Question 320 · LDEK · Implantology and preprosthetic surgery
The extent of sinus membrane lift performed using the closed approach should not exceed:
- A. 1-2 mm.
- B. 3 mm.
- C. 4-5 mm.
- D. 6 mm.
- E. 8 mm.
Hint
In the crestal approach the membrane is lifted blindly through the implant osteotomy — how much elevation is considered safe?
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