I placed a MIS Seven implant 5x6mm in the region of upper left 2nd molar. I got 35Ncm torque establishing primary stability, then placed the cover screw. Implant was placed using punch incision.The patient was fine after 3 days. Suddenly after 15 days patient sends me a picture saying the implant came out.She is not having any pain or discomfort. Any ideas as to the possible reason for implant failure? Patient is not medically compromised. Why would this implant have failed like this?