From: Influence of bone condition on implant placement accuracy with computer-guided surgery
Bone condition
Criteria
Bone density
BD1
< 500 HU
BD2
> 500 HU
Bone width
BW1
< 6 mm
BW2
> 6 mm
Cortical bone thickness
CBT1
< 1.5 mm
CBT2
> 1.5 mm