Yes, dentistry has made what I would classify as "enough" advances in cavity fillings over the past century and a half. I feel that the significant decrease in mercury used in dental amalgams is enough reason by itself to hold this opinion, not to mention the fact that dentists now have much safer and more efficient tools.
In 150 years, we've made leaps and bounds in terms of scientific advancement. One of the areas where this is most obvious is dental hygiene. It used to be that people were losing teeth left and right due to cavities and other dental illnesses. Now that is much less common, so nobody need fear about having exploding teeth.
About 60 to 70 percent of U.S. adults now seek routine dental care. With expanding insurance coverage and more people living longer, this has increased the need for qualified practitioners. There are now more specialists in the field than ever before. This allows them to better help individuals address their specific dental needs and minimize the risks of gum disease.
No, dentistry has not made enough advances to cavity fillings over the years. Some good advances have been made, but filling teeth is still an archaic approach. How about nourishing and protecting all the teeth so that fillings become unnecessary? More research needs to be done to advance safer, less invasive ways to maintain and treat dental health.