I recall one of my office colleagues when I was working in a private sector Company in Gurgaon. He was about 52 years old and started talking to me about dental care. He mentioned that all his teeth were in perfect condition, absolutely clean and without any cavity or stain whatsoever. He showed them also. While on this, he also stated that he had been totally avoiding the use of white sugar for more than 30 years. He used sugar free tea, coffee or other drinks. He consumed no sweets, except those made from jaggery.
I interestingly tried to correlate his dental health with his avoidance of white sugar.