Dr. Hirai did unnecessary work on my children. They ask you if your children flossed everyday and if you say "no" they call you in the back show you the xrays and say that your child has cavities. My kids were getting cavities every time we had an appointment. We were suspicious and saw another dentist. After our new dentist reviewed my kid's xrays, there were NO cavities! Just the thought of my kids having to go through unnecessary pain infuriates me!