Afraid to use nitrous?
D000395:Air Pollutants, Occupational / Q000009:adverse effects / Q000032:analysis; D000766:Anesthesia, Dental / Q000009:adverse effects*; D003727:Dental Auxiliaries; D003815:Dentists; D005260:Female; D006801:Humans; D008297:Male; D009609:Nitrous Oxide / Q000009:adverse effects* / Q000032:analysis; D009784:Occupational Diseases / Q000139:chemically induced
D000395:Air Pollutants, Occupational; D009609:Nitrous Oxide