scholarly journals Comparative Anatomy of Mandibular Neurovascular Canals in Modern Human and Great Apes: A Pilot Study with Cone Beam Computed to Mography

2018 ◽  
Vol 1 (2) ◽  
pp. 1-9
Author(s):  
Livia Corpas ◽  
Yan Huang ◽  
Bassant Mowafey ◽  
Patrick Semal ◽  
Xin Liang ◽  
...  
Keyword(s):  
Comparative Anatomy ◽  
Great Apes ◽  
Anatomical Variations ◽  
Mandibular Canal ◽  
Mental Foramen ◽  
Modern Human ◽  
Cone Beam ◽  
Linear Measurements ◽  
Incisive Canal ◽  
Bone Width

The aim of the present study was to compare mandibular neurovascular canal anatomy in human and great apes by using cone beam computed tomography (CBCT). The anatomical variability of mandibular neurovascular canals (mandibular, incisive and lingual canals) of 129 modern humans and great apes (Homo, Pan and Gorilla) were analyzed by linear measurements on CBCT images. The Kruskal-Wallis non-parametric test and Dunn’s all pairs for joint ranks were applied to compare the variability of mandibular canals among these groups. Human, Chimpanzee and Gorilla groups showed significant differences in the dimensions of the mandibular canal, mental foramen, incisive canal, lingual canal and anterior mandibular bone width. Bifid mandibular canals and anterior loops were the anatomical variations most frequently observed in the Gorilla. Humans had a larger mental foramen and a distinctive incisive canal. The latter could not be identified in the Gorilla group. The variability in the anatomy within mandibles of human and non-human primates, shows different forms in the neurovascular structures. In comparison to the mandible of great apes, the incisive canal is suggested to be a feature unique to the human mandible.

scholarly journals Relationship between mandibular incisive canal and mental foramen using cone-beam computed tomography in a selected Brazilian Amazon population

RSBO ◽  
2018 ◽  
Vol 15 (1) ◽  
pp. 12-09
Author(s):  
Cláudia Gemaque Marinho ◽  
Pedro Luiz de Carvalho ◽  
Edson Marcos Leal Soares Ramos ◽  
Fabricio Mesquita Tuji ◽  
Nicolau Conte Neto
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Brazilian Amazon ◽  
Mandibular Canal ◽  
Mental Foramen ◽  
Cone Beam ◽  
Median Line ◽  
Anatomic Structure ◽  
Incisive Canal ◽  
The Mean

The mandibular canal is an anatomic structure that extends bilaterally from the mandibular foramen to the mental foramen. Objective: To identify the presence, extension, and length of the mandibular incisive canal with a cone-beam computed tomography, and to determine correlations with the positioning of the mental foramen and mandibular canal in a selected Brazilian Amazon population. Material and methods: The measurements of the incisive canal that ends at the mandible’s lower buccal and lingual border, at its initial and terminal portions, were obtained from 95 odontological examinations using cone-beam computed tomography. These measurements were compared with the measurements of the distance between the mandibular canal ending at the same cortices in 2 distinct regions at the mental foramen region. Pearson’s correlation test was used to establish a relationship between these measurements. Results: The mandibular incisive canal’s bilateral identification mean age was of 44.29 ± 11.04 y and the mean length was 10.38 ± 4.01 mm. Moderate correlations were found between the measurements of the mandibular incisive canal, mental foramen, and mandibular canal. Conclusion: The mandibular incisive canal can reach the region of the median line, and it did not present differences between the genders or for the length and distance of the mandibular incisive canal to the cortices ending at the mandible base.

Location of the Mandibular Incisive Canal Related to the Placement of Dental Implants: A Case Report

2019 ◽  
Vol 45 (6) ◽  
pp. 474-482 ◽  
Author(s):  
Dong-Jin Choi ◽  
Kee-Deog Kim ◽  
Bock-Young Jung
Keyword(s):  
Case Report ◽  
Panoramic Radiography ◽  
Anatomical Variations ◽  
Mental Foramen ◽  
Cone Beam ◽  
Incisive Canal ◽  
Anterior Loop ◽  
Cone Beam Computerized Tomography ◽  
Mental Canal

Cone-beam computerized tomography (CBCT) can show an uncommon mandibular incisive canal that cannot be detected by panoramic radiography, which is used preoperatively to form the initial plan of the size and length of an implant fixture for surgical placement in the mandibular interforaminal area. Determination of the position and anatomical configuration of the mandibular incisive canal is challenging. The purpose of this case report is to discuss anatomical variations in the mandibular incisive canal and the mental canal by reviewing previous studies. Furthermore, we propose that the anterior loop length of the mental canal near the mental foramen, as well as the diameter of the mandibular incisive canal, should be verified by CBCT prior to performing implant surgery in the anterior mandibular area to prevent possible nerve damage.

scholarly journals Relationship between mandibular incisive canal and mental foramen using cone-beam computed tomography in a selected Brazilian Amazon population

RSBO ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
Cláudia Gemaque Marinho ◽  
Pedro Luiz de Carvalho ◽  
Edson Marcos Leal Soares Ramos ◽  
Fabricio Mesquita Tuji ◽  
Nicolau Conte Neto
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Brazilian Amazon ◽  
Mandibular Canal ◽  
Mental Foramen ◽  
Cone Beam ◽  
Median Line ◽  
Anatomic Structure ◽  
Incisive Canal ◽  
The Mean

Introduction: The mandibular canal is an anatomic structure that extends bilaterally from the mandibular foramen to the mental foramen. Objective: To identify the presence, extension, and length of the mandibular incisive canal with a cone-beam computed tomography, and to determine correlations with the positioning of the mental foramen and mandibular canal in a selected BrazilianAmazon population. Material and methods: The measurements of the incisive canal that ends at the mandible’s lower buccal and lingual border, at its initial and terminal portions, were obtained from 95 odontological examinations using cone-beam computed tomography. These measurements were compared with the measurements of the distance between the mandibular canal ending at the same cortices in 2 distinct regions at the mental foramen region. Pearson’s correlation test was used to establish a relationship between these measurements. Results: The mandibular incisive canal’s bilateral identification mean age was of 44.29 ± 11.04 y and the mean length was 10.38 ± 4.01 mm.Moderate correlations were found between the measurements of the mandibular incisive canal, mental foramen, and mandibular canal. Conclusion: The mandibular incisive canal can reach the region of the median line, and it did not present differences between the genders or for the length and distance of the mandibular incisive canal to the cortices ending at the mandible base.

scholarly journals The evaluation of visibility of mandibular anatomic landmarks using panoramic radiography

2019 ◽  
Vol 9 (2) ◽  
pp. 69-77
Author(s):  
Gözde Serindere ◽  
Ceren Aktuna Belgin
Keyword(s):  
Panoramic Radiography ◽  
Age Groups ◽  
Mandibular Canal ◽  
Mental Foramen ◽  
Anatomical Landmarks ◽  
Anatomic Landmarks ◽  
Dental Surgery ◽  
Incisive Canal ◽  
Mandibular Foramen ◽  
Panoramic Radiographs

Objective: Mandibular canal, mandibular foramen, mental foramen and insisiv canal are so important anatomical structures for dental surgery. The aim of this study was to evaluate the visibility of these important landmarks in different age groups and to compare the visibility in dentulous group with edentulous group on panoramic radiographs. Methods: The panoramic radiographs of 500 patients (237 males; 263 females; mean age; 39.2) were evaluated for this study. The visibility of anatomical landmarks were analyzed in the radiographs and scores were noted. The data obtained in this study were analyzed by SPSS 21 package program. The value of p<0.05 was considered statistically significant.  Results: Out of 500 radiographs, mandibular canal, mandibular foramen, mental foramen and incisive canal was visible in 89.8%, 88%, 80.6% and 12.8%, respectively. 23 (4.6%) patients had total tooth loss. The visibility of the anatomical landmarks was observed in groups below 25 years old. Conclusion: Panoramic radiographs provide useful information on the visibility of anatomical landmarks. However, the use of 3D imaging methods before surgical procedures will give more accurate results.   How to cite this article: Serindere G, Aktuna Belgin C. The evaluation of visibility of mandibular anatomic landmarks using panoramic radiography. Int Dent Res 2019;9(2):69-77.   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Evaluation of Mental Foramen Location – A Review Article

2020 ◽  
Vol 3 (7) ◽  
pp. 379-385
Author(s):  
Hussein Haleem Jasim
Keyword(s):  
Mandibular Canal ◽  
Mental Foramen ◽  
Review Article ◽  
Anatomical Structure ◽  
Cone Beam ◽  
Dental Surgery ◽  
Lower Lip ◽  
Tomographic Images ◽  
Computed Tomographic ◽  
Common Area

Abstract: One of the most vital anatomical structure within the mandible is the mental foramen. The significance of this structure come since it is the anatomical opening of mandibular canal on the mandible bilaterally. The neuro-vascular complex leaving from the foramen has a critical and important role and giving supply to the skin and muscles of the chin, lower lip, the associated gingiva and mucosa following to the lower premolars. Subsequently, the location knowledge of the mental foramen considers an awfully significant for dental specialists to dodge harming this imperative structure via the dental working on this region, as in dental anaesthesia, dental surgery, dental anaesthesia and root canal treatment. The aim of study: The point of the think about: To assess the site of the mental foramen in relative to the mandibular premolars, depended on the panoramic and CBCT and O.P.G images. Materials and Methods: The current study involved the previous articles published from 1997 till 2019, with respect to the site of mental foramen in elderly and adult patients, in any case of the gender. All these studies were used on either the panoramic and cone-beam computed tomographic images for visualizing the site of the mental foramen. Results: Regarding the outcomes of the previous studies included in this review, the statistics appeared that the first common area of mental foramen was beneath the apices of lower second premolars in the percentage of 49.99%, the other second common area of mental foramen was between the apices of the lower first and second premolars in the percentage of 42.30%. Conclusion: The mental foramen was mostly found beneath the apices of lower first and second premolars and then between the apices of the lower first and second premolars.

scholarly journals Custom Focal Trough in Cone-Beam Computed Tomography Reformatted Panoramic Versus Digital Panoramic for Mental Foramen Position to Aid Implant Planning

2020 ◽  
Vol 10 ◽  
pp. 34
Author(s):  
Khaled Beshtawi ◽  
Emad Qirresh ◽  
Mohamed Parker ◽  
Shoayeb Shaik
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Mental Foramen ◽  
Reference Points ◽  
Cone Beam ◽  
Vertical Position ◽  
Linear Measurements ◽  
Mean Values ◽  
The Mean ◽  
High Level

Objectives: To compare the linear measurements from digital panoramic (DP) radiographs and cone-beam computed tomography (CBCT) volumes for the localization of the mental foramen (MF). Material and Methods: Thirty-one patients with panoramic and CBCT radiographs depicted on the same machine were analyzed. The vertical and horizontal positions of the MF were compared by the differences in distances measured from reference points to the boundaries (tangents) of the MF in digital panoramic (DP) and CBCT reformatted panoramic (CRP) views. The vertical position of MF was also analyzed on CBCT oblique coronal views (CORO) and compared with its corresponding distances on DP and CRP views. Results: Statistically significant differences (P < 0.05) were found in all compared measurements between CRP and DP views. In addition, the vertical distance (Y1) compared between DP, CRP, and CORO views also showed a statistically significant measurement discrepancy in the mean distance (P < 0.000) with the highest mean difference of 1.59 mm (P < 0.05) was attained from Y1 (DP-CORO). Inter- and intra-examiner analysis indicated a high level of agreement for all measurements. Conclusion: The mean values of discrepancies in measurements between DP and CRP views for horizontal and vertical linear measurements were clinically tolerable. Nevertheless, significant differences in the vertical MF position were detected between the panoramic views (DP, CRP) and the coronal views (CORO). This implies that the use of coronal view measurements during implant planning might reduce the risk of neurovascular injuries.

scholarly journals ASSESSMENT OF MEAN DISTANCE OF MANDIBULAR INCISIVE CANAL USING CONE BEAM COMPUTERIZED TOMOGRAPHY; A CROSS-SECTIONAL STUDY

2021 ◽  
Vol 71 (5) ◽  
pp. 1801-05
Author(s):  
Mubashir Sharif ◽  
Nighat Haroon ◽  
Muhammad Anwaar Alam ◽  
Adil Umar Durrani ◽  
Talib Hussain ◽  
...  
Keyword(s):  
Computerized Tomography ◽  
Mental Foramen ◽  
Cross Sectional Study ◽  
Cone Beam ◽  
Sectional Study ◽  
Cross Sectional ◽  
Incisive Canal ◽  
Number Of Patients ◽  
Cone Beam Computerized Tomography ◽  
The Mean

Objective: To determine the mean distance of mandibular incisive canal from the mental foramen in patients reporting to a tertiary care centre using Cone Beam Computerized Tomography for placement of dental implants in the anterior/interforaminal region. Study Design: Cross-sectional study. Place and Duration of Study: Department of Prosthodontics, Foundation University College of Dentistry Rawalpindi, Jun to Nov 2019. Methodology: A total of 70 patients participated between the age of 20-45 years. Cone Beam Computerized Tomography (the investigation was carried out and measurements of the mandibular incisive canal from mental foramen were recorded with the help of measuring tools in the software and noted down on the proforma. Data were analyzed using SPSS-20. Results: The number of patients selected for this study was 70. Out of these 70 patients, 33 (47.1%) were males and 37 (52.9%) were females. The mean age of patients in this study was 36.31 ± 6.38 years. The mean distance/extension of the mandibular incisive canal from left mental foramen and right mental foramen in all patients was recorded to be 14.49 ± 6.31 mm and 14.97 ± 7.10 mm respectively. Conclusion: Within the limitations of this study, it is concluded that a maximum distance of 22mm of the incisive canal from the mental foramen was observed using cone-beam computerized tomography.

scholarly journals Mandibular Canal Course and the Position of the Mental Foramen by Panoramic X-Ray in Chilean Individuals

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Gloria Cartes ◽  
Ivonne Garay ◽  
Naira Figueiredo Deana ◽  
Pablo Navarro ◽  
Nilton Alves
Keyword(s):  
Third Molar ◽  
Mandibular Canal ◽  
Mental Foramen ◽  
Age Group ◽  
Older Individuals ◽  
Linear Measurements ◽  
X Ray ◽  
Different Populations ◽  
Morphology And Morphometry ◽  
Mandibular Teeth

The object of this study was to analyse the morphology and morphometry of the mandibular canal (MC) course and the mental foramen (MF) position in relation to the inferior teeth by panoramic X-ray (PAN). Vertical linear measurements were taken of each hemimandible to obtain the length of the distances analysed. We studied the MF position in relation to inferior premolar roots and the relation between the MC and mandibular teeth roots (MCR). The MF was usually located between the apices of the first and second premolars in younger individuals and immediately below the apex of the inferior second premolar in older individuals. The MC evinced proximity to the third molar, and this relation was not affected by sex or age group. The distances analysed in this study presented a marked difference between gender, with larger values in males than in females. The variations which may occur between individuals and different populations make it essential for dentists and surgeons to plan carefully before procedures involving this region.

scholarly journals Bifid canals: identification of three clinical cases using cone-beam computed tomography images

2018 ◽  
Vol 66 (3) ◽  
pp. 263-266
Author(s):  
Paulo de Camargo MORAES ◽  
Daniela Prata TACCHELLI ◽  
Rubens Gonçalves TEIXEIRA ◽  
Luciana Butini OLIVEIRA ◽  
José Luiz Cintra JUNQUEIRA
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Third Molar ◽  
Anatomical Variations ◽  
Mandibular Canal ◽  
Cone Beam ◽  
Bone Lesions ◽  
Computed Tomography Images ◽  
First Case ◽  
Clinical Cases

ABSTRACT Anatomical variations of mandibular canal have rarely been reported in the literature. The aim of this paper is to present three clinical cases of bifid mandibular canal diagnosed with cone-beam computed tomography (CBCT) as well as discuss its clinical implications. The first case is very interesting due to its anatomic variation verified in a panoramic radiograph during orthodontic planning, mimicking an odontogenic tumor. The second and the third cases were identified during tomographic evaluation for third molar exodontia. The diagnosis of bifid canals is extremely relevant in order to avoid complications during surgical procedures and implant placement as well as anesthesia failures which cause pain, paresthesia and bleeding. Furthermore, the shape of these anatomical variations can be confused with bone lesions.

Sign in / Sign up

Export Citation Format

Share Document