scholarly journals THE FEATURES OF MENTAL NERVE AND VARIANT ANATOMY OF MENTAL FORAMEN

2016 ◽  
Vol 15 (2) ◽  
pp. 66-68
Author(s):  
N. M. Navarchuk
Keyword(s):  
Mental Foramen ◽  
Mental Nerve ◽  
Variant Anatomy

scholarly journals Study of Number, Shape, Size and Position of Mental Foramen in Bangladeshi Dry Adult Human Mandible

2014 ◽  
Vol 11 (1) ◽  
pp. 7-10 ◽  
Author(s):  
Md Mesbahul Hoque ◽  
Shamim Ara ◽  
Shahanaz Begum ◽  
AHM Mostafa Kamal ◽  
Md Abdul Momen
Keyword(s):  
Prior Knowledge ◽  
Nerve Block ◽  
Mandibular Canal ◽  
Mental Foramen ◽  
Mental Nerve ◽  
Cross Sectional ◽  
Accessory Mental Foramen ◽  
Medical College ◽  
Adult Human ◽  
Morphology And Morphometry

Context: Paralysis of the mental nerve is one of the principal complications of surgery of the mandibular canal and mental foramen region. Therefore, identification of mental foramen is important for dental surgeons in nerve block and surgical procedures like apico curettage of mandibular premolars, amalgam filling, peridental surgery etc. to avoid injury to neurovascular bundle. Verification of the existence of accessory mental foramina would prevent accessory mental nerve injury during periapical surgery. Therefore, prior knowledge of morphology and morphometry of mental and accessory mental foramen to particular block may cause effective mental block anaesthesia. Besides this, mental foramen and accessory mental foramen have been found to vary in position in different ethnic groups. So, it is important to study the morphology and morphometry of mental foramen. Materials and Methods: A cross-sectional, analytical type of study was conducted in the Department of Anatomy, Dhaka Medical College using dried adult human mandibles of unknown sexes. Number and shapes of mental foramen and accessory mental foramen were observed. Size and position were determined by using digital sliding calipers. Result: Mental foramen was present in all one hundred and eighty five (185) observed mandibles and it was bilateral. Accessory mental foramen was present in 1.62% on left side while on right side, it was 0.54%. None of the mandibles presented with bilateral accessory mental foramen. Shape was predominantly oval with 55.7% on right side and 53.5% on left side while it was round in 44.3% on right side and 46.5% on left side. Mental foramen was commonly located between 1st and 2nd premolar, below 2nd premolar and between 2nd premolar and 1st molar. Conclusion: Prior knowledge of mental foramen variations helps surgeon in planning surgery in that region to avoid nerve damage and also for effective mental nerve block anaesthesia. DOI: http://dx.doi.org/10.3329/bja.v11i1.20501 Bangladesh Journal of Anatomy, January 2013, Vol. 11 No. 1 pp 7-10

scholarly journals Frequency of accessory mental foramen and anatomical variability of mental nerve anterior loop in a Peruvian population: A retrospective cone-beam computed tomography study.

2020 ◽  
Vol 9 (3) ◽  
pp. 202-211
Author(s):  
José Heberth Tofiño-Medina ◽  
◽  
Luis Ernesto Arriola-Guillén ◽  
Yalil Augusto Rodríguez-Cárdenas ◽  
Aron Aliaga-Del Castillo ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Morphological Characteristics ◽  
Mental Foramen ◽  
Cone Beam ◽  
Anatomical Landmarks ◽  
Mental Nerve ◽  
Anterior Border ◽  
Accessory Mental Foramen ◽  
Anterior Loop

Objective: To evaluate the frequency of accessory mental foramen (AMF) and anatomical variants of the mental nerve anterior loop using cone-beam computed tomography (CBCT) in a Peruvian population. Material and methods: This retrospective cross-sectional study evaluated 80 hemi-mandibles from 40 subjects using CBCT. The sample included 38 females and 42 males, with an average age of 25±4.45 years. A 3D multi-planar reconstruction was performed to identify the location and presence of accessory mental foramina, their morphological characteristics (oval or circular), their position with respect to the mental foramen (MF), anterior loop (AL) path and other anatomical landmarks including lengths and angles. Statistical analyses included chi square and t-tests. The significance level was p<0.05. Results: The frequency of AMF was 17% and the average distance AL-MF was 4.76±1.97mm. The measurements of the anterior border of AL and MF to the inferior mandibular border showed significant differences according to the sex (p<0.001 and p=0.009, respectively). Conclusion: The AMF prevalence was approximately 17%. There is no association between the AMF position and its morphology, sex or side evaluated. The distances from the anterior border of the AL and from the inferior border of the MF to the inferior mandibular border were greater in males. These findings should be considered when planning implant or mini-implant placement in this region.

scholarly journals A CBCT aided assessment for the location of mental foramen and the emergence pattern of mental nerve in different dentition status of the Saudi Arabian population

2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Kumar Chandan Srivastava
Keyword(s):  
Cone Beam Ct ◽  
Saudi Arabian ◽  
Mental Foramen ◽  
Cone Beam ◽  
Mental Nerve ◽  
Emergence Pattern ◽  
Type Iii ◽  
Common Location ◽  
Anterior Loop ◽  
Arabian Population

Objective: The anatomy of mental foramen (MF) is a noteworthy landmark during any surgical procedures in the inter-foraminal region. Thus, the study aims at evaluating the location of MF and the emergence pattern of MN in three status of dentition in Saudi Arabian population. Material and Methods: In a prospective study, we have analyzed 240 cone beam computed tomography (CBCT) for the location of MF and the emergence pattern of MN. The study comprising three groups, namely dentulous, partially edentulous and edentulous, each having eighty CBCT scans. We presented the data in percentages. The chisquare and McNemar’s test were used for testing association and pair-wise analysis, respectively. Results: The most common location of MF was below the apex of the second premolar irrespective of dentition status, with 54.2% in right and 60% in the left side of the jaw. Among the dentition status, left side of the mandible has shown significant variation for the location of MF, whereas gender and age showed variation in the right side. Anterior loop (AL) (Type-III) the emergence pattern of MN was the highest in all dentition status, with 51.7% in right and 53.8% on the left side. The variation in the emergence pattern of MN in terms of gender and side of the jaw was statistically significant. Conclusion: In the Saudi Arabian population, the apex of second premolar and type III/AL was the most prevalent location of MF and the emergence pattern of MN, respectively. KEYWORDS Anterior loop; Cone beam CT; Mandible; Mental foramen; Mental nerve.

scholarly journals Study of Position, Shape, and Size of Mental Foramen Utilizing Various Parameters in Dry Adult Human Mandibles from North India

ISRN Anatomy ◽  
2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Virendra Budhiraja ◽  
Rakhi Rastogi ◽  
Rekha Lalwani ◽  
Prabhat Goel ◽  
Subhash Chandra Bose
Keyword(s):  
Longitudinal Axis ◽  
Mental Foramen ◽  
Morphometric Parameters ◽  
North India ◽  
Invasive Procedures ◽  
Mental Nerve ◽  
Adult Human ◽  
Important Landmark ◽  
The Mean ◽  
The Right

Background. As the mental foramen (MF) is an important landmark to facilitate surgical, local anesthetic, and other invasive procedures, the present study was aimed to elucidate its morphological features and morphometric parameters with reference to surrounding landmarks. Material and Method. 105 dry adult human mandibles of unknown sex were observed for position, shape, and number of mental foramina. Their size was measured using a digital vernier caliper and statistically analyzed by mean and standard deviations (SD). Results. In most cases (74.3%), the MF was oval in shape and situated on the longitudinal axis of the 2nd premolar tooth (61% on right side and 59.1% on left side). The mean distance for the right and left sides was measured from various landmarks. Conclusion. Prior knowledge of mental foramen variations helps surgeons in planning surgery in that region to avoid nerve damage and also enable effective mental nerve block anesthesia.

Detection of anterior loop and other patterns of entry of mental nerve into the mental foramen: A radiographic study in panoramic images

2013 ◽  
Vol 3 (1) ◽  
pp. 21 ◽  
Author(s):  
Aastha Manchanda ◽  
AshaRaghunandan Iyengar ◽  
Seema Patil ◽  
KikkeriSeetharamiaha Nagesh ◽  
Sushma Mehkri
Keyword(s):  
Mental Foramen ◽  
Radiographic Study ◽  
Mental Nerve ◽  
Anterior Loop ◽  
Panoramic Images

Mental Foramen and Mental Nerve: Changes with Age

1986 ◽  
Vol 126 (1) ◽  
pp. 21-28 ◽  
Author(s):  
A. Gershenson ◽  
H. Nathan ◽  
E. Luchansky
Keyword(s):  
Mental Foramen ◽  
Mental Nerve

scholarly journals Morphology and morphometry of mental foramen in adult human mandibles of North Indian population

2015 ◽  
Vol 04 (02) ◽  
pp. 76-79
Author(s):  
Poonam Verma ◽  
Keyword(s):  
Indian Population ◽  
Average Distance ◽  
Mental Foramen ◽  
Circular Opening ◽  
Anterior Surface ◽  
Mental Nerve ◽  
Adult Human ◽  
Morphology And Morphometry ◽  
Average Size ◽  
Age And Sex

Abstract Background and aim : Mental foramen is an oval or circular opening present on the anterior surface of mandible through which the mental nerve and vessels exit It forms an intportant landmark for human mandible for both invasive and noninvasive procedures. Its position vary according to the age and race. The aim of the study is to provide data on morphology and morphometry of mental foramen. Materials and Methods : The present study was done on ninety dried adult human mandibles of unknown age and sex. Incidences and shapes of the mental and accessory mental foramen were observed. Size and the distances from the various landmarks were noted with the help of digital Vernier calipers. Results: Mental forantina were found bilaterally in all (100%) the mandibles. Accessory mental foramina were found in five mandibles (5.5%) on right side and three mandibles (3.3%) on left side. Shape of the mental foramina was predominantly rounded. Average size of mental and accessory mental foramina was 2.56 mm and 1 mm respectively. The position of the mental foramina below the apex of second premolar , between the first and second premolar and between the second premolar and first molar and below the apex of first premolar tooth were 64.4%, 21.1%, 8.8% and 5.5% respectively. The average distance of the accessory mental forantina from the mental foramen was 0.66 mm and average location was below the first molar tooth. Conclusion: All these findings can supplement useful data for population diversities and can help the surgeons, anatomists, orthodontists and paleoanthropologists to carry out their procedures successfully.

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

2016 ◽  
Vol 7 (6) ◽  
pp. 82-86 ◽  
Author(s):  
Muna Kadel ◽  
Bishwo P Sedhain ◽  
Prakash MS Dangol
Keyword(s):  
Mental Foramen ◽  
Anatomical Landmark ◽  
The Body ◽  
Horizontal Distance ◽  
Posterior Border ◽  
Medical Sciences ◽  
Mental Nerve ◽  
Lateral Aspect ◽  
Paired T Test ◽  
Age And Sex

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. 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. Student 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 12.26mm on the left, (2) alveolar margin and MF was 13.95 mm on right &13.75 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.Asian Journal of Medical Sciences Vol.7(5) 2016 82-86

scholarly journals Evaluation of location of mental foramen using cone-beam computed tomography in Pakistani population.

2021 ◽  
Vol 28 (09) ◽  
pp. 1341-1345
Author(s):  
Tooba Saeed ◽  
Tahmasub Faraz Tayyab ◽  
Ahmad Liaquat ◽  
Muhammad Adnan Akram ◽  
Nabeela Riaz ◽  
...  
Keyword(s):  
Maxillofacial Surgery ◽  
Three Dimensional ◽  
Mental Foramen ◽  
Mental Nerve ◽  
Cross Sectional ◽  
Pakistani Population ◽  
Common Location ◽  
Radiological Images ◽  
Different Populations ◽  
The University

Objectives: The location of mental foramen (MF) is significant in many surgical and nonsurgical procedures related to the mandible to avoid the injury of the mental nerve. The location of mental foramen is considered variable in different populations and even in different groups of population. We used CBCT to locate the position of the mental foramen. As high-resolution three-dimensional images of CBCT reveal anatomic structures more clearly, it improves mental foramen detection, offering advantages over two-dimensional radiological images. Study Design: Cross-sectional Descriptive study. Setting: Department of Oral & Maxillofacial Surgery, University College of Medicine & Dentistry, The University of Lahore. Period: July 2017 to Dec 2019. Material & Methods: A sample of 230 CBCT scans was obtained from the data already available in the department of Oral & Maxillofacial Surgery. The horizontal position of MF was analyzed utilizing 3D images of CBCT at 6 positions concerning the long axis of mandibular premolars and molars. Results: Ninety-six (41.7%) mental foramen were located at position 3, i.e., between the first and second premolars. Moreover, this was the most common location of the mental foramen. Followed by position 4 (in line with the long axis of the second premolar) 90(39.1%). No statistically significant relationship between the gender of the patient and the location of the mental foramen was seen. Conclusion: The location of mental foramen is variable; care should be taken in performing procedures in the area of the mental foramen to avoid iatrogenic injury of the mental nerve. Our results are different from previous studies conducted in the Pakistani population.

scholarly journals Location of Mental Foramen in Dentate Adults using Orthopantomogram

2018 ◽  
Vol 56 (212) ◽  
pp. 791-795
Author(s):  
Barsha Ghimire ◽  
Sujaya Gupta
Keyword(s):  
Anatomical Variations ◽  
Mental Foramen ◽  
Mental Nerve ◽  
Panoramic Radiographs ◽  
Anaesthetic Solution ◽  
Dental Procedures ◽  
Line Parallel ◽  
Imaginary Line ◽  
Study Population

Introduction: Understanding the anatomical variations in the position of mental foramen are significant for different dental procedures. This study identified the position of the mental foramen among a sample of Nepalese population visiting a dental college in Kathmandu. Methods: Total 417 panoramic radiographs (orthopantomograms) were selected from a total of 567 radiographs. The mental foramen location was determined by drawing imaginary line parallel with the long axis of the lower premolars . The mental foramen location was then classified into six classes. Results: In the study population, the mental foramina were located mostly between the lower premolars 163 (39.1%), followed by in line with second premolar 148 (35.5%) of the mental foramen was located under the second premolar apex. Conclusions: The study shows that the anaesthetic solution should be injected between the lower premolars or below the lower 2nd premolar in the Nepalese population for successful and secure mental nerve blocking.

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