We administered hainosankyuto to seven patients before the operation to prevent surgical site infection in surgical dental treatment, including surgical periodontal therapy, surgical endodontics and tooth extraction. They had previously suffered from side effects of antibiotics. Surgical dental treatment was performed under local anesthesia. No surgical site infection occurred after the operation. The patient’s clinical parameters are currently stable. No recurrence for a year after the inflammatory symptoms disappeared was defined as short-term cure. There have been few clinical reports on surgical dental treatment with Kampo medicine alone, such as hainosankyuto, without using antibacterial drugs. These results suggested that surgical dental treatment using hainosankyuto could be one of the effective treatments where antibiotics cannot be used.

Bruxism is a common condition often seen in daily practice. Although interocclusal appliances are often used, there are no established treatments to eliminate bruxism. Here, we report two patients who complained of bruxism and insomnia. Based on the diagnosis of Kampo medicine, we thought that stress was involved in the background of both cases. Therefore, we prescribed them yokukansan, and their symptoms improved. These results suggest that yokukansan may be effective for sleep bruxism and insomnia.

The number of patients with taste disorder and halitosis has recently increased in Japan. Some of these patients have no abnormalities identified in blood tests and no apparent dental problems, so they are diagnosed with unidentified complaints. In this paper, we report 2 patients who were diagnosed with psychogenic taste disorder and pseudohalitosis. Kampo medical examination found their symptoms to be related to qi deficiency. They were prescribed 5g of hochuekkito extract per day, and their symptoms were relieved. These results suggest that hochuekkito is effective against unidentified complaints such as psychogenic taste disorder and pseudohalitosis.