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[Psychological research in dentistry].

The comprehensive review of literature on psychological research in dentistry is provided. At least 25% of adults are highly afraid of dentistry. The phenomenology of fear of dental treatment is described. The feared experiences are many, including most frequently, pain. Several studies have shown that anxious patients experience less pain during treatment than they expect. Expectations of pain are highly resistant to change. The use of psychological treatment to reduce psychological stress as well as to prevent onset and maintenance of anxiety during dental procedures is described.