Missouri Dental Assistant Requirements

Each state has different requirements for dental assistants. This page includes links to all the information you need to understand the requirements for dental assistants in this state. View the different dental assisting levels, along with the requirements for each. You can also view the allowable duties at each level.

Missouri Requirements

Dental Assistant Levels and Requirements


Dental Assistant

Expanded Functions Dental Assistant

Dental Assistant Requirements

A dental assistant in the state of Missouri may perform basic supportive dental procedures specified by the state dental practice act under the direct supervision of a licensed dentist.

There are no education or training requirements for this level of dental assisting.

A dental assistant or holder of DANB’s CDA certification may, under direct supervision, assist in the administration of and monitor nitrous oxide analgesia if he or she meets the following requirements:

1. Complete one of the following:

a. Successfully complete formal certified training in a course approved by the Missouri Dental Board AND pass an approved competency test regarding clinical and didactic training OR

b. Submit proof to the Missouri Dental Board of having been certified in another state to assist the administration of and monitoring of nitrous oxide subsequent to equivalent training and testing


2. Obtain a permit from the Missouri Dental Board