone graft. In spite of the wide ridge at #31 (data not shown), there is bone loss around the extremely large implant (<).
Xin Wei, DDS, PhD, MS 1st edition 02/20/2020, last revision 04/24/2021