Sorry for the hijack, but I have to share the website of a dentist I recently learned about. My ND has attended seminars where he was the speaker.
His site talks about the dangers of root canals & the alternative he uses, which is a laser. My ND says he's the country's expert on laser dentistry (including treating a cavity using a laser instead of a drill.) But I guess other laser dentists are popping up. Interesting stuff.