Periodontal plugging agents are special dressings used after periodontal surgery and are placed over the surface of the operative area after periodontal surgery to protect the wound and also to provide pressure to stop bleeding, stop pain and fix the gingival flap. However, it has also been reported that the wound Kl can heal normally without the use of plugging agents after surgery, as long as the plaque can be controlled. The types of plugging agents, composition, blending and use are as follows: (a) plugging agents containing clove oil are powder and liquid components blended and used. Powder ingredients include zinc oxide and rosin, liquid ingredients include clove oil and muscimol, when using the appropriate amount of powder and liquid on a dry sterile glass plate, using a mixing knife to gradually add a small amount of powder and liquid mixing, until the hard dough, can be used. When using, first stop the bleeding of the operation area, isolate the wet, form the plugging agent into a thin strip, apply it to the surface of the operation area, pull the lip or cheek to shape the whole, and let go of the ligament to avoid the movement of the ligament after the plugging agent is hard and solid. In order to achieve a better fixation effect, it can also be used to roll the plugging agent into several small cones, first from the buccal side, the small conical pieces of plugging agent will be placed one by one in the interdental space to press the gingival papilla, and then a long thin strip will be placed on the buccal side to connect the plugging agent of each tooth surface, and the lingual side will be placed according to the same method, this method can ensure that the gingival papilla will be attached to the bone surface, which is beneficial to healing. If the procedure includes the last molar, the plugging agent should be bent into a U-shape and wrapped around the distal center. Immediately after placement of the plug, the lip and cheek should be pulled for contouring and any excess plug that interferes with occlusion should be removed. Be careful not to squeeze the plug into the underside of the gingival flap and interfere with wound healing. Zinc oxide is slightly bactericidal and astringent, can protect the tissue; rosin is easily soluble in clove oil, and cured with zinc oxide, with viscosity and toughness; tannic acid has an astringent effect; cellulose is conducive to forming; muscimol has a bactericidal effect; but clove oil has a strong odor, occasionally people are allergic to it, and some people think that clove oil is not conducive to tissue healing, therefore, foreign countries have used plugging agents that do not contain clove oil. (B) does not contain clove oil plug treatment agent abroad such plug treatment agent has been commercialized, divided into two tubes, a tube containing a mixture of zinc oxide, grease, gum and mycotoxin, the other tube contains unsaturated fatty acids and antibacterial agents. The two components are extruded in equal lengths, mixed and used. It is easy to operate, non-irritating to gingival tissue, flexible and moderate after curing, and comfortable for patients.