Sometimes, decay invades the pulp, the centre of the tooth, and root canal treatment may be performed. The pulp is removed, as well as the nerves and blood vessels, and an antiseptic solution is used to sterilize the cavity. If infection within the tooth is severe, a temporary filling may be inserted for a few days before the cavity is sterilized again. The root canals and the decayed area of the tooth are then filled.
From the 2010 revision of the Complete Home Medical Guide © Dorling Kindersley Limited.
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