Q. Show the Signs and symptoms of implant failure?

Signs and symptoms of implant failure are :

1.  Horizontal mobility beyond 0.5 mm or any clinically observed vertical movement under less than 500 g force

2.  Rapid progressive bone loss regardless of the stress reduction and peri implant therapy

3.  Pain during percussion or function

4.  Continued uncontrolled exudate in spite of surgical attempts at correction

5.  Generalized radiolucency  around an implant

6.  More than one half of the surrounding bone is lost around an implant

7.  Implants inserted in poor position making them useless for prosthetic support