Evidence map›Paper›PMID 30346803›Full record

ArticleDento maxillo facial radiology2019

Imaging the bifid mandibular canal using high resolution MRI.

Peerapong Wamasing, Chutamas Deepho, Hiroshi Watanabe, Yoshiki Hayashi, Junichiro Sakamoto, Tohru Kurabayashi

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Dento maxillo facial radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Peerapong Wamasing1 Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University , Tokyo , Japan.
Chutamas Deepho1 Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University , Tokyo , Japan.
Hiroshi Watanabe1 Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University , Tokyo , Japan.
Yoshiki Hayashi1 Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University , Tokyo , Japan.
Junichiro Sakamoto1 Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University , Tokyo , Japan.
Tohru Kurabayashi1 Department of Oral and Maxillofacial Radiology, Graduate School, Tokyo Medical and Dental University , Tokyo , Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objective: This study aimed to investigate the incidence of bifid mandibular canals (BMCs) using high-resolution MRI with a three-dimensional volumetric interpolated breath-hold examination sequence (3D-VIBE) through the neurovascular bundle (NVB).

methods: In this retrospective study, we extracted 154 datasets from our archive of patients who underwent MRI examination with a 3D-VIBE sequence for mandible lesions from January 2015 to April 2016. The right and the left mandibles were treated independently with 59 cases excluded due to NVB morphology or artifacts, yielding 249 hemi-mandible cases classified among three subtypes: Type 0 with no BMC, Type one with one NVB and two NVBs on route to it, and Type two with two NVBs. We also investigated the incidence of nutrient canals (NCs) using MRI. Finally, we determined whether each BMC case could also be identified via panoramic radiography (PR) or CT.

results: Of the 249 cases examined, 6.4% were found to have BMC (Types 1 and 2). Subtypes were classified as follows: 233 as Type 0 (93.6%), 11 as Type 1 (4.4%), and 5 as Type 2 (2.0%). The NC was identified on MRI in a majority of cases. No BMCs were identified using PR or CT except for one, which was identified by CT.

conclusion: The incidence rate of BMC per MRI was 6.4% in this study. NCs, including the retromolar canal, had an incidence rate of 58.4-97.6%. Further, BMCs were not verified by PR or CT, indicating that MRI should be used to assess BMCs.

Indexed as

Magnetic Resonance ImagingMandibleAdolescentAdultAgedAged, 80 and overArtifactsChildFemaleHumansMaleMiddle AgedRadiography, PanoramicRetrospective StudiesYoung Adultincidencemagnetic resonance imagingmandiblepanoramicradiographytomographyX-ray computed

Identifiers

PMID30346803
PMCPMC6476361

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.