The corruption and over billing and complete abandoning of US certified and competent dental laboratories in favor of unregulated Chinese prosthetics manufacturing is why I decided to retire. After 40+ years.
I was operating out of a free dental surgery clinic for a few months after I retired, but that ended soon after - the unhinged and ungrateful and downright awful patients who came for free care destroyed any joy I might have felt being of service. It was seriously disheartening.
Notice that the so called "holistic dental" communities are rife with anti-vaxxers, frauds, conspiracy nuts, and MAGA - they are anti fluoride conspiracy nuts also.
The Story of Fluoridation
It started as an observation, that soon took the shape of an idea. It ended, five decades later, as a scientific revolution that shot dentistry into the forefront of preventive medicine. This is the story of how dental science discovered-and ultimately proved to the world-that fluoride, a mineral found in rocks and soil, prevents tooth decay. Although dental caries remains a public health worry, it is no longer the unbridled problem it once was, thanks to fluoride.
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https://www.nidcr.nih.gov/health-info/fluoride/the-story-of-fluoridation