Dr. Factor is quite a charachter, a master of the tricky root canal with a touch of Han Solo thrown in. I have had 2 different kinds of of tricky root canals from Dr. Factor, a rear molar with a double root, and a re-treat of an old root canal that didn't go far enough and had an abcess. Dr. Factor handled both with the total attention and skill that you want someone to have who is manipulating sharp objects inside your mouth. Do not be thrown off by his slighty tousled hair and somewhat wild look in his eye (just kidding), he's a no-nonsense guy who will tell it like it is. He totally took care of me, gave good instructions for post-care, and gave me his cell number in case I had any problems in the middle of the night. Seriously, I had the feeling the whole time that I was under the care of an expert. Steady hands and effecient manor; he doesn't hurry too much but he wont have you in the chair all day either.
I must make clear that I saw Dr. Factor at 19th ave Dental Excellence, the office of Dr. Matt Kiisk, who is my dentist through Deltacare CA. Dr Factor comes there every other thursday, so my "3" facilities rating is based on 19th ave, as opposed to his main office on Noriega. I also would reccomend deltadentalca.org.