Open bite. Animation showing an open bite malocclusion (misalignment of the teeth). This condition, also known as neutrocclusion (Class I), has been caused by thumb sucking. Malocclusions can cause difficulty chewing and lead to inflammation of the temporomandibular joint, the joint between the lower jaw and skull. Treatment is with orthodontics to create a normal occlusion (seen at end).HD master is flattened onto a black background, as seen in this preview. The original file has a transparent alpha channel and is available as the HD master of clip K003 3775.