Look at the development of price and quality of something that is outside the regulated medical system, like eg Lasik, and everything within that system. Its like night and day.
If we had proper competition and price discovery, things would be much better.
On the other hand, dental work, especially anything above basic filings, are prohibitively expensive. I'd say Lasik is the exception, not the rule.
Are you under the impression that dentists are under competitive pressure? The labour supply is artificially limited, similar to other doctor specialisations.
Dentists are only slightly more honest as a profession than Chiropractors. More than half of the one's you meet are outright fraudsters/charlatans/scammers. Most who work in that business will reincarnate as cockroaches or durian fruits.
Are you in the US? This is not my experience at all. I've paid in US <2000 for dental invasive surgery including general anesthesia straight cash. That's approaching prices for medical care in Mexico.