Artefacts in Cone Beam CT Mimicking an Extrapalatal Canal of Root-Filled Maxillary Molar

Autor: Carla Cristina Camilo, Manoel Brito-Júnior, André Luis Faria-e-Silva, Alex Carvalho Quintino, Adrianne Freire de Paula, Antônio Miranda Cruz-Filho, Manoel Damião Sousa-Neto
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Case Reports in Dentistry, Vol 2013 (2013)
Druh dokumentu: article
ISSN: 2090-6447
2090-6455
DOI: 10.1155/2013/797286
Popis: Despite the advantages of cone-beam computed tomography (CBCT), the images provided by this diagnostic tool can produce artifacts and compromise accurate diagnostic assessment. This paper describes an endodontic treatment of a maxillary molar where CBCT images suggested the presence of a nonexistent third root canal in the palatal root. An endodontic treatment was performed in a first maxillary molar with palatal canals, and the tooth was restored with a cast metal crown. The patient returned four years later presenting with a discomfort in chewing, which was reduced after occlusal adjustment. CBCT was prescribed to verify additional diagnostic information. Axial scans on coronal, middle, and apical palatal root sections showed images similar to a third root canal. However, sagittal scans demonstrated that these images were artifacts caused by root canal fillings. A careful interpretation of CBCT images in root-filled teeth must be done to avoid mistakes in treatment.
Databáze: Directory of Open Access Journals
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