Bifid Mandibular Canal in Japanese

Naitoh, Munetaka; Hiraiwa, Yuichiro; Aimiya, Hidetoshi; Gotoh, Masakazu; Ariji, Yoshiko; Izumi, Mitsuru; Kurita, K.; Ariji, Eiichiro

doi:10.1097/id.0b013e3180312323

Cited by 52 publications

(49 citation statements)

References 13 publications

(12 reference statements)

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“…Owing to the two-dimensional nature of PANs, the upper airway, soft palate and uvula, and opposing side and submandibular fossae may produce ghost shadows and interfere with the visualization of neurovascular canals. The present study found a visualization rate of BMCs using PANs as compared with that using CBCT of 37.8%, which was similar to the rate previously reported by Naitoh et al 31 Neves et al, 34 by contrast, reported a 76% visualization rate, but, this may be owing to the low number of BMCs that they detected on CBCT. Bogdán et al 35 found 19.6% of BMCs in dry mandibles, but only 0.2% of total cases were visible on PANs.…”

Section: Discussionsupporting

confidence: 90%

“…To be of assistance in identifying suspected BMCs, a distinctive radiographic feature has The present study involves a large sample and found that the rate of visualization of BMCs on PANs as compared with CBCT was similar to the results reported by Naitoh et al 31 Kuribayashi et al 7 explained that buccolingual canals can be easily detected on CBCT but might be missed on PANs. However, in the present study, the proportion of buccolingual canals was very low, suggesting that features other than the canal type must also play a role.…”

Section: Discussionsupporting

confidence: 87%

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Descriptive study of the bifid mandibular canals and retromolar foramina: cone beam CTvspanoramic radiography

Muinelo-Lorenzo

Suárez‐Quintanilla²,

Fernández-Alonso³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: To examine the presence and morphologic characteristics of bifid mandibular canals (BMCs) and retromolar foramens (RFs) using cone beam CT (CBCT) and to determine their visualization on panoramic radiographs (PANs). Methods: A sample of 225 CBCT examinations was analysed for the presence of BMCs, as well as length, height, diameter and angle. The diameter of the RF was also determined. Subsequently, corresponding PANs were analysed to determine whether the BMCs and RFs were visible or not. Results: The BMCs were observed on CBCT in 83 out of the 225 patients (36.8%). With respect to gender, statistically significant differences were found in the number of BMCs. There were also significant differences in anatomical characteristics of the types of BMCs. Only 37.8% of the BMCs and 32.5% of the RFs identified on CBCT were also visible on PANs. The diameter had a significant effect on the capability of PANs to visualize BMCs and RFs (B 5 0.791, p 5 0.035; B 5 1.900, p 5 0.017, respectively). Conclusions: PANs are unable to sufficiently identify BMCs and RFs. The diameter of these anatomical landmarks represents a relevant factor for visualization on PANs. Pre-operative images using only PANs may lead to underestimation of the presence of BMCs and to surgical complications and anaesthetic failures, which could have been avoided. For true determination of BMCs, a CBCT device should be considered better than a PAN.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 87%

Descriptive study of the bifid mandibular canals and retromolar foramina: cone beam CTvspanoramic radiography

Muinelo-Lorenzo

Suárez‐Quintanilla²,

Fernández-Alonso³

et al. 2014

Dentomaxillofacial Radiology

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“…Recently, the course of the mandibular canal, such as the bifurcation and anterior loop, multiple mental foramina, mandibular incisive canal, and lingual foramen have been assessed using helical computed tomography (CT) and cone-beam computed tomography (CBCT) images [1][2][3][4][5][6][7][8] . Jacobs et al (2002) 7) reported that the lingual foramen could be detected in 82% of cases using spiral CT scan images for the preoperative planning of implant placement.…”

Section: Introductionmentioning

confidence: 99%

Observation of buccal foramen in mandibular body using cone-beam computed tomography

Naitoh

Nakahara

Aimiya

et al. 2009

Okajimas Folia Anat. Jpn.

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Summary:The location and course of the mandibular canal and multiple mental foramina are important in dental implant insertion and any surgical procedures involving the mandible. The purpose of the present investigation was to assess buccal foramen presence in the mandible using cone-beam computed tomography (CBCT) images.A total of 84 patients were enrolled in this investigation. Buccal foramen presence in the mandibular body, which was defined as a buccal bone defect of the bony canal penetrating through the buccal cortical bone, was assessed using two-and three-dimensional CBCT images.Buccal foramen presence, located from the median to molar regions, was observed in 44% of patients. There was no significant difference among gender and age. Also, a buccal foramen showing continuity with the mandibular canal was observed in 7.1% of patients.Buccal foramen presence in the mandibular body could be assessed in detail using CBCT images.

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“…There are various classifications for bifid mandibular canals proposed by different authors such as Langlais et al, [5] Nortjé et al, [8] and Naitoh et al [14] In the present study, Langlais et al, classification was utilized to designate the type of bifid mandibular canal since it was the most cited classification system in the literature.…”

Section: Discussionmentioning

confidence: 95%

Prevalence of bifid mandibular canal and its relationship with third molar in Indian population: A retrospective analysis

Singh¹,

Vineeth²,

Prasad³

et al. 2018

JCRI

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Purpose:The location, configuration, and variations of mandibular canal such as bifid/ trifid/double mandibular canals play a significant role in performing surgical procedures in the mandible. The study was aimed to assess the prevalence of bifid mandibular canals using cone beam computed tomography (CBCT) images. Materials and Methods: A retrospective study on CBCT images of full skull or mandible of patients, taken during the period from May 2014 to April 2016, was carried out. Images with any gross pathology involving mandible were excluded. CBCTs were examined by a single examiner for presence, type of bifid mandibular canal, and the relationship of bifid mandibular canal with the third molar. Results: A total of 408 CBCTs were examined, out of which 23 exhibited bifid mandibular canal with the prevalence of 5.63%. Type 2BC was the most common type of bifid mandibular canal. All the CBCTs showing Type 1U and 1B bifid mandibular canals, 33.3% of Type 2UC and 25% of Type 2BC bifid mandibular canals exhibited Class B relationship with the third molar. Conclusion: Suspicion of bifid mandibular canal on a screening orthopantomogram should be confirmed by CBCT. Assessment of the type of bifid mandibular canal will help in treatment planning of mandibular surgical procedures.

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Bifid Mandibular Canal in Japanese

Cited by 52 publications

References 13 publications

Descriptive study of the bifid mandibular canals and retromolar foramina: cone beam CTvspanoramic radiography

Descriptive study of the bifid mandibular canals and retromolar foramina: cone beam CTvspanoramic radiography

Observation of buccal foramen in mandibular body using cone-beam computed tomography

Prevalence of bifid mandibular canal and its relationship with third molar in Indian population: A retrospective analysis

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