sinus lift surgery?这个我有点不确定。
网上查了查,Bone grafts 和 sinus lifts 大概是一个意思:
https://harrisburgsmilesdental.com/what-are-bone-grafts-and-sinus-lifts-do-i-need-them/#:~:text=A%20bone%20graft%20utilizes%20a,used%20on%20the%20upper%20teeth.