The patient returns for #13-15 crown prep 4.5 months postop (Fig.7).  Abutments change to 5.8x5(3) and 5.8x4(3) mm at #14 and 15, respectively with mesial reduction of the tooth #16 (curved line) before impression.

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Xin Wei, DDS, PhD, MS 1st edition 12/14/2017, last revision 06/12/2019