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Jensen's classification following the Sinus Consensus Conference (1996) 5
| Residual ridge height | Case management |
|---|---|
| ≥10 mm (Class A) | Implant placement |
| 7‐9 mm (Class B) | Crestal sinus floor elevation with immediate implant |
| 4‐6 mm (Class C) | Lateral sinus floor elevation with immediate or delayed implant |
| 1‐3 mm (Class D) | Lateral sinus floor elevation with delayed implant |
