A 49-year-old woman has loose splinted crowns between #13 and 14.  After removal of the crowns, the tooth #13 is non-salvageable (Fig.1).  A 4 or 4.5 x 8.5 or 10 mm implant should be able to achieve primary stability because of engagement of the implant into the mesial and distal walls of the socket and sinus floor.  Splinted provisional should provide with additional retention.

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Xin Wei, DDS, PhD, MS 1st edition 03/11/2020, last revision 05/09/2020