This dentist did two of my crowns on molars and both of them with very poor results. One so bad, I had to get it redone at another dentist.
On the first crown he created a gap between the molar with the new crown and the molar next to it. This was a fairly large gap, so that food got stuck in it and it created my gums to be painful. I went back to consult with the dentist and he suggested to get a second crown on the molar next to it to fix the gap problem. His reasoning was that this next molar would need a crown sometime soon anyway. So I agreed to get the work done. On this second tooth, he miscalculated the margins so badly, that I had a large ridge standing out from my tooth where the crown was attached and the gap problem was not fully solved.
I had this reviewed by two other dentist who both thought this was very bad work. I ended up having the second crown completely redone at another dentist. Now the margin and gap problem is fixed. While Dr. Okino is a very kind guy, I would NEVER go back to him for any serious dental work after these two bad experiences.