Studies have shown that oral health is closely related to overall health, especially in the management of chronic diseases such as diabetes, cardiovascular disease, and respiratory diseases. For example, chronic periodontal disease may make diabetes control more difficult because inflammation may affect the action of insulin and glucose metabolism. Patients with periodontal disease may face a higher risk of heart disease. In addition, the worsening of oral chronic diseases has been confirmed in many studies. Therefore, strengthening oral health education for patients and regular oral examinations can provide support for the management of chronic diseases and improve the overall health of patients. In future studies, exploring the effects of oral health interventions on patients with chronic diseases may reveal more potential improvement strategies. This will not only help improve the quality of life of patients, but also help reduce medical costs