The crown/abutment is loose 3 times (3 months (Fig.14), 11 months (between Fig.14 and 15) and 2 years 3 months post cementation).  In spite of being stable 3 years 10 months post cementation, a smaller abutment is placed (Fig.17 (PA), 18 (BW)) with impression for a new crown. 

Implant with Low Torque Last Next 1st Year  Xin Wei, DDS, PhD, MS 1st edition 04/28/2021, last revision 05/20/2021