Diabetic patients with substandard blood sugar control often have the following risks for tooth extraction, which can cause periodontitis, radiculitis, pulpitis and maxillofacial infection, and in serious cases, it can lead to systemic infection and poisoning symptoms, so before tooth extraction, blood sugar must be monitored, and if fasting blood sugar is controlled below 7 mmol/L, 2 hours after meal blood sugar is controlled below 10 mmol/L, and there is no periodontal infection Tooth extraction treatment can be performed. If the blood glucose does not meet the above-mentioned standards and there is periodontal infection, it is necessary to actively adjust the glucose-lowering medication to make the blood glucose control reach the standard, and at the same time actively treat the anti-infection, so that the tooth extraction can be performed only after the blood glucose control is stable and the inflammation is controlled, thus reducing the occurrence of related risks.