What is a root canal treatment and does it hurt?
The centre of all teeth contains a chamber that extends down the length of each root that houses the nerve and is filled with blood. This is called the pulp. If the tooth is injured by decay, trauma or cracked this can cause tooth ache as the nerve becomes involved. This might be the classic dull ache that keeps you awake at night, it might be a short, sharp pain on biting or a lingering discomfort after a cold drink.
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