Learning objectives Understanding Open Bite: Recognize what an anterior open bite (AOB) is and the impact this malocclusion can have on aesthetics, speech, and chewing function. Causes & risk factors: Learn about the multifactorial causes (habits such as thumb sucking, tongue thrusting, genetic predisposition, etc.) and risk factors (e.g. mouth breathing, iatrogenic factors) for the development of an open bite. Understanding treatment options: Overview of treatment options