The aim of our study was multi-faceted study of status the psychological of young people suffering from bruxism. A total of 101 people (44 men and 57 women) divided into 4 groups. The study of mental states and personality traits included the Freiburg Personality Inventory (FPI). The majority of subjects characterized by high reactivity and emotional lability, the surveyed with day and combined bruxism is more pronounced symptoms of irritability, tension, and increased excitability. The best approach when examining young patients with bruxism should be based on accounting data and anamnestic examination not only dentists, but also psychologists and psychotherapists to identify the "background" of mental states and personality traits and correction of sharp variations by special methods.