Periodontal disease early symptoms are not obvious, no obvious pain, often ignored, when the symptoms are obvious has been delayed a good time for treatment, such as tooth loosening obvious or bite weakness, bite pain when the treatment is often a poor prognosis. Therefore, early detection and early treatment of periodontal disease is very important. Periodontal disease early self-diagnosis should pay attention to the following details: 1. Gum bleeding. Bleeding is seen when brushing teeth or eating fruits. 2. Dark gum color. Normal gums should be pink with thin edges and close to the tooth surface, if the gums are dark red or bright red with thick edges and separated from the tooth surface or pressure roots, it may be an inflammatory state and needs treatment. 3, heavy breath. Periodontal disease can cause bad breath and requires timely diagnosis and treatment. Periodontal disease early treatment is simple and low cost, only need to learn plaque control methods, cleaning and treatment of teeth, can be completely back to health. If the periodontal tissue is lost, the roots of the teeth are exposed, and the teeth are loosened before treatment, the prognosis is poor, and it is difficult to recover completely.