Root canal procedure: unhealthy tooth, drilling, filing with endofile, rubber filling and crown

An X-ray image showing right mandibular first molar which has performed root canal.

Tooth structure

At the center of a tooth is a hollow area that houses soft tissue, known as pulp. This hollow area contains a relatively wide space towards the chewing surface of the tooth called the pulp chamber. This chamber is connected to the tip of the root of the tooth via thin hollow pipe-like canals—hence, the term "root canal". Human teeth normally have one to four canals, with teeth toward the back of the mouth having the most. These canals run through the center of the roots like pencil lead runs through the length of a pencil. The tooth receives nutrition through the blood vessels and nerves traversing these canals.

External links

• The Root Canal procedure - A detailed step by step description of the root canal procedure
• American Association of Endodontists
• An animated review of root canal treatment.
• Root Canals at WebMD
• Video on Direct Pulp Capping, an alternative to Root Canal therapy
• Comparison of antibacterial and toxic effects of various root canal irrigants.

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