Accessory mental foramina: prevalence, position and diameter assessed by cone‐beam computed tomography and digital panoramic radiographs

Imada, Thaís Sumie Nozu; Fernandes, Luciana Maria Paes da Silva Ramos; Centurion, Bruna Stuchi; Oliveira‐Santos, Christiano; Honório, Heitor Marques; Rubira-Bullen, Izabel Regina Fischer

doi:10.1111/clr.12066

Cited by 61 publications

(68 citation statements)

References 33 publications

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“…Three AMF on the left side and three on the right side, which indicates 3% on the right side and 3% on the left side with 6% of total incidence. Imada et al, 17 also studied in 100 mandible and found six accessory mental foramen, three on right and left side. The findings of Shukla RK et al 18 in 96 mandibles a single accessory mental foramen was identified in 4.17% of the sample 7 reported 6.62% of the mandibles possessed accessory mental foramina.…”

Section: Discussionmentioning

confidence: 95%

Morphometric analysis of mental foramen in human dry mandibles of nepalese population

Kadel

Sedhain²,

Dangol

2016

Asian J Med Sci

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Background: Mental foramina are located bilaterally in the antero-lateral aspect of the body of mandible. It transmits mental nerve, and vessels. The location, shape, size, direction and number of mental foramen in human mandibles are subject of variation. The knowledge of it is applicable in endodontics, surgery and anesthesia. Aims and Objective: To establish the location, shape, size, direction and incidence of mental foramen (MF) in dry human mandibles of Nepalese population. Materials and Methods: One hundred dry human mandibles of unknown age and sex were selected randomly. Shape, size, position of MF with respect to tooth and other anatomical landmark were determined. Paired t-test was used for specific statistical analysis. Results: In most cases (61%), the MF was oval in shape & situated below the apex of second premolar (58% on right side and 69% on left side). Various parameters investigated were, the horizontal distance between (1) base of mandible and MF was 12.24 mm on right and 12.26 mm on the left, (2) alveolar margin and MF was 13.95 mm on right and13.75 mm on left (3) symphysis menti of mandible and MF was 26.71 mm on right and 26.49 mm on left, (4) posterior border of mandible and MF was 65.34 mm on right and 65.68mm on left. Conclusion: By the knowledge of position, shape, size, direction and distance of the mental foramen from various landmarks and the presence of the accessory foramen may be of much use to dental surgeons.

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Section: Discussionmentioning

confidence: 95%

Morphometric analysis of mental foramen in human dry mandibles of nepalese population

Kadel

Sedhain²,

Dangol

2016

Asian J Med Sci

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“…Previous studies with panoramic radiographs reported incidences of less than 1% 6,9 . Studies with CBCT images have shown a much higher incidence, with prevalence ranging from 15.6% to 65% 2,[13][14][15] , thus reiterating that conventional radiographs are not suitable to detect anatomical variations of the mandibular canal.…”

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confidence: 88%

“…Topographically, it is located closer to the inner bone wall up to the mesial aspect of the first molar, moving across to the outer bone wall until it reaches the mental foramen 1 . The radiographic appearance of the mandibular canal is characterized by a radiolucent strip between two radiopaque lines 2 generally as a single structure, presenting different positions inside the body of the mandible in both the upperlower and the medial-lateral directions 3 with occasional duplicate pathways and bifurcations 295 295 295 295 295 nerve in the mandibular canal is of great importance to dentists, especially for those planning orthognathic surgery, mandibular reconstruction, extraction of third molars or installation of osseointegrated implants [6][7] . It is therefore paramount to investigate the frequency and classification of bifid mandibular canals using CBCT to aid surgical planning at posterior regions of the mandible, minimizing the risk of accidents and operative complications.…”

Section: Introductionmentioning

confidence: 99%

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Incidence and classification of bifid mandibular canals using cone beam computed tomography

Freitas¹,

Silva²,

Morais³

et al. 2015

Braz. J. Oral Sci.

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Aim: To determine the prevalence and classification of bifid mandibular canals using cone beam computed tomography (CBCT). Methods: The sample comprised 300 CBCT scans obtained from the Radiology and Imaging Department database at São Leopoldo Mandic Dental School, Campinas, SP, Brazil. All images were performed on Classic I-Cat® CBCT scanner, with standardized voxel at 0.25 mm and 13 cm FOV (field of view). From an axial slice (0.25 mm) a guiding plane was drawn along the alveolar ridge in order to obtain a cross-section. Results: Among 300 patients, 188 (62.7%) were female and 112 (37.3%) were male, aged between 13 to 87 years. Changes in the mandibular canal were observed in 90 patients, 30.0% of the sample, 51 women (56.7%) and 39 men (43.3%). Regarding affected sides, 32.2% were on the right and 24.5% on the left, with 43.3% bilateral cases. Conclusions: According to the results obtained in this study, a prevalence of 30% of bifid mandibular canals was found, with the most prevalent types classified as B (mesial direction) and bilateral.

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“…It provides high resolution, cross-sectional view and diagnostic reliability at lower costs and radiation doses [1,12,18]. It allows detailed multiplanar evaluation of maxillofacial region to be conducted for further analysis of the anatomical structures which could not have been detected by conventional imaging modalities [4,6,10].…”

Section: Introductionmentioning

confidence: 99%

An anatomical variant: evaluation of accessory canals of the canalis sinuosus using cone beam computed tomography

et al. 2018

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Accessory mental foramina: prevalence, position and diameter assessed by cone‐beam computed tomography and digital panoramic radiographs

Abstract: The results of this study suggest that CBCT is an effective tool for presurgical tridimensional assessment of the neurovascular structures, such as MF and its variations; On the other hand, PAN examinations were not able to show the AMF cases assessed on CBCT.

Cited by 61 publications

References 33 publications

Morphometric analysis of mental foramen in human dry mandibles of nepalese population

Morphometric analysis of mental foramen in human dry mandibles of nepalese population

Incidence and classification of bifid mandibular canals using cone beam computed tomography

An anatomical variant: evaluation of accessory canals of the canalis sinuosus using cone beam computed tomography

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