But as in every job dentists also feel pressured to point out other people's lack of quality work to promote their own. You'll see this in the IT guy who immediately recognizes that whatever the previous one did on your computer was amateurish and they can do it better, same with the electrician, the plumber, the mechanic, the plastic surgeon, etc.

After college I worked at the computing lab. Someone started to talk about OOP. One dude said that OO was one thing; the other contradicted saying it was another thing. They started to debate about what said things were really .. they never reached any sort of conclusion.

Medicine isn't different. Sometimes I think we need a 2-tiers doctor meeting where you can have at least 2 different opinions in one go.

  I've been to another dentist and they said
  things completely different. I don't 
  understand how two professionals can draw 
  polar opposite conclusions.

I know they have tumor boards for cancers and such where they try to arrive at a consensus plan of treatment for an individual patient.[1]

Surely there are such solutions for dental / other medical issues, right?

Somewhat tangential from all this, I'm amazed that in this day and age we still have such a hit or miss approach to treating patients. Its mind blowing how little our medicine has advanced in some aspects despite cutting edge innovations.

[1]

What Is a Tumor Board? An Expert Q&A

https://www.cancer.net/blog/2017-07/what-tumor-board-expert-...

Source: a dentist.

" Some dental professionals have questioned this practice in the first decade of the twenty-first century.[1][2] The use of a sharp explorer to diagnose caries in pit and fissure sites is no longer recommended and clinicians instead should rely on "sharp eyes and a blunt explorer or probe." Penetration by a sharp explorer can actually cause cavitation in areas that are remineralizing or could be remineralized. "