I have been going to Dr. Cassidy for the past 17 years since I first moved to the Minnetonka area. In that time I have only had a single filling (As compared to the 5 I had in the 4 years with my previous dentist). I'm not a scientist so I do not know what Dr. Cassidy could be doing differently from my old dentist, but whatever it is, it has preserved my teeth very well.
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