What happens if you leave overbite untreated?

If left untreated, an overbite could cause significant health complications. These include irreparable damage to teeth from abnormal positioning and possible jaw pain, severe headaches, including temporomandibular joint disorders (TMJ). Other overbite complications include sleep apnea, tooth decay (including cavities), gum diseases, worn tooth enamel, discomfort or pain while eating, difficulty in speaking, trouble with fully opening or closing mouth etc. An untreated overbite could also dramatically alter the facial structure and lead to psychological issues like low self-esteem.