The use of 50 percent CO2-02 in overcoming fear of dental treatment in children: a preliminary report.
D002245:Carbon Dioxide; D002648:Child; D002675:Child, Preschool; D003729:Dental Care; D003888:Desensitization, Immunologic; D005260:Female; D006801:Humans; D010100:Oxygen; D010698:Phobic Disorders / Q000628:therapy*
D002245:Carbon Dioxide; D010100:Oxygen