Dental nerve pain is usually a very bad sign, as it means the tooth requires root treatment!
An initial sign of this kind of inflammation of the dental nerve (=pulpitis) is often a sensitivity towards cold and heat, eventually leading to a constant throbbing toothache.
The tooth is sensitive to the slightest touch. After a few days, these problems usually go away, and you no longer feel any pain! But this is actually a sure sign that the dental nerve should be removed and proper root canal treatment performed, since the nerve is now dead.
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The damaged tissue begins to decay – it rots and even years later it can cause an inflammation at the root tip in the bone, necessitating a root tip resection. During root canal treatment the dentist extracts the dental nerve and cleanses the dental canal in order to then seal it up tightly!
Earlier, it was common practice to open up the affected tooth and inject a toxin into the dental nerve canal in order to kill off the nerve. Tomorrow you will find out why this used to be done and why it is not done anymore!