Dr Okamoto is very experienced. However, after my filling was done, and after I went home, there was a large piece of sealant left between teeth. It was like clear plastic. I didn't know what it was. I wasn't informed about it. Also, when he was replacing one of the lose amalgam fillings, he went ahead and simply drilled it out. It could have been easily removed by picking it out since it was pretty lose already. Overall, I feel he is an very experience dentist, however I thought he could pay more attention to detail.