Wear dentures gums bleeding mainly due to the following reasons: 1, active dentures due to local stimulation caused by gum ulceration, bleeding, may be due to denture high points, sharp points caused by the recommended grinding modification; 2, fixed dentures gum bleeding due to the longer edge of the crown, stimulate the gingival sulcus, which in turn caused the part of the gums recurrently red, swollen and bleeding; 3, the patient has a basic disease or long-term use of anticoagulant drugs, which can also make bleeding The situation is aggravated; 4, porcelain teeth axis surface design is poor, poor connection, can cause gingival papillitis, gum swelling and bleeding; 5, the patient’s oral hygiene is poor, more calculus, or suffering from chronic gingivitis, periodontitis, are prone to cause bleeding.