Dr. Darin Kajioka is, hands down, the best Endodontist in Las Vegas. The only pain I have ever had is the initial shot to numb me up and he has done 7 root canals on me. After that, he is gentle, competent and concerned about his patient. I have even fallen asleep during a procedure. I first started using Dr. Kajioka when I had an abscess that another endodontist couldn't fix and he wanted to extract but had me get a second opinion first. Dr. Kajioka was patient and knowledgeable enough to solve the problem without extraction. I also have very long roots that dentists wont touch, but Dr. Kajioka has no problem with them. For those of you who hate the thought of a root canal, you should try Dr. Kajioka. You wont regret it.