5 /5 Mark Semanchik: I was sad when I found out that my dentist for the past 20 years was retiring. I am very happy now that I have started as a patient at Randall Manor Dental Care. What a relief to be in the care of Dr. Costa and his great staff. They have a very modern, efficient, and clean office. I had two older fillings replaced - painless. Dr. Costa explains what he is doing as he works.