DR ARMEN TARANYAN / SCIENCE PHOTO LIBRARY DR ARMEN TARANYAN / SCIENCE PHOTO LIBRARY
Root canal surgery. Close-up of dental tools being used to extract tooth pulp from an upper canine tooth during root canal surgery. The tooth had decayed to the point where surgery was needed. Root canal dentistry involves drilling, cleaning, disinfecting and filling the root canal of a tooth. The root canal is the area, inside the base of a tooth, that contains the living root.
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