Fig.7: Three implants are just placed.  The one at #21 is smaller than that at # 20. The lengths of them are the same.

One month later, the immediate implant at #21 is loose with space around it (Fig.8 arrowheads), while the other 2 implants are normal. 

Antibiotic &. Immediate Implant

Xin Wei, DDS, PhD, MS 1st edition 01/04/2015, last revision 01/04/2015