The alveolar ridge is the area of the alveolar bone where the original tooth is located after the tooth is lost or missing in the oral cavity. The teeth and the alveolar bone are interdependent. When teeth are missing, the height of the alveolar bone decreases and the width narrows, forming a “mountain ridge”, which is called the alveolar ridge, and has the function of bearing the force of the teeth and supporting the denture. The alveolar ridge is the area where the teeth bear the force. Teeth grow in the alveolar ridge, when chewing, the teeth’s force will be transmitted to the alveolar ridge, will play a stimulating role in the growth of the alveolar ridge, can promote better growth and development of the alveolar ridge, but also is the main area to support the denture. Normally, you should pay attention to protect the alveolar ridge, avoid brushing vigorously, chewing hard food, and do a good job of oral cleaning.