Nitrous Oxide Monitoring Certificate

Only Registered Dental Assistants in Texas may apply for an optional certificate to be able to monitor patients receiving nitrous oxide/oxygen inhalation conscious sedation under the direct supervision of a Texas licensed dentist. 

To obtain a Nitrous Oxide Monitoring Certification, an applicant must have completed a minimum of 8 hours of didactic education and testing in monitoring the administration of nitrous oxide taken through a CODA-accredited dental, dental hygiene or dental assisting program, approved by the TSBDE. The course taken to satisfy the requirements is valid for five (5) years from the date of course completion for certificate purposes. 


  • Complete the TSBDE Nitrous Oxide Monitoring application and pay fee. Link for application
  • Hold a current RDA certification by TSBDE
  • Have completed and passed TSBDE board approved Nitrous Oxide Monitoring course.
  • Have successfully completed a current hands-on course in basic life support (BLS)
  • A  2 x 2 passport photo
  • Copy of driver’s license, naturalization papers, or passport
  • National Practitioner Data Bank (NPDB) self-query report. The report results must remain in the original sealed envelope and be included with your application and is only valid for 60 days. Link to NPDB.
  • Complete the application form and mail copies of everything to:
    Texas State Board of Dental Examiners | 1801 Congress Avenue, Suite 8.600 | Austin, Texas 78701

Once your application has been approved, an approval letter will be mailed out to your mailing address on file.  Please allow 7-10 business days to receive this letter via mail.  When you next renew, the nitrous oxide monitoring endorsement will be renewed at the same time your registration is renewed.  It does not require a separate renewal.

Note:  a licensee/registrant is required to notify the TSBDE of any change of address within 60 days.  This includes a work address or mailing Address.  Changes may be emailed to the Licensing division at  Provide your full name, registration type, the last four (4) numbers of your Social Security Number, and your new mailing address.

Nitrous Oxide Monitoring course providers