In fact, there is no age limit for dental floss. As long as there are more than two adjacent teeth in the mouth, you must start using dental floss, otherwise food residues and bacteria will stay between the teeth and induce dental caries and gum inflammation.
It is recommended that starting from the age of 2, parents should assist their children in oral cleaning and teach dental flossing skills.
It is recommended to scrape teeth with a squeaking sound before finishing cleaning, rinse your mouth in time, flush the scraped plaque out of your mouth, and wash your hands.
You don’t have to worry about pulling off the dental fillings and crowns when you use dental floss.
If it is really loose, it is probably a new problem with the teeth, and you need to find a dentist for treatment.