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Endodontic management of a C-shaped maxillary first molar with three independent buccal root canals by using cone-beam computed tomography.

Karanxha L, Kim HJ, Hong SO, Lee W, Kim PS, Min KS - Restor Dent Endod (2012)

Bottom Line: Posttreatment image revealed 3 independent canals in the buccal root obturated efficiently to the accepted lengths in all 3 canals.Our study describes a unique C-shaped variation of the root canal system in a maxillary first molar, involving the 3 buccal canals.In addition, our study highlights the usefulness of CBCT imaging for accurate diagnosis and management of this unusual canal morphology.

View Article: PubMed Central - PubMed

Affiliation: Department of Conservative Dentistry, Wonkwang University School of Dentistry, Iksan, Korea.

ABSTRACT
The aim of this study was to present a method for endodontic management of a maxillary first molar with unusual C-shaped morphology of the buccal root verified by cone-beam computed tomography (CBCT) images. This rare anatomical variation was confirmed using CBCT, and nonsurgical endodontic treatment was performed by meticulous evaluation of the pulpal floor. Posttreatment image revealed 3 independent canals in the buccal root obturated efficiently to the accepted lengths in all 3 canals. Our study describes a unique C-shaped variation of the root canal system in a maxillary first molar, involving the 3 buccal canals. In addition, our study highlights the usefulness of CBCT imaging for accurate diagnosis and management of this unusual canal morphology.

No MeSH data available.


(a) Access cavity showing 3 separate buccal canal orifices, which are connected by isthmuses (white arrows); (b) Posttreatment periapical radiograph showing 3 distinct and independent buccal canals throughout their course.MB, mesiobuccal canal; MB-2, second mesiobuccal canal; DB, distobuccal canal.
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Figure 3: (a) Access cavity showing 3 separate buccal canal orifices, which are connected by isthmuses (white arrows); (b) Posttreatment periapical radiograph showing 3 distinct and independent buccal canals throughout their course.MB, mesiobuccal canal; MB-2, second mesiobuccal canal; DB, distobuccal canal.

Mentions: Endodontic ultrasonic tips (CPR tips, Spartan, Fenton, MO, USA) used for eliminating pulp stones and obstructions under dental operating microscope (OPMI pico Dental Microscope, Carl Zeiss, Oberkochen, Germany) revealed mesiolingual and distobuccal canals (Figure 3a). Working length was estimated by using electronic apex locator (Root ZX) and was confirmed using a radiograph. All the 4 canals were prepared using ProTaper nickel-titanium rotary instruments (Dentsply-Maillefer, Ballaigues, Switzerland) and irrigated using 2.5% sodium hypochlorite (NaOCl) solution.


Endodontic management of a C-shaped maxillary first molar with three independent buccal root canals by using cone-beam computed tomography.

Karanxha L, Kim HJ, Hong SO, Lee W, Kim PS, Min KS - Restor Dent Endod (2012)

(a) Access cavity showing 3 separate buccal canal orifices, which are connected by isthmuses (white arrows); (b) Posttreatment periapical radiograph showing 3 distinct and independent buccal canals throughout their course.MB, mesiobuccal canal; MB-2, second mesiobuccal canal; DB, distobuccal canal.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3569404&req=5

Figure 3: (a) Access cavity showing 3 separate buccal canal orifices, which are connected by isthmuses (white arrows); (b) Posttreatment periapical radiograph showing 3 distinct and independent buccal canals throughout their course.MB, mesiobuccal canal; MB-2, second mesiobuccal canal; DB, distobuccal canal.
Mentions: Endodontic ultrasonic tips (CPR tips, Spartan, Fenton, MO, USA) used for eliminating pulp stones and obstructions under dental operating microscope (OPMI pico Dental Microscope, Carl Zeiss, Oberkochen, Germany) revealed mesiolingual and distobuccal canals (Figure 3a). Working length was estimated by using electronic apex locator (Root ZX) and was confirmed using a radiograph. All the 4 canals were prepared using ProTaper nickel-titanium rotary instruments (Dentsply-Maillefer, Ballaigues, Switzerland) and irrigated using 2.5% sodium hypochlorite (NaOCl) solution.

Bottom Line: Posttreatment image revealed 3 independent canals in the buccal root obturated efficiently to the accepted lengths in all 3 canals.Our study describes a unique C-shaped variation of the root canal system in a maxillary first molar, involving the 3 buccal canals.In addition, our study highlights the usefulness of CBCT imaging for accurate diagnosis and management of this unusual canal morphology.

View Article: PubMed Central - PubMed

Affiliation: Department of Conservative Dentistry, Wonkwang University School of Dentistry, Iksan, Korea.

ABSTRACT
The aim of this study was to present a method for endodontic management of a maxillary first molar with unusual C-shaped morphology of the buccal root verified by cone-beam computed tomography (CBCT) images. This rare anatomical variation was confirmed using CBCT, and nonsurgical endodontic treatment was performed by meticulous evaluation of the pulpal floor. Posttreatment image revealed 3 independent canals in the buccal root obturated efficiently to the accepted lengths in all 3 canals. Our study describes a unique C-shaped variation of the root canal system in a maxillary first molar, involving the 3 buccal canals. In addition, our study highlights the usefulness of CBCT imaging for accurate diagnosis and management of this unusual canal morphology.

No MeSH data available.