Psychological characteristics of Chinese patients with genuine halitosis

The present case-control study aimed to compare the psychological status of patients with and without halitosis, and investigate the association between psychological disorders and halitosis.

Patients who complained about bad breath and diagnosed with genuine halitosis were assigned to the halitosis group, while patients without genuine halitosis were assigned to the control group (n = 106, each group). Information on the demographics and Symptom Checklist-90 (SCL-90) of participants was collected. The organoleptic score and Halimeter measurement were used to measure halitosis.

The mean SCL-90 score of participants in the halitosis group (0.63) was significantly greater than that in the control group (0.48) (p = .002). The scores of the domains of interpersonal sensitivity, anxiety, depression, and paranoid ideation were found to be significantly different between the two groups (p < .05). However, there were no significant differences in SCL-90 scores between the mild and moderate-severe halitosis groups (p = .479).

The psychological status of genuine halitosis patients was significantly worse than normal patients without halitosis complaint and also without halitosis. The main problems were in the aspects of interpersonal sensitivity, anxiety, depression, and paranoia. However, the negative impact was not related to the severity of halitosis.