Advanced disc displacement (DD) is often observed on the shorter side of the mandible in skeletal asymmetry cases. Over time, more information on the influence of DD on mandibular growth has been accumulated. Advancement in imaging techniques, such as MRI and CBCT allows us to evaluate the TMJ status objectively. Since DD is prevalent in adolescent pre-orthodontic patients, we, as orthodontists, need to equip ourselves with the knowledge to treat these patients successfully. In this presentation, I will discuss how to handle DD patients orthodontically using three sisters’ cases, where two of them are suffering from advanced DD and the youngest sister does not have DD.
Evaluate the joint problems from MRI and CBCT images.
Recognize the progression of DD and the difference in mandibular growth between normal TMJ and joints with advanced DD.
Evaluate treatment mechanics that are catered toward specific joint status.