Patients with food embedment in the clinic can account for about 30% of the restorative dentistry clinic, such patients eat, especially when eating vegetables and lean meat containing a large amount of fiber, food is constantly stuffed into the gap, patients feel distended, painful, people have to use toothpicks to pick teeth many times, both loss of decency, but not smoothly remove the embedded food, this situation is generally seen in the back teeth, middle-aged and elderly patients with more. The problem comes out in the past, first of all, the gum swelling, bleeding, pain causes inflammation of gum and periodontal, and the food piled up in the gap of teeth decay, ferment, produce oral odor, bacteria breeding, acid production erode tooth enamel and dentin, form adjacent surface caries, then further development of tooth root around the alveolar bone in the role of inflammation resorption, destruction, recession, resulting in root exposure, dental allergy, at this time In case of cold or sweet tooth, the tooth will be sore and painful. If the resorption and destruction of the alveolar bone exceeds 1/2 of the root length, it will cause the tooth to loosen, tilt, and shift, and the affected tooth will not dare to chew food. The clinical treatment plan is to take different approaches depending on the situation. For the food embedment caused by the molar cusp of the opposing tooth, the food embedment caused by the excessive wear of the jaw plane can be solved by jaw adjustment; for the food embedment caused by the cavity of the adjacent surface of the tooth can be solved by filling the cavity; for the food embedment caused by the gap between the teeth can be solved by making an anti-embedding device, full crown or joint crown, and also can be solved by designing a joint carabiner and gap carabiner on it. Of course, gum and periodontal inflammation need to be treated by periodontology. For teeth with severe alveolar bone resorption and excessive looseness, we can splint them and consider extracting them only if they are really untreatable.