Most common mechanism of failure of dental implants is
The most common failure mechanism is alveolar crest resorption due to overloading. This inevitably leads to progressive periodontal lesions, decreased areas of supporting tissues, and ultimately to implant loosening. Aseptic failures are most often the cumu- lative result of more than one of the aforementioned factors.
Alveolar crest resorption due to overloading
Periimplantitis due to infection
Implant fracture after loading
None of the above