It has the effect of nourishing Yin and reducing fire, subduing swelling and relieving pain. To use, mix with water and rub on the gums. It is made up of tortoise shell, green salt, Rhizoma Ligustici Chuanxiong, Radix et Rhizoma Cyperiata, Lotus Leaf, Pepper, Hibiscus Root Pi and Angelica Dahuricae. It is suitable for chronic periodontitis, which can be seen as loosening of teeth, weak bite, exposed gums and red, swollen and bleeding gums. In the tooth-solidifying powder, tortoise shell is salty, sweet and slightly cold in nature, which can nourish yin and submerge yang, benefit the kidney and strengthen the bones, etc. The salty and cold nature of Da Qing Salt can diarrhea, cool the blood, brighten the eyes and moisten the dryness, etc.; Rhizoma Ligustici Chuanxiong can invigorate the blood and promote qi, dispel wind and relieve pain. Combined with other drugs in the formula, it can nourish Yin and reduce fire, subdue swelling and relieve pain. It should be noted that individual patients may have swollen and painful gums and mucous membranes, dry mouth, nausea and other symptoms. Pregnant women should be cautious. Clinical contraindications and adverse reactions are not clear, it is recommended to use under the guidance of a professional doctor.