Table 1 Criteria for implant success
Implant quality scale group | Clinical conditions |
|---|---|
Success (optimum health) | No pain or tenderness upon function 0 mobility  < 2 mm radiographic bone loss from initial surgery No exudates history |
Satisfactory survival | No pain on function 0 mobility 2–4 mm radiographic bone loss No exudates history |
Compromised survival | May have sensitivity on function 0 mobility Radiographic bone loss > 4 mm (less than ½ of implant body) Probing depth > 7 mm May have exudates history |
Failure (clinical or absolute failure) | Any of following: Pain on function Mobility Radiographic bone loss > ½ length of implant Uncontrolled exudate No longer in mouth |