Dr. Kay has excellent credentials having previously taught classes (part time) at the UW dental school. His needle "procedure" for injecting Novocaine is practically painless. He's a perfectionist and if something isn't right always strives to correct it. If a procedure is required beyond his specialty and expertise, he never hesitates recommending going to an outside specialist rather than trying to do it himself.
As best as I can tell, he treats his staff with respect, and they like working for him. They have always been courteous and helpful. He sends email reminders for upcoming appointments, which I find convenient.
I wouldn't hesitate recommending him to family or friends.
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