Root_canal

For the root canal operation, see endodontic therapy.

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

Root canals is the commonly used term for the main canals within the dentin of the tooth. These are part of the natural cavity within a tooth that consists of the dental pulp chamber, the main canals, and sometimes more intricate anatomical branches that may connect the root canals to each other or to the root surface of the tooth. Root canals are filled with a highly vascularized, loose connective tissue, the dental pulp. This sometimes becomes infected and inflamed, generally due to caries or tooth fractures that allow microorganisms, mostly bacteria from the oral flora or their byproducts, access to the pulp chamber or the root canals; the infected tissue is removed by a surgical intervention known as endodontic therapy and commonly called \'a root canal\'.

Contents 1 Tooth structure 2 See also 3 References 4 External links

Tooth structure

An X-Ray of a recently performed Root canal procedure. The root was forming an abscess (infection), and as a result a bulb of some of the canal filling \'leaked\' into the abscess

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.

See also

• Endodontic therapy
• Dental pulp
• Toothache
• Gum inflammation
• Dental implant

References

This article does not cite any references or sources. (October 2007) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed.

External links

• 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.

Wikimedia Commons has media related to:

Root canal

v • d • e Endodontology
Diagnostic tests	Electric pulp test - Thermal test - Percussion test
Pulpal Diagnosis	External resorption - Internal resorption - Irreversible pulpitis - Reversible pulpitis - Necrotic pulp - Pink tooth of Mummery
Periapical Diagnosis	Acute apical periodontitis - Chronic apical periodontitis - Perio-endo lesion - Fistula - Periapical abscess - Phoenix abscess - Vertical root fracture
Anatomy	Apical foramen - Pulp - Pulp chamber - Root canal
Armamentarium and material	Amalgam - Apex locator - Files and reamers - Gutta-percha - Dental dam - Rotary technology - Sodium hypochlorite - Silver points - Eucalyptol - Saline - EDTA
Endodontic procedures	Apicoectomy - Endodontic therapy - Internal bleaching - Retreatment
Other specialties	Orthodontology - Periodontology - Prosthodontology

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