Compromised health or 'surviving' implants
The features or clinical conditions which are representative of this group are:
i) No pain in the implant site upon function
ii) No mobility to IM 2 on the implant mobility scale.
iii) Radiographic bone loss is greater than 4mm
iv) The probing depth is greater than 7mm
v) The patient exhibits bleeding on probing and suppuration or its history.