Fig.1: A temporary crown is fabricated for an upper left 1st premolar implant.  There is a problem.  The implant is placed a little too lingual (L).  An extra ridge (R) is made buccal (B) to the buccal margin (M).

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Xin Wei, DDS, PhD, MS 1st edition 11/01/2013, last revision 11/01/2013