The uncinate fragment is then grasped and removed as one piece.This should bring into view the opening of the maxillary sinus and facilitate subsequent maxillary sinus meatotomy.
这时可以看到上
开口，并为进一步上口扩大术提供便利。
The uncinate fragment is then grasped and removed as one piece.This should bring into view the opening of the maxillary sinus and facilitate subsequent maxillary sinus meatotomy.
这时可以看到上开口，并为进一步上口扩大术提供便利。
声
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