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Fig.3: Implant placement at #19 with guide. The gingiva around the healing abutment (5.5x3 mm) at #19 is erythematous (Fig.5), probably related to the submerged abutment. There is no bone loss 5 months postop (Fig.6) or 7.5 months postop (Fig.8). The abutment screw is loose 3 months post cementation due to unfavorable crown/implant ratio (Fig.10). Bicon implants will be in consideration to reduce screw loosening if implants are to be placed at #15 and 18. In fact the abutment is incompletely seated.
Xin Wei, DDS, PhD, MS 1st edition 09/25/2018, last revision 01/16/2021