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Fig.9: D2 implant (3.5x4.5x20 mm).
When a definitive restoration is cemented, the 1st thread is not completely covered by the bone (Fig.14 <). The bone continues to grow coronally 10 months (Fig.15), 2 years (Fig.16) and 3 years 5 months (Fig.17) post cementation. The most coronal portion of the implant that can be covered by the bone is indicated by * in Fig.17, partially predicted by the bone level of the neighboring tooth and partially by the character of the implant surface treatment.
Xin Wei, DDS, PhD, MS 1st edition 09/20/2015, last revision 09/09/2018