I am 28 years ago and had to have 4 implants placed so I looked around and found Dr.Mao . I would tell everyone to go to him! He is the best, extremely careing and a great periodontist. I tried a couple of them in my area and after seeing Dr.Mao I knew I wanted him to do my surgery! Really he is the best,I had my surgery everything went well and I couldn't be happier!