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When the apparently incompletely seated abutment at #9 (Fig.3 (immediate postop)) is removed 4 months postop, the buccal gingival cuff is erythematous and hemorrhagic. A longer (from 3 to 4 mm) angled abutment is placed and torqued (Fig.6 without gap).
Xin Wei, DDS, PhD, MS 1st edition 01/27/2020, last revision 04/12/2020