What causes dead tooth pain?

A tooth that has been completely root canal treated and is dead should not be felt. If this is the case, you should check whether the filling in the tooth is not too high (this leads to overloading the tooth and, as a result, to its feeling and pain). A small correction of the filling is enough to make the discomfort go away. It is also very important that the channels are filled using modern materials and equipment. A dead tooth can also hurt immediately after treatment – the pain is then a result of irritation of the periapical tissues. In such a case, the discomfort goes away on its own after a few days. Very often, the cause of the feeling of a dead tooth is an incompletely filled one of the tooth’s channels, an additional channel or an unusually split channel. An X-ray of the tooth can help determine the cause of the discomfort. Unfortunately, not everything is always visible on it (it shows the tooth only in two dimensions, and the channels can overlap). If the image obtained is unclear, the doctor reopens the tooth and checks its channels. He can also use a special microscope that allows for the detection of an additional channel, invisible on the X-ray.

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