Can a sinus lift augmentation be done by most general dentists?

No: A Sinus Lift is a very delicate and precise surgery that requires a significant amount of advanced training. While there are general dentist who have sought out that level of training, most have not. Periodontists and Oral Surgeons are generally best qualified.

Trained dentist only: A sinus lift augmentation is performed by an appropriately trained dentist or dental specialist like periodontist or oral surgeon.

No: No. Very rare to have general dentist do this procedure. Almost always done by oral surgeon. Other dentists can do it if well trained.