Morphological analysis of mandibular foramen through anatomical planes: implications for inferior alveolar nerve block

The position of mandibular foramen and its correspondence with the mandibular nerve are the key positions of the personified research. The ideas of different anatomic schools about the positions of mandibular foramen are based on their own research of native, clinical, radiological materials and on the averaged common tendencies.

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Variants of inferior alveolar nerve block: A review

CODS Journal of Dentistry ◽

10.5005/cods-6-1-35 ◽

2014 ◽

Vol 6 (1) ◽

pp. 35-39 ◽

Cited By ~ 1

Author(s):

Rahul Seth ◽

M. Anuradha ◽

D.S. Yashavanth Kumar ◽

Harsha V. Babji

Keyword(s):

Success Rate ◽

Nerve Block ◽

Inferior Alveolar Nerve ◽

Dental Practice ◽

Inferior Alveolar Nerve Block ◽

Anesthetize Patient ◽

Mandibular Foramen ◽

Floor Of The Mouth ◽

Anaesthetic Solution ◽

Mandibular Teeth

Abstract The inferior alveolar nerve block is the most common method for obtaining mandibular anaesthesia in dental practice, but it is estimated to have a success rate of only 80 to 85%. Traditional anaesthesia of the mandibular nerve and its branches consists of deposition of anaesthetic solution in the region of the mandibular foramen. This commonly used technique eliminates all somatosensory perception of the mandible, mandibular teeth, floor of the mouth, ipsilateral tongue, and all but the lateral (buccal) gingivae. In the case of difficulty-to-anesthetize patient, the inferior alveolar nerve can be particularly challenging. In those patients, other approaches may be necessary to achieve profound anaesthesia. This article summarizes the different approaches that may be utilized in such cases. How to cite this article Anuradha M, Yashavanth Kumar DS, Harsha VB, Rahul S. Variants of inferior alveolar nerve block. CODS J Dent 2014;6;35-39

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Morphometric study on mandibular foramen and incidence of accessory mandibular foramen in mandibles of south Indian population and its clinical implications in inferior alveolar nerve block

Anatomy & Cell Biology ◽

10.5115/acb.2016.49.4.241 ◽

2016 ◽

Vol 49 (4) ◽

pp. 241 ◽

Cited By ~ 10

Author(s):

R. Shalini ◽

C. RaviVarman ◽

R. Manoranjitham ◽

M. Veeramuthu

Keyword(s):

Nerve Block ◽

Indian Population ◽

Inferior Alveolar Nerve ◽

Morphometric Study ◽

Clinical Implications ◽

South Indian Population ◽

Inferior Alveolar Nerve Block ◽

Mandibular Foramen ◽

South Indian

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Topographical Landmarks for Identification of Inferior Alveolar Nerve and its Surgical Implications - a Cadaveric Study

10.21203/rs.3.rs-541391/v1 ◽

2021 ◽

Author(s):

Ariyanachi K ◽

Sushma P

Keyword(s):

Nerve Block ◽

Inferior Alveolar Nerve ◽

Inferior Alveolar Nerve Block ◽

Mandibular Ramus ◽

Nerve Blocks ◽

Mandibular Foramen ◽

Bony Landmarks ◽

Posterior Division ◽

Mandibular Notch ◽

Formalin Fixed

Abstract Background: Inferior alveolar nerve, which arises from the posterior division of the mandibular nerve, contains both sensory and motor fibres. The intraosseous course of the nerve is variable. Mandibular foramen is situated on the medial surface of the mandibular ramus. It is an important anatomical landmark for procedures like sagittal split osteotomies and inferior alveolar nerve block.Methods: The precise location of mandibular foramen was studied by the dissection of formalin fixed cadavers available for undergraduate dissection for a period of two years fron 2014-2016. Results: The mandibular foramen was 21±3.33 mm superior to the gonion at an angle of 980±50 with the base of the mandible. The mandibular foramen was 20.13±3.1 mm inferior to the lowest point of the mandibular notch. Accessory mandibular foramen was observed in 9.37% of the samples dissected.Conclusion: The present study explains the position of mandibular foramen in relation to prominent bony landmarks and the knowledge about the mandibular foramen, helps dental surgeons during inferior alveolar nerve blocks and split osteotomies.Practical implications: Failure rate of the inferior alveolar nerve block has been reported to be approximately 20-25%. A thorough anatomical knowledge of the mandibular ramus is essential for inferior alveolar nerve blocks and sagittal split osteotomies, since they are technically difficult procedures and as they are also associated with a higher incidence of complications.

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Panoramic Radiographic Relationship of the Mandibular Foramen to the Anterior Border of the Ramus and Occlusal Plane as an Aid in Inferior Alveolar Nerve Block

Anesthesia Progress ◽

10.2344/anpr-65-04-05 ◽

2019 ◽

Vol 66 (1) ◽

pp. 20-23

Author(s):

Esshagh Lasemi ◽

Mohammad Hosein Kalantar Motamedi ◽

Ahmad Reza Talaeipour ◽

Shahrouz Shafaeifard ◽

Mohamad Javad Kharrazi Fard ◽

...

Keyword(s):

Nerve Block ◽

Inferior Alveolar Nerve ◽

Case Series ◽

Occlusal Plane ◽

Radiology Department ◽

Inferior Alveolar Nerve Block ◽

Anterior Border ◽

Mandibular Foramen ◽

Panoramic Radiographs ◽

Case Series Study

The location of the mandibular foramen (MF) on digital panoramic radiographs can be an important guide for clinicians when administering the inferior alveolar nerve block (IANB) for dental anesthesia of the mandible. This study, aimed to assess the location of the MF relative to the anterior border (AB) of the ramus and the occlusal plane (OP) from digital panoramic radiographs. An observational case series study was conducted on digital panoramic radiographs from the oral and maxillofacial radiology department archives of patients at least 18 years of age with a 1:1 scale (100%). The samples had to have at least 2 lower molar teeth on both sides without any blurring, previous fracture of the ramus or other artifacts. The distance of the MF to the OP and the AB of the ramus was measured using a caliper. The role of age and gender were also analyzed statistically using the 2-way analysis of variance test. One hundred ninety-four digital panoramic radiographs were included in the analysis. The findings showed that the vertical distance of the MF to the OP was a maximum of 14.52 mm and a minimum of −3.0 mm (mean 4.32 ± 2.34 mm). The distance of the MF to the AB of the ramus was a maximum of 25.52 and a minimum 9.68 mm (mean 16.48 ± 3.28 mm). Based on these findings, the IANB target site for injection should be approximately 5 mm above the OP and approximately 16.5 mm beyond the AB of the ramus to achieve successful anesthesia of the mandible via standard IANB in an Iranian population.

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