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BMC Medical Imaging

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Open Access 01-12-2016 | Research article

Prevalence and location of the secondary mesiobuccal canal in 1,100 maxillary molars using cone beam computed tomography

Authors: Pablo Betancourt, Pablo Navarro, Gonzalo Muñoz, Ramón Fuentes

Published in: BMC Medical Imaging | Issue 1/2016

Abstract

Background

Several articles have used cone beam computed tomography (CBCT) to study the morphology of the maxillary molars and to ascertain its ability to visualize the second mesiobuccal canal (MB2); however, its geometric location has not been examined in depth. The aim of this study was to describe in vivo the prevalence and location of the MB2 in the mesiobuccal root of the first maxillary molar (1MM) and the second maxillary molar (2MM) through CBCT imaging.

Methods

Five hundred fifty CBCT images of the 1MM and 550 of the 2MM were analyzed. To detect the MB2 canal, the observation and measurements were done 1 mm apically to the pulpal floor to standardize the methodology. The geometric location of the central point of the MB2 canal (PMB2) was measured in relation to the central point of the mesiobuccal canal (PMB1) and in relation to the line projected between the PMB1 and the central point of the palatal canals (PP). The data were analyzed using descriptive statistics, with a value of P < 0.05 being statistically significant.

Results

In the 1MM, the prevalence of the MB2 canal was 69.82% and was more frequent in women (p = 0.005). The distance between PMB1 and PP was 7.64 ± 1.04 mm. The average distance between PMB1 and PMB2 was 2.68 ± 0.49 mm, and for PMB2 and the line projected between the PMB1 and PP canals was 1.25 ± 0.34 mm. In the 2MM, the MB2 canal was identified in 46.91% and was more frequent in men (p = 0.000). The distance between PMB1 and PP was 7.02 ± 1.30. The average distance between PMB1 and PMB2 was 2.41 ± 0.64 mm, and for the PMB2 and the line projected between the PMB1 and PP canals was 0.98 ± 0.33 mm.

Conclusions

The MB2 canal was found in a high percentage of the sample. These results indicate that CBCT is an effective, high-precision diagnostic tool not only for detecting but also locating in vivo the MB2 canal in the mesiobuccal root of upper molars.

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Title: Prevalence and location of the secondary mesiobuccal canal in 1,100 maxillary molars using cone beam computed tomography
Authors: Pablo Betancourt
Pablo Navarro
Gonzalo Muñoz
Ramón Fuentes
Publication date: 01-12-2016
Publisher: BioMed Central
Published in: BMC Medical Imaging / Issue 1/2016
Electronic ISSN: 1471-2342
DOI: https://doi.org/10.1186/s12880-016-0168-2

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Prevalence and location of the secondary mesiobuccal canal in 1,100 maxillary molars using cone beam computed tomography

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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