Tooth pain while sleeping is usually caused by acute pulpitis, which refers to acute inflammation occurring in the pulp. Patients with acute pulpitis usually have acute onset, severe pain, and difficulty locating the source of the pain. In rare cases, it may be caused by pulp calcification. Nighttime tooth pain is a typical symptom of acute pulpitis. During the day, due to high levels of stress from studying or working, lack of concentration, and reduced blood flow in the head and face when standing, the pain may not be particularly intense. However, when lying down at night, the blood supply and oxygenation to the head and face are richer, and with increased concentration, tooth pain may occur.
If acute pulpitis is caused by tooth decay, it may be necessary to grind away the decayed tooth structure and perform pulp canal drainage to remove the nerve and inflammatory tissue. After the inflammation is completely resolved and the tooth nerve is removed, a dental crown restoration can be performed. It is best to choose a full-ceramic dental crown, which is similar in color to natural teeth. After the restoration, the teeth in the mouth can resume normal chewing function. Additionally, pulp calcification may also lead to tooth pain while sleeping. Tooth calcification may be related to genetics and poor dental hygiene. When the disease occurs, it can lead to poor blood circulation in the pulp area, which is more likely to occur when lying down at night. When local nerves are ischemic or hypoxic, pain symptoms may appear. Patients can use medication such as ibuprofen under the guidance of a doctor to relieve the pain.