A new type of modified Essix Retainer for anterior open bite retention.

The most problematic malocclusion type to retain is anterior open bite although many classical retention appliances are known. The difficulty of maintaining the occlusion arises from the lack of control over the tongue behavior and posture in open bite cases. In the current article, a 2 year follow-up of 2 open-bite patients who were retained with a new type of retention appliance, successfully, were presented.