In 2001, the World Health Organization listed oral health as one of the ten standards of human health, and put forward the concept of oral health [8020], that is, at the age of 80, there should be 20 teeth available. In 2010, a survey on the oral conditions of nearly 20,000 people over 60 years old in 31 provinces of our country found that the average number of teeth lost was 10.7 for people over 60 years old and 18.8 for people over 80 years old. Only 18.4% of people over 80 years old who could keep 20 real teeth were old and lost teeth? On one occasion, I solemnly introduced the 8020 concept to my elders. After hearing this, Read More …