Being on the technical end of cosmetic and restorative dentistry I see and hear all kinds of horror stories. The markup on crowns is amazing as most dentists pay 50-150 per crown to the lab depending on the metal used or if using the newish no metal zirconium crowns. They double their crown regular crown fee for an implant crown. And if they send their crown impressions to an offshore lab in China. Vietnam or the Phillipines they pay 25-30 dollars for a crown. As far as quality be cautious. I have worked with about 25 dentists over the past years but I would only go to 5.