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Azerbaycan Saytlari

 »  Home  »  Endodontic Articles 3  »  C-shaped root canal configuration in maxillary first molars
C-shaped root canal configuration in maxillary first molars
Report 3.



A 17-year-old Caucasian female patient was referred for endodontic treatment of her maxillary right first molar. The patient had not received dental treatment for more than 10 years. The contralateral maxillary first molar was severely decayed. Only two root fragments of approximately 4–5 millimetres remained. After reconsulting the referring dentist, it was decided to extract the tooth. The radiograph clearly demonstrated the palatal and mesiobuccal root. The distobuccal root-end was not identified and it was believed to be superimposed on the palatal root (Fig. 9). The extracted tooth appeared to have two separate roots (Fig. 10a). Upon sectioning through the crown, two root canals were identified in the mesiobuccal root and a deep semilunar groove extending from the palatal to the distobuccal aspects of the cavity was noted (Fig. 10b). Neither the palatal nor the distobuccal root canal orifices were identified. A section through the middle and apical third of the roots confirmed the presence of two mesiobuccal canals and a combined palatal and distobuccal canal merging in one C-shaped canal (Fig. 11).

rpreoperative view of the maxillary right first molar
Figure 9. Case 3: preoperative view of the maxillary right first molar. Carious pulp exposure necessitated extraction.

distal view on the extracted tooth
Figure 10. Case 3: (a) distal view on the extracted tooth. Note the presence of only two roots; (b) horizontal section through the pulp chamber showing two orifices in the mesiobuccal root and a semilunar opening connecting the palatal with the distobuccal canal.

horizontal section through the middle third of the roots
Figure 11. Case 3: (a) horizontal section through the middle third of the roots; (b) horizontal section through the apical third of the roots.