Restor Dent Endod.  2017 Feb;42(1):60-64. 10.5395/rde.2017.42.1.60.

Maxillary first molar with 7 root canals diagnosed using cone-beam computed tomography

• Rodrigues
• Braitt AH
• Galvão BF
• da Silva E

• KMID: 2367323
• DOI: http://doi.org/10.5395/rde.2017.42.1.60

Abstract

Root canal anatomy is complex, and the recognition of anatomic variations could be a challenge for clinicians. This case report describes the importance of cone beam computed tomographyic (CBCT) imaging during endodontic treatment. A 23 year old woman was referred by her general dental practitioner with the chief complaint of spontaneous pain in her right posterior maxilla. From the clinical and radiographic findings, a diagnosis of symptomatic irreversible pulpitis was made and endodontic treatment was suggested to the patient. The patient underwent CBCT examination, and CBCT scan slices revealed seven canals: three mesiobuccal (MB1, MB2, and MB3), two distobuccal (DB1 and DB2), and two palatal (P1 and P2). Canals were successfully treated with reciprocating files and filled using single-cone filling technique. Precise knowledge of root canal morphology and its variation is important during root canal treatment. CBCT examination is an excellent tool for identifying and managing these complex root canal systems.

Keyword

Anatomy; Cone-beam computed tomography; Maxillary molars

MeSH Terms

Cone-Beam Computed Tomography*
Dental Pulp Cavity*
Diagnosis
Female
Humans
Maxilla
Molar*
Pulpitis

Figure

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  Figure 1 (a) A preoperative radiograph of the right maxillary first molar; (b) Clinical view of access cavity and 7 root canals; (c and d) Cone beam computed tomographic (CBCT) images of right maxillary first molar showing 3 roots and 7 canals; (e - g) Post-filling CBCT images of the right maxillary first molar; (h) One-year follow-up x-ray. MB, mesiobuccal canal; DB, distobuccal canal; P, palatal canal.

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