9. United States
DMFT Score: 1.2
At number 9 on our list of top 10 countries with the best and straightest teeth and oral health in the world we have the United States. As you can see the DMFT score of the U.S. is identical to France, but we still ranked the United States a notch above France. The reason for this is because, according to World Bank, the healthcare budget of the United States is much higher than France. As we mentioned before, a DMFT score of 1.2 is definitely remarkable, but there other countries out there who are doing much better, just keep reading to know about those countries.