Teeth have nerves. That's why they can feel hot and cold, sensitivity and pain. The nerve inside a tooth is called dental pulp, which contains large nerve trunks and blood vessels. Alos this is where toothache comes from. When decays or cracks involve nerves, severe toothache may happen, especially at night time, which often ends up with a dental emergency . If the tooth can be saved, your dentist will recommend root canal treatment . The first step of root canal treatment

Dental abrasion is the loss of tooth structure due to mechanical force by a foreign element. The most common source of this wearing is toothbrushes. But it also can be dental floss, toothpicks and any dental appliances. In this case, the patient came in as an dental emergency , complaining of severe toothache and shooting pain. He brushed so heavily that all the enamel and dentine was brushed away, and eventually exposed the nerve. Unfortunately, he couldn't afford root cana