Micro-CT study of the root canal anatomy of maxillary canines

Abstract

BackgroundThis study aimed to describe the anatomy of maxillary canines from a Western Mexican sub-population using micro-computed tomography (micro-CT).Material and MethodsMaxillary canines (n=32) were scanned at 19.6µm voxel resolution. Number and location of canals, the distance between the cemento-enamel junction and apex, occurrence of accessory and lateral canals, presence of oval canals, number of foraminas as well as two- (area, perimeter, roundness, aspect ratio, major and minor diameters) and three-dimensional (volume, surface area, and SMI) analysis were performed. Data of two-dimensional analyses at 5 different apical levels was statistically compared using Kruskal-Wallis tests (α=0.05).ResultsOverall, 31 specimens had one root with a main canal (Vertucci type I). Mean distance from the apex to the cemento-enamel junction was 16.32±2.27. Apical foraminas were present in 14 specimens (43.75%). No statistical differences were found in the two-dimensional analyses between the foramen and the 1 and 2mm apical levels (P >0.05).ConclusionsMaxillary canines presenting one root canal were present in a high percentage of cases (96%). The prevalence of long oval canals was <12% at the apical third and at least 37% of the sample showed more than one point of exit in the last apical 3mm. Key words:Maxillary canine, micro-computed tomography, root canal anatomy.

The prevalence of oval‐shaped root canals: A morphometric study using cone‐beam computed tomography and image analysis software

“…The shape of the root canals on cross sections has been previously studied, mostly using ex vivo methods including microscopy, microphotography and microcomputed tomography (micro-CT) (4,(12)(13)(14)(15)(16)(17)(18)(19), and in vivo using cone-beam computed tomography (CBCT) (11,20). While ex vivo methods provide vast information about root canals, only CBCT can be utilised clinically to provide in vivo visualisation of root canal morphology throughout the whole canal working length (21).…”

Efficient removal of 2,6-xylidine precipitate using different agitation protocols: An in vitro field emission scanning electron microscopic study

“…[ 7 16 17 ] In contrast to existing literature, our study showed that the middle third of manual irrigation had a higher mean value of percentage of precipitate when compared to no irrigation group, this may be due to varying cross-sectional shapes of the canal system. [ 18 19 20 ]…”

Avaliação Do Conhecimento E Conduta De Professores Em Casos De Avulsão Dentária Antes E Após Atividades De Capacitação

“…The success of endodontic treatment is closely linked to several factors, among which is the anatomy of the root canal. The cleaning, shaping and obturation stages can be compromised if the dentist neglects the possible anatomical variations that can be found in certain dental groups (PLASCENCIA et al, 2017;WU et al, 2000). The anatomy of the mandibular incisors makes it difficult to clean and shape the root canal, since this dental group presents mesiodistal flattening at its root (ASSADIAN et al, 2016;MONSARRAT et al, 2016).…”

“…Knowledge of the anatomy of the internal root and its variations is essential for the success of endodontic treatment. The failure of treatment may be related to several factors, such as unsatisfactory filling, untreated canals, anatomical complexity and lack of knowledge of internal morphology (PLASCENCIA et al, 2017;WU et al, 2000).…”