I've been going to Dr. Christiansen for about five years now. I usually go 2x/year for cleaning & his office is state of the art with top hygienists and a really nice receptionist named Gail.
He's had to some dental work on me--- crown & fillings. He managed to save one of my teeth from root canal.
I've recommended him to numerous coworkers & my neighbor, who has had a lot of dental work done.
Dr. Christiansen was former president of SD Dental Society and his wife is a hygienist. I am really, really picky when it comes to dentists, but i really think he's fantastic. I would recommend him in a heartbeat.