Buccolingually the implant and its straight abutment (5.8 mm, A in Fig.5) are within restorative limit.  The most coronal threads of the implant are exposed lingually.  Autogenous bone and Osteogen are placed over the threads, followed by collagen membrane (*).

The abutment seems to be too large and close to #18.  It may be difficult to fabricate the provisional.  A 4.8 mm abutment may be more appropriate than 5.8 mm as a temporary measure.  Once the tooth #18 is uprighted (distalized), the larger abutment can be used for the definitive restoration.

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Xin Wei, DDS, PhD, MS 1st edition 09/23/2014, last revision 09/23/2014