What You Should Know About Gum Disease Part 6. I continue the series on gum disease. This is a serious problem that people really, really need to know more about and understand. You see most people have it. Ask any dental hygienist or dentist, they will tell you the harsh reality. And since gum disease is the primary reason that people lose teeth — which leads to the need for expensive implants and other treatments – it is important to develop the awareness that you need to protect yourself and your family.