Radiesse is great for restoring facial volume and stimulating a patient's own natural collagen as well. When you mention restoring volume to the cheeks, it can mean different things to different patients based on how their faces have aged or if they are just generally thin and lack facial volume. In the case of the upper cheeks, both closer to the nose in the mid-face or more lateral in what people think of as the 'cheek bone', Radiesse can be placed deep to achieve good projection and a lovely smooth result. Some patients lose volume in the lower portion of the cheek, causing a gaunt and drawn appearance. Radiesse can be used here as well in the layer between the skin and fat. Hope this helps.
Dr. Grant Stevens
Web reference: http://www.marinaplasticsurgery.com