I was referred by Dr. David Hillinger to go to Dr. Arima for periodontal treatment. I definetely agree with the review above that he is a perfectionist and he does know what he talks about. The staff is friendly and nice. His treatment helped my gums quite a bit and my gums hardly bleed because of him. He first did a deep cleaning procedure where they scaped some of my gums off. Then I had to get gum surgury where he scaped more gums off and it looks better. My insurance paid for most of it.