The most common causes that necessitate a root canal are irritation and inflammation of the tooth's nerve and pulp, according to WebMD. These irritations are caused by repeated dental procedures, deep decay, a crack or c... More » Health Pain & Symptoms

During the days following a completed root canal, the tooth might feel sensitive because of inflammation, states WebMD. This discomfort can typically be solved with an over-the-counter pain medication such as Advil, Motr... More » Health Dental

Severe, persistent tooth pain, sensitivity to heat, swelling on the gum and pain when touching or biting down on a tooth are symptoms that indicate the potential need for a root canal, according to More »

A root canal infection is treated with a root canal procedure, which entails removing damaged pulp and nerve tissue inside the tooth, explains WebMD. Although the root canal procedure is typically considered highly painf... More »

A root canal procedure entails drilling through the tooth enamel and using files to dig and scrape out all the pulp and nerve tissue inside the tooth, explains WebMD. These files are used in a series of progressively lar... More »

Causes of facial nerve pain include an abscessed tooth, sinusitis and trigeminal neuralgia, according to WebMD. Injuries to the face and temporomandibular joint disorders also cause facial nerve pain. More » Health Pain & Symptoms

A root canal is recommended when decay, injury or repeated dental work causes a tooth's pulp to become infected or inflamed. The procedure is performed by a specialist called an endodontist. In most cases, patients repor... More »