scholarly journals Radiographic position of the mental foramen

2018 ◽  
Vol 1 (3) ◽  
Author(s):  
Tushar Manohar Rothe

Background: The location of the mental foramen is important for dental surgeons. Variations in its locations can be a cause of complications during local anesthesia or surgical procedures which involving mandible. The usual location of the mental foramen in an Indian population has not been previously reported.Aim: The purpose of this study was to evaluate the most common location of the mental foramen in an Indian population.Materials and Methods: 260 panoramic radiographs were evaluated with regard to the location and symmetry of the mental foramina in male and female subjects.Results: We found that the mental foramen was located between the first and second premolars in 20% , in line with the second premolar in 61%, between the second premolar and mesial root of first molar 3.8%, In the line of mesial root of first molar 5.3% and distal to mesial root of first molar 0.3%. It was symmetrical in 59 %.Conclusions: This study emphasis that the most common location of mental foramen is in the line of second premolar followed by between the two premolars. The clinician should asses the location of mental foramen before any surgical intervention involving mandible. 

2014 ◽  
Vol 15 (6) ◽  
pp. 766-769
Author(s):  
Vinod Kumar ◽  
Prahalad Hunsigi ◽  
Balakasi Reddy Kaipa ◽  
Rajini Reddy ◽  
Chakki B Arun Kumar ◽  
...  

ABSTRACT Background and objectives The position of mental foramen varies in different ethnic groups. The position of mental foramen is mainly important for achieving effective mental nerve block to carry out dental surgical procedures in mandible. Deviation in its position can be a cause of complication during local anesthesia or surgical procedures. The position of the mental foramen in South Indian and Northeast Indian population has not been reported. The purpose of the current study was to determine the most common location of the mental foramen (MF) and its bilateral symmetry in selected Indian population. Materials and methods 380 digital panoramic radiographs (DPR) of a randomly selected 2 Ethnic groups of Indian population were studied. Results The common position (59.2%) of the mental foramen was located between the 1st and 2nd premolars (P3) in Northeast Indians and in South Indians the common location (62.8%) was in line with the long axis of the 2nd premolar (P4), which was statistically significant in both Populations. Conclusion A bilateral symmetry was observed in the location of mental foramina, either mesial to or in line with the long axis of the 2nd premolar, which is consistent with the observations of similar studies in various ethnic or racial groups. In our study a statistically significant association between the 2 ethnic groups and the position of mental foramen exists. Therefore the position of mental foramen may be specific to racial groups facilitating accurate landmark for mental nerve block depending on the ethnic group. Further, studies are required with larger sample for better understanding of mental foramen location in different ethnic groups. How to cite this article Kumar V, Hunsigi P, Kaipa BR, Reddy R, Ealla KKR, Kumar CBA, Prasanna MD. Radiographic Localization of Mental Foramen in Northeast and South Indian Ethnic Groups of Indian Population. J Contemp Dent Pract 2014;15(6):766-769.


2011 ◽  
Vol 11 (2) ◽  
pp. 90-95 ◽  
Author(s):  
S. Rupesh ◽  
J. Jasmin Winnier ◽  
Sherin Anna John ◽  
Tatu Joy ◽  
Arun Prasad Rao ◽  
...  

2015 ◽  
Vol 9 (1) ◽  
pp. 297-302 ◽  
Author(s):  
Priyanka Parnami ◽  
Deepak Gupta ◽  
Vishal Arora ◽  
Saurabh Bhalla ◽  
Adarsh Kumar ◽  
...  

Objective : To familiarize new criteria to access vertical position of mental foramen in panoramic radiographs. Furthermore, to determine and compare the position and symmetry of mental foramen in horizontal as well as in vertical plane in Indian population and to compare the results with those reported for other populations in the literature. Further gender differences in mental foramen position were also accessed to comment on the reliability of panoramic radiographs for sex determination. Methods and Material : Six hundred digital panoramic radiographs were selected and studied regarding the location and symmetry of mental foramen. They were also compared with the other studies in the literature. The method employed is similar to that described by Al Jasser and Nwoku for horizontal position and Fishal et al. for vertical position of mental foramen. Certain modifications were carried out in Fishal’s criteria for vertical position assessment. Results : The commonest position of the mental foramen in horizontal plane was in line with the longitudinal axis of the second premolar (61.0%) while in vertical plane it was found to be located inferior to the apex of second premolar (72.2%). Conclusion : Mental foramen exists in different locations and possesses many variations. Hence, Individual, gender, age, race and assessing technique largely influence these variations. It suggests that the clinicians should carefully identify these anatomical landmarks, by analyzing all influencing factors, prior to their diagnostic or the other dental, surgical and implant operation.


2013 ◽  
Vol 5 (1) ◽  
pp. 29-33
Author(s):  
Jumroon Tungkeeratichai ◽  
Thongchai Bhongmakapat ◽  
Porncharn Saitongdee ◽  
Pisamai Orathai

ABSTRACT Purpose The purpose of this study was to establish a new external landmark of mental foramen to help facilitate prediction of the location during local anesthesia and during surgery of mandibular region. Materials and methods One hundred and ten adult Thai cadavers of 61 males and 49 females from Department of Anatomy, Faculty of Science, Mahidol University were included in this study. The anatomy of mental foramen in 110 adult Thai cadavers (220 sides) was studied from 2008 until 2011. Measurements in vertical plane were made: (i) From gingival sulcus to mental foramen = A, (ii) from mental foramen to inferior border of mandible = B, and (iii) the ratio of A/A + B = D. Measurements in horizontal plane were also made: (i) From symphysis menti to the mental foramen = S (in straight line and not related to mandibular curvature), and (ii) from symphysis menti to the mental foramen = C (in curved line related to mandibular curvature), and (iii) in relation to position of lower tooth/teeth, and (iv) in relation to cheilions (corners of the mouth). Results The results included 61 male and 49 female cadavers. On the right side, the proportion of A/A + B (D) of male and female was 0.50 and 0.46. On the left side, the proportion of A/A + B (D) of male and female was 0.50 and 0.46. The location of right and left cheilion was related with the position of mental foramen, mostly at center (male: 63.93 and 70.49%, female: 61.22 and 73.47%). If center ± 0.3 cm it was possible to find the mental foramen more easily than the point of the center (male: 95.08 and 91.80%, female: 87.76 and 93.88%). If center ± 0.5 cm, it could find the mental foramen more easily than the point of the center ± 0.3 cm (male: 98.36 and 98.36%, female: 95.92 and 97.96%). Conclusion The knowledge gained from this study is quite important, since it helps the surgeon to easily identify the mental foramen prior to surgery which is halfway between gingival sulcus and inferior border of mandible in vertical plane and at the cheilion position in horizontal plane. How to cite this article Tungkeeratichai J, Bhongmakapat T, Saitongdee P, Orathai P. A New External Landmark for Mental Foramen. Int J Otorhinolaryngol Clin 2013;5(1):29-33.


2013 ◽  
Vol 5 (1) ◽  
pp. 7-11
Author(s):  
Jumroon Tungkeeratichai ◽  
Thongchai Bhongmakapat ◽  
Porncharn Saitongdee ◽  
Pisamai Orathai

ABSTRACT Purpose The purpose of this study was to establish a new external landmark of mental foramen to help facilitate prediction of the location during local anesthesia and during surgery of mandibular region. Materials and methods One hundred and ten adult Thai cadavers of 61 males and 49 females from Department of Anatomy, Faculty of Science, Mahidol University were included in this study. The anatomy of mental foramen in 110 adult Thai cadavers (220 sides) was studied from 2008 until 2011. Measurements in vertical plane were made: (i) From gingival sulcus to mental foramen = A, (ii) from mental foramen to inferior border of mandible = B, and (iii) the ratio of A/A + B = D. Measurements in horizontal plane were also made: (i) From symphysis menti to the mental foramen = S (in straight line and not related to mandibular curvature), and (ii) from symphysis menti to the mental foramen = C (in curved line related to mandibular curvature), and (iii) in relation to position of lower tooth/teeth, and (iv) in relation to cheilions (corners of the mouth). Results The results included 61 male and 49 female cadavers. On the right side, the proportion of A/A + B (D) of male and female was 0.50 and 0.46. On the left side, the proportion of A/A + B (D) of male and female was 0.50 and 0.46. The location of right and left cheilion was related with the position of mental foramen, mostly at center (male: 63.93 and 70.49%, female: 61.22 and 73.47%). If center ± 0.3 cm it was possible to find the mental foramen more easily than the point of the center (male: 95.08 and 91.80%, female: 87.76 and 93.88%). If center ± 0.5 cm, it could find the mental foramen more easily than the point of the center ± 0.3 cm (male: 98.36 and 98.36%, female: 95.92 and 97.96%). Conclusion The knowledge gained from this study is quite important, since it helps the surgeon to easily identify the mental foramen prior to surgery which is halfway between gingival sulcus and inferior border of mandible in vertical plane and at the cheilion position in horizontal plane.


2016 ◽  
Vol 2 (3) ◽  
pp. 147-155 ◽  
Author(s):  
Saritha Maloth ◽  
◽  
Shrinivas T R ◽  
Padmashree S ◽  
Pramod Krishna B ◽  
...  

2019 ◽  
Vol 31 (4) ◽  
pp. 889-893
Author(s):  
Mihajlo Petrovski ◽  
Svetlana Jovevska ◽  
Olivera Terzieva-Petrovska

Background: Evaluation of the position of foramen mentale has great significance and it is very important aids in endodontic, oral-surgical, periodontal interventions, as well as diagnostic procedures. Thus, in view of this, the present study was conducted among the population in North Macedonia, to determine the most common location of the mental foramen and to estimate difference in position of foramen mentale in correlation with the second lower premolar teeth. The mental foramen is an opening located on the external surface of the mandible in the region of the mandibular premolars. Radiographically the foramen mentale can be as an oval or round radiolucent zone in the inferior part of corpus mandible on lateral sides, on the left and right side. Panoramic radiographs are the most commonly used extra-oral radiographic aids in dentistry since they provide a rapid and wide picture of mandible and the maxilla in the same time. This technique allows the adequate localization of foramen mentale. The main aim of study is to evaluate the position of the mental foramen and its relationship with mandibular premolars among the population in Republic of North Macedonia Material and method: A total number of 250 panoramic radiographs were evaluated for the positioning of the mental foramen. When assessing the position of the mental foramen, its position is determined in relation with the mandibular premolars and the mandibular median line. All radiographic images in which can not be localized and confirmed the presence of the mental aperture was also excluded from the examination. The examination was performed on a negatoscope if it is classical panoramic x-ray or adequate software used for digital panoramic x-rays. If necessary, magnification was used for magnification of the images. The relationship of foramen mentale with the lower premolars was given according to the following classification: (1) if the position of foramen mentale is distally from the line that passes between the second premolar and the first molar in the lower jaw-first class; (2) if the position of foramen mentale is between the vertical central axis of the second premolar and the passing line between the second premolar and the first molar in the lower jaw- second class; (3) if the position of the foramen mentale is between the vertical axis of the second premolar and the line passing between the first and second premolars in the lower jaw- third class; (4) if the position of foramen mentale is between the line that passes between the first and second premolars in the lower jaw and the vertical central axis of the first premolar-fourth class and if the position of foramen mentale is mesially from the vertical center axis of the first premolar- fifth class. Results: On the basis of the data from our research, it is noted that in near 60%, foramen mentale is positioned between the roots of the first and second lower premolars. The most common position for foramen mentale is the third class (which means that foramen mentale is between the vertical axis of the second premolar and the line passing between the first and second premolars in the lower jaw). Conclusion: In conclusion, the present results showed variations in position of foramen mentale. So it must be noted that local differences in foramen mentale position may occur in a population. This variability should alert the oral surgeons while performing oral surgical and periodontal interventions. If the studies related to variations in the position of foramen mentale are carried out in larger numbers, this data will be reliable for dental medicine clinicians, and with this type of information the possibility of complications will be minimized.


Author(s):  
Shweta Jha ◽  
Renu Chauhan

Background: Nutrient foramen of long bones defines the extent of bone vascularisation. Information regarding nutrient foramen is necessary to conserve circulation during orthopaedic and surgical procedures. The present study was conducted to examine the position, number and calibre of nutrient foramina in 100 dry femora belonging to North Indian population.Methods: The total length (TL) of each femur was measured by taking the measurement between the most proximal aspect of the head of the femur and the most distal aspect of the medial condyle. Number of nutrient foramina was determined by using a magnifying lens. Distance of nutrient foramen from upper end was measured. Direction and obliquity of nutrient foramina were noted. Position of nutrient foramina was determined in relation to length of femur and linea aspera. Caliber of nutrient foramen was measured using 18, 20, 22 and 24-gauge needles.Results: Length of femur on right side was 435.2 mm (Range 393-523 mm). Length of femur on left side was 437 mm (range 369-524). 78 (78%) femora had single nutrient foramen, 11 (11%) had double nutrient foramen and 11 (11%) had no nutrient foramen. All foramina were directed upwards. Maximum foramina were located in middle third of femur (84%) followed by upper third of femur (8%). Most common location was on the intermediate area between two lips of linea aspera (42%) followed closely by medial lip of linea aspera (36%).Conclusions: This study has provided additional data on the subject which will help in resection, surgical procedures and transplantation techniques by orthopedician in North Indian population.


2012 ◽  
Vol 9 (2) ◽  
pp. 96-98
Author(s):  
Brian A Bruckner ◽  
Matthias Loebe

Patients undergoing re-operative cardiac surgical procedures present a great challenge with regard to obtaining hemostasis in the surgical field. Adhesions are ever-present and these patients are often on oral anti-coagulants and platelet inhibitors. As part of a well-planned surgical intervention, a systematic approach to hemostasis should be employed to decrease blood transfusion requirement and improve patient outcomes. Topical hemostatic agents can be a great help to the surgeon in achieving surgical field hemostasis and are increasingly being employed. Our approach, to these difficult patients, includes the systematic and planned use of AristaAH, which is a novel hemostatic agent whose use has proven safe and efficacious in our patient population.


2021 ◽  
pp. 20200505
Author(s):  
Aykağan Coşgunarslan ◽  
Emin Murat Canger ◽  
Damla Soydan Çabuk

Objectives: Proton pump inhibitors (PPI) provide a long-lasting anti-acidic effect by inhibiting the proton pump, and they are one of the most commonly prescribed drugs worldwide. PPIs adversely affect the bone structure via deficiency of vitamins and minerals. The aim of this study was to investigate the possible PPI-induced bone changes in the mandible on panoramic radiographs with the methods of fractal analysis and panoramic morphometric indices. Methods: Panoramic radiographs of 402 patients were used (201 PPI users, 201 control group). Fractal analysis was performed on 4 regions of interests (ROI): 1- upper part of the ramus, 2- angulus, 3- anterior of the mental foramen, 4- distal of the middle ramus. Also, the panoramic mandibular index (PMI), mandibular cortical width (MCW), and Klemetti index (KI) were performed on radiographs. Results: There were significant differences in terms of ROI3, MCW, and KI between the control and study groups (p < 0.05) while there was no significant difference for ROI1, ROI2, ROI4, and PMI (p > 0.05). Males were severely affected than females. Conclusions: Osteoporotic changes were detected in the trabecular and cortical bone in the mental foramen region in PPI users with fractal analysis and morphometric indices, while there were no differences for mandibular ramus and angulus regions according to fractal analysis.


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