Study of inferior dental canal and its contents using high-resolution magnetic resonance imaging

Krasny, Andrej; Krasny, Nicolai; Prescher, Andreas

doi:10.1007/s00276-011-0910-y

Cited by 23 publications

(9 citation statements)

References 19 publications

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“…This data suggest that bone remodeling caused by dental absence may lead to decreased blood vessel length, possibly due to a reduced need for blood supply, since the volume of the intraosseous space and the area of the vestibular gingiva in the region are smaller, and also, due to the absence of teeth to be nourished, with such functions being of the genial plexus [7,8].…”

Section: Analysis Of Resultsmentioning

confidence: 98%

“…Being described as an extension of the mandibular canal, the incisive canal begins its course in the mental foramina, traversing the anterior region of the mandible to the central incisive region in a descending way. Radiographically, it is well-defined up to the region of lateral incisors [9], and in the region of central incisors, the canal image becomes diffuse [7]. In addition to anastomoses [10], the presence of another anatomical accident called the genial plexus [11] or upper and lower genial foramen [3], or also lingual foramen which jointly contributes to the crossed neurovascularization at the level of the mandibular midline [3,9].…”

Section: Introductionmentioning

confidence: 99%

“…The incisive canal and the genial plexus contain terminal branches of nerves and blood vessels that feed the teeth of the intermental region, the intraosseous space and the vestibular gingiva of the symphysis region [7,8]. Being described as an extension of the mandibular canal, the incisive canal begins its course in the mental foramina, traversing the anterior region of the mandible to the central incisive region in a descending way.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Size and Location of the Genial Plexus, Related to Age, Sex and Dental Presence, in Implant Surgeries

Alérico¹,

Assis²,

Francischone³

et al. 2017

JBiSE

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Generally being considered as a safe area for surgical approaches, the region between the mental foramina presents important anatomical structures. The objective of this study was to measure the dimensions of the genial plexus and its three-dimensional location in CBCT images, correlating the characteristics of this structure with dental presence, sex and age of patients. A total of 149 cone beam computer tomography (CBCT) scans of dentate (n = 74) and edentulous patients (n = 75) were selected, 59 male and 90 female, aged 18 -86 years. Measurements of width and length of the genial canal were performed, and the shortest distances of the genial plexus were determined in relation to the alveolar bone crest, the buccal cortical bone and the base of the mandible. The results indicated significant differences between the dentate and edentulous groups for the mandibular canal length (p = 0.030), distance from alveolar crest (p < 0.001), and distance from buccal cortical bone (p < 0.001), with significantly higher values in dentate patients. As for gender, the distances between the genial plexus and the alveolar bone crest (p < 0.001) and the buccal cortical bone (p = 0.028) were significantly shorter for females. Regarding age, only the distance between the genial plexus and the alveolar crest showed a significant difference (p < 0.001), and the smallest values were measured in the older patients. It can be concluded that there are vari- ations of the genial plexus in relation to gender, age and between edentulous and dentate patients. Therefore, the anterior region of the mandible, especially the midline should be observed with caution when undergoing surgical procedures, such as removal of bone grafts and installation of dental implants.

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Section: Analysis Of Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of the Size and Location of the Genial Plexus, Related to Age, Sex and Dental Presence, in Implant Surgeries

Alérico¹,

Assis²,

Francischone³

et al. 2017

JBiSE

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“…However, one should keep in mind that the "misjudgment" might actually not necessarily occur when judging the MRI images. In fact, MRI is the most commonly used technique to directly visualize the IAN [22] and to precisely localize the IAN including pathologic processes [9,[44][45][46].…”

Section: Discussionmentioning

confidence: 99%

Is MRI a viable alternative to CT/CBCT to identify the course of the inferior alveolar nerve in relation to the roots of the third molars?

et al. 2020

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Objectives To assess the reliability of judging the spatial relation between the inferior alveolar nerve (IAN) and mandibular third molar (MTM) based on MRI or CT/CBCT images. Methods Altogether, CT/CBCT and MRI images of 87 MTMs were examined twice by 3 examiners with different degrees of experience. The course of the IAN in relation to the MTM, the presence/absence of a direct contact between IAN and MTM, and the presence of accessory IAN were determined. Results The IAN was in > 40% of the cases judged as inferior, while an interradicular position was diagnosed in < 5% of the cases. The overall agreement was good (κ = 0.72) and any disagreement between the imaging modalities was primarily among the adjacent regions, i.e., buccal/lingual/interradicular vs. inferior. CT/CBCT judgements presented a very good agreement for the inter- and intrarater comparison (κ > 0.80), while MRI judgements showed a slightly lower, but good agreement (κ = 0.74). A direct contact between IAN and MTM was diagnosed in about 65%, but in almost 20% a disagreement between the judgements based on MRI and CT/CBCT was present resulting in a moderate overall agreement (κ = 0.60). The agreement between the judgements based on MRI and CT/CBCT appeared independent of the examiner’s experience and accessory IAN were described in 10 cases in MRI compared to 3 cases in CT/CBCT images. Conclusions A good inter- and intrarater agreement has been observed for the assessment of the spatial relation between the IAN and MTM based on MRI images. Further, MRI images might provide advantages in the detection of accessory IAN compared to CT/CBCT. Clinical relevance MRI appears as viable alternative to CT/CBCT for preoperative assessment of the IAN in relation to the MTM.

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“…1). b) lower incisor neurovascular bundle -it is the terminal branch of the endosteal course of the inferior alveolar bundle, which travels in the incisive canal inferiorly to the mandibular anterior teeth and terminates in the midline of the jaw where it is anastomosed with the corresponding bundle of the opposite side 5,[7][8][9][10] (Fig. 2).…”

Section: Introductionmentioning

confidence: 99%

Neurovascular content of the mandibular canal and its clinical relevance: A literature review of the related anatomical and radiological studies

Eliades¹,

Manta²,

Tsirlis³

2014

Balkan J Dent Med

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SUMMARYIn literature, anatomical variations of the inferior alveolar nerve branches (infratemporal, extraosseous and intraosseous) are reported and their importance in clinical practice is discussed too. The spatial vessels’ position in relationship with the nerve in the mandibular canal was explored, which is of clinical significance in impacted third molar and implant surgery. It is believed that the neurovascular content of the main mandibular canal follows any variations of the mandibular canal i.e. bifid mandibular, retromolar and accessory mental canals. Retrospective studies and case reports reported the presence of multiple foramina on the medial surface of the ramus, near the main mandibular foramen. In some cases, one supplementary mandibular foramen was found to be connected with the lower third molar, which is called “temporal crest canal”. Others found an accessory mandibular foramen that led into a second mandibular canal which joined the main mandibular canal (double) anteriorly. The bony canals contained a terminal branch of the anterior trunk of the mandibular nerve or a branch of inferior alveolar nerve before it entered the mandibular foramen.The aim of the study was to describe and classify anatomical structures of the mandibular canal and posterior foramina of the mandible through an extensive review of the corresponding studies via the PubMed, Scopus and Google Scholar databases.

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Study of inferior dental canal and its contents using high-resolution magnetic resonance imaging

Cited by 23 publications

References 19 publications

Evaluation of the Size and Location of the Genial Plexus, Related to Age, Sex and Dental Presence, in Implant Surgeries

Evaluation of the Size and Location of the Genial Plexus, Related to Age, Sex and Dental Presence, in Implant Surgeries

Is MRI a viable alternative to CT/CBCT to identify the course of the inferior alveolar nerve in relation to the roots of the third molars?

Neurovascular content of the mandibular canal and its clinical relevance: A literature review of the related anatomical and radiological studies

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