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Rare root canal morphology of maxillary second molars: A report of three cases
Takayoshi Nagahara1,2, Katsuhiro Takeda2, Keinoshin Wada3
1Nippon Kokan Fukuyama Hospital Hiroshima Japan.
Key Clinical Message:
Endodontists should be aware that some maxillary second molars can have more than three roots. If any unusual anatomical features are detected during dental radiography or endodontic procedures, it is necessary to conduct cone-beam computed tomography (CBCT) scanning to prevent procedural mishaps.
Abstract:
CBCT can provide three-dimensional reconstructed images of the root canal system. With the help of CBCT, variations in tooth root number and root canal morphology, such as extra canals, apical ramifications, apical deltas, and lateral canals, can be identified. Knowledge of the variations is very important for the success of endodontic treatment. This report suggests that endodontists must not assume that a MSM has only three tooth roots, which is the most prevalent number.
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