According to the journal Medical News Today, an estimated 88 percent of people over the age of 65 have receding gums. Though the condition can be caused by many things, it is most commonly caused by physical wear and inflammation of the gums. In addition to the high numbers of seniors with receding gums, a growing number of younger Americans are experiencing receding gums at earlier ages as well, thanks to everything from braces to overly vigorous tooth brushing.