Over time, the bacterial infection that causes gum disease can also cause loss of the bone that anchors the teeth, and the inflammation from the infection may set the stage for other serious diseases. Any plaque here that isn't removed then slowly starts to harden to something called tartar or calculus. If this tartar continues to build up, then further irritation and inflammation around the gum occurs. Gum infection is extremely common. It can happen at any age, although it's rare for it to occur to a significant degree in children. Many people with gum disease are unaware they have a problem because it's often 'silent' with no pain or symptoms. Gum disease always requires treatment by a dentist or dental hygienist. There are various types of treatment available depending on the severity of gum disease.