The most common causes of tooth pain and tooth loosening in daily life are periodontitis, hidden tooth fracture, or acute alveolar abscess and acute periodontal abscess. If the tooth pain and tooth loosening are caused by periodontitis, usually accompanied by localized gum redness and congestion, you can take oral amoxicillin dispersible tablets and metronidazole tablets, and you need to go to the stomatology department of the hospital for full-mouth scaling and subgingival scaling. If the tooth pain and tooth loosening is caused by a cryptic fracture, dental radiographs of the affected tooth will be required. If the fracture is too extensive, it is not valuable and is usually extracted, whereas if the fracture does not reach the pulp chamber, root canal treatment can be performed. Acute alveolar abscesses and acute periodontal abscesses require incision and drainage, and the loose tooth will gradually return to its original level after 7-15 days of anti-infective treatment.