Dr. Boner saved my tooth, he explained to me in great detail about my tooth which needed a retreat. I have had a nightmare with this tooth for two years. My former dentist missed a canal and Dr boner took a lot of his time to make sure the job was done right. I was impressed because i was skeptical of this tooth that I already had root canal on.... It's still exist to this day with zero problems. If you have a mess of a tooth and need a retreat on your root canal.... Go see Dr. boner! If you need a root canal, you may want to go to him to avoid a nightmare that i once lived.