I had a gingival graft done by Dr. Wiessen. It's not an easy procedure to go through and involves cutting the roof of your mouth to donate tissue to an area of recession. His manner is great. He put me at ease and explained things well and created reasonable expectations. However,he could do better with his office staff. It feels as if the receptionist is some one I can work with but have to work around. More than once she has no relayed important messages to the doctor, and has brushed off some important questions.