I have had Dr. Mattson as my dentist for almost 9 years now, and honestly, I don't have any complaints. However, I have good teeth, and have not required any major procedures apart from the extraction of my wisdom teeth a few years ago. For this, she referred me to a an oral surgeon. I think she could have extracted the teeth as they were not impacted. In any case, I've see n here routinely for cleaning, and annual xrays.
Lest I forget: I do have one filling, from about 6 years ago. At that point the filling was not necessary in my opnion as there was hardly a cavity. At least I couldn't see it in the oral xrays, and she said that there was "POTENTIALLY" a cavity, and recommended a filling. So, she drilled an even larger hole to fill it up! The workmanship was good. I got a white filling. For this, she charged me and my insurance company. Maybe this was an oversight, and I asked her to refund me the amount charged to me, and she gladly did that.
Overall, I recommend this dentist as I've not had any problems dealing with this dentist.