What I am about to write is my feelings and no ones else. I used Dr. Nassef for several years, I finally thought I found a Dentist I could trust. He never took not one x-ray on my whole mouth, and he did a root canal on the wrong tooth, and then put on 5 connecting crowns on my front bottom teeth in front when I only had that root canal. He made me some new bottom bridge, but he did not extract a tooth that should of been pulled making my bridge not fit right for a year. He did not clean my teeth and gums but one time and that is when I first went to see him. Now my teeth is decaying fast on top and breaking off and because of his poor work I have to get dentures on top and try to get my 5 connecting crowns back on with root canals to help support them. I have had several infections in my mouth and even caused a hole where infection came out . It is large. I get sick with all the poison in my mouth. I do not date or social anymore. As far as his chair side manners go, if you ask him a question he some how turns it on you and it is your faught. God knows I have spent alot of money and now I am on Social Security Disability and do not know how I am going to repair his damage.