Dental emergencies should never be ignored, especially when you are having severe pain, bleeding, or have experienced trauma. If left untreated, these conditions have the potential to become serious medical problems. For example, an untreated infected tooth has the potential to spread infection to other areas of the body, such as the eye or sinus. In extreme cases, an untreated dental abscess can lead to blood infections or a brain abscess. These are a few of the many reasons why it is extremely important that dental pain should be urgently addressed.