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Hi, I'm Dr. Craig Anderson.

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I get a lot of questions around here.

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Probably the most popular one is what's a root canal?

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So what a root canal is,

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if you take a horizontal cross section through the tooth,

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the center is hollow like a pipe,

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and I go down the center of that pipe.

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I clean out the length of the pipe, the width of the pipe,

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I dry the center, and then I cement

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the final filling material.

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It is a rubber inert called gunna percha,

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and then the permanent restoration ultimately gets placed

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either a permanent filling or a crown.

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It depends on the set of circumstances

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that your tooth thick dictates.

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And so there you go. That's what a root canal is.