The effects of jaw misalignment are physical and emotional. When the condition is severe it can interfere with eating, breathing, sleeping and speech, and cause discomfort and pain even when the jaw isn't moving. This is because the joint where the upper and lower jaw meet is complex, and when it isn't able to function properly, chronic pain is often the result. Children with misaligned jaws can encounter teasing from their peers, and even if they don't, their underbite or overbite may make them self-conscious. Dentists and orthodontists call a mismatched bite "malocclusion," and the treatments include orthodontic work, cosmetic dentistry and surgery, depending on the severity of the malocclusion.