I went to Elegant Smile pretty recently to get a tooth filled - after three visits, I don't think I ever saw a dental assistant attempt a smile. While I liked my dentist (Dr. Nam) very much, she seems to be over-booked with very little time for each patient. She does take care to explain procedures fully, calm any fears you have, and is overall a really pleasant person to have around if you really must have someone around with a drill pointed in your mouth.
Pros: Nice lobby, love Dr. Nam.
Cons: Curt, cold assistants.
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