≥10 mm (Class A) |
Implant placement |
7 to 9 mm (Class B) |
Crestal Sinus Floor elevation with immediate
implant |
4 to 6 mm (Class C) |
Lateral Sinus Floor elevation with immediate or
delayed implant |
1 to 3 mm (Class D) |
Lateral Sinus Floor elevation with delayed
implant |