Periodontal disease, or gum disease, affects the gums and can lead to bleeding gums, bad breath, loss of teeth and bone, and tooth sensitivity. The early stages of gum disease, called gingivitis, can be treated before it causes further issues. Gum disease is typically caused by plaque and bacteria buildup that is not properly addresses. Advanced gum disease can lead to tooth and bone loss, so it is important to address periodontal disease as soon as it is detected. Brushing and flossing regularly and visiting the dentist every six months can help prevent gum disease from forming.