Receding gums
When you have gingivitis for some time and do not pay attention to your symptoms, the next step of gum disease is called periodontal disease. In this stage, one of the main characteristics is having receding gums. In other words, they start exposing the roots of your teeth, and you can see the difference between the teeth that were previously covered with gums. Smoking, diabetes, HIV, and certain hormonal changes may also contribute to this problem, but you should visit your dentist if you have this problem because periodontal disease is the first place to look at.