Firstly, it is critical to realize that different dentists are different. Most people do not realize this and find a dentist based solely on convenience, a dentist near me. This is a HUGE mistake.
It is human nature to be different. Just like in any other field ( medical doctor, lawyer, accountant, investment advisor, plumber, electrician, hockey player, baseball player…) most are average, some are below average, some are above average and a few are in the extremes: the best dentist or the worst dentist.