Page 19 - The Beauty and Sorrow in Endodontics-Prologue
P. 19
Case 7
Expect an additional canal if the file is not centered at the middle
of the root
(Fig 7A)
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When checking the working length (WL) of 16
mesiobuccal canal, note that the file was not
located at the centre of the corresponding
root, another canal was suspected to be
present at the opposite side of where the file
offsets to.
(Fig 7B) (Fig 7C)
Post-obturation radiograph confirmed Even within a single tooth, unique and
suspicion of the additional canal. complex root canal systems can be
present in each individual root.
Three roots (mesiobuccal, distobuccal, palatal) were identified on the
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pre-operative radiograph of the right upper first molar ( 16). The main canal should be
located at the centre of each of those roots if only one canal is present in each. However,
when checking the working length (WL) of the mesiobuccal canal, the file seen at the
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