Buccal (cheek) fat is fat directly under the buccinator muscle in the cheek. It gives the cheeks a plump, full look. As you age this fat gradually resorbs. Buccal fat is usually removed in young people who desire a thinner and more defined face. The goal is for the look to be natural, not excessively hollow.
Buccal fat is removed by making a small incision inside the mouth directly over the fat. The muscle is separated and the excess fat is removed, decreasing the fullness of the central cheek. The incisions are closed with dissolvable stitches. This is routinely done in the office with local anesthesia and (Pronox) laughing gas.
Your cheeks are sore for 5 days. There may be bruising and you will need to eat soft foods for several days. You must refrain from sports or working out for 2 weeks. Your result will not show right away due to swelling and it may take 2-6 weeks for this to subside. The final result is apparent in 6 months.