My husband, Bert, needed to have all his top teeth pulled & replaced with implants in addition to 6 bottom teeth in the front. It was a huge undertaking & we searched the internet for dentist in the Newport Beach area. We interviewed 4 different dentist & were immediately drawn to Dr. O. He was not only very Knowledgeable about the procedure Bert would need, but very caring about what he would have to go through and explained everything in detail. We decided to proceed with procedure. It was a very complicated undertaking requiring several procedures & waiting times in between for the implants to set & the bone grafts to take. Finally after 9 months the day came to put in the final top teeth ...which were a set of three bridges that were to be attached to the 8 implants. I don't know if I can make anyone understand or identify with the expertise it takes for a dentist to extract all the top teeth & bottom 6 in front, put in 11 implants, design & fit the bridges & at the very end have everything be in the right spot & fit perfectly !!! We feel very fortunate to have found Dr. O. We both continue to have Dr. O & his staff take care of all of our dental care. We would recommend, without hesitation Dr. O & his staff to handle all of you & your families dental care.