Dr. Watanabe was/is known in town as an expensive, but very good dentist. This is why I trusted him (and his junior associate) with the crowns on my front teeth.
One of the teeth was nearly ruined the associate. For some reason, the associate saw it fit to greatly widen the tooth's root canal, hardly leaving any tooth tissue to build upon; and to cement into it a very short post (which, years later, had to be completely redone, with the risk of breaking and loosing the front tooth.) From that point on, Dr. Watanabe was the one working on it.
Dr. Watanabe's crowns were great, cosmetically. However, in the following years, they've been falling off at the most socially inappropriate moments, 7 or 8 times. Dr. Watanabe blamed it on my bite. He's cemented them back at no charge for about 6 times, then he refused to do any further dental work for free. At which point I changed the dentist. The new dentist did not find any problems with my bite. He redid the crowns from scratch (a few thousand $$ out of my pocket). The new crowns were not nearly as pretty, but they stayed put.