Figure 10: (a) Inadequate straight line access resulting in the tip of the file attempting to straighten itself (red arrow). | British Dental Journal

Figure 10: (a) Inadequate straight line access resulting in the tip of the file attempting to straighten itself (red arrow).

From: A practical guide to endodontic access cavity preparation in molar teeth

Figure 10

(b) Refining the shape of the access cavity results in unimpeded, straight line access into the root canal. (c) The mesio-buccal corner of the access cavity has been modified (red arrow) to ensure straight line access into the mesiobuccal canal of this lower molar

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