Cameras caught Green hurling profane language in the direction of referee Lauren Holtkamp after Green was inadvertently struck in the mouth by Jerami Grant when the two collided in the second quarter of Tuesday's contest between the Oklahoma City Thunder.
With a bloodied mouth, Draymond confronted Holtkamp over the lack of a call while the referee tried to diffuse the situation by repeatedly telling him to "get out of my face." When Green pressed on, the ref slapped him with a technical foul.
Green said he will need to wear clear braces for the next couple weeks while dentists monitor his tooth.
Draymond was fined $25,000 last month for criticizing league officials.