DEAR DOCTOR K: I have to have a root canal. What will happen during this procedure?
DEAR READER: You brush your teeth twice a day, but you probably don't know their inner workings. Every tooth has roots that anchor it to the jawbone. Inside the body of the tooth and inside its roots is a hollow central chamber, or canal. And inside that hollow chamber is an inner pulp containing a network of nerves, blood vessels and tissues.