scholarly journals CBCT Assessment of Mental Foramen Position Relative to Anatomical Landmarks

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Mahnaz Sheikhi ◽  
Mitra Karbasi Kheir
Keyword(s):  
Mental Foramen ◽  
Anatomical Landmarks ◽  
Cross Sectional ◽  
Gender And Age ◽  
Significant Difference ◽  
The Mean ◽  
Edentulous Patients ◽  
Inferior Border ◽  
The Right ◽  
Superior Border

Purpose. This study was carried out on an Iranian population aiming to investigate mental foramen position relative to inferior border of mandible and skeletal midline and its gender and age differences on CBCT projections. Materials and Methods. A number of 180 CBCT images of patients were analyzed in different planes (tangential, cross-sectional, and axial). The distances from the superior border of mental foramen to the inferior border of mandible and from the anterior border of mental foramen to the midline were calculated. Results. The mean distance from mental foramen to the inferior border of mandible in the right side was 13.26 mm (SD ± 2.34) and in the left side was 13.37 mm (SD ± 2.19). There was a statistically significant difference between genders in terms of the distance between mental foramen and inferior border of mandible (P value = 0.000). The mean distances from mental foramen to midline were 25.86 mm (SD ± 0.27) and 25.53 mm (SD ± 0.31) in the right and left sides, respectively. Conclusions. The vertical and horizontal positions of mental foramen can be determined from stable anatomical landmarks such as mandibular inferior border and skeletal midline in both dentulous and edentulous patients. The distance from the superior border of mental foramen to the inferior border of mandible exhibited sexual dimorphism.

Evaluation of the Position of Mental Foramen for Clinical and Forensic Significance in terms of Gender in Dentate Subjects by Digital Panoramic Radiographs

2016 ◽  
Vol 17 (9) ◽  
pp. 762-768 ◽  
Author(s):  
Amit Mhapuskar ◽  
Shweta Thakare ◽  
Darshan Hiremutt ◽  
Versha R Giroh ◽  
Kedarnath Kalyanpur ◽  
...  
Keyword(s):  
Vertical Plane ◽  
Mental Foramen ◽  
Forensic Identification ◽  
P Value ◽  
Anatomical Landmarks ◽  
Panoramic Radiographs ◽  
Lower Border ◽  
Significant Difference ◽  
Common Position ◽  
Inferior Border

ABSTRACT Introduction Evaluation of the position of mental foramen aids in forensic, surgical, endodontic, as well as diagnostic procedures. Thus, in view of this, the present study was conducted among the population of Pune, a central part of India, to determine the most regular location of the mental foramen and to estimate difference in position of mental foramen based on gender. Materials and methods The present retrospective study was commenced on 200 digital panoramic radiographs of dentate patients. The location of the representation of the mental foramen was traced. Measurements for evaluating distance of superior and inferior borders of the foramen in relation to the lower border of the mandible were made using the reference lines drawn from anatomical landmarks. The data so obtained were statistically analyzed using chi-square test. Results The most common position of mental foramen among Pune population in horizontal plane in both male and female patients was in line with second premolar followed by position in between first and second premolar, whereas in the vertical plane, most common position was at or in line with apex of second premolar followed by in between apex of first and second premolar. The variation in length of superior and inferior border of the foramen in relation to lower border of the mandible with respect to gender was found to be significant, with p-value <0.05. Conclusion There was no difference in position of mental foramen in horizontal and vertical planes based on gender. Clinical significance The stability of location of mental foramen and significant difference in length of superior and inferior border of the foramen in relation to lower border of the mandible with respect to gender offer its application in forensic identification of gender. How to cite this article Thakare S, Mhapuskar A, Hiremutt D, Giroh VR, Kalyanpur K, Alpana KR. Evaluation of the Position of Mental Foramen for Clinical and Forensic Significance in terms of Gender in Dentate Subjects by Digital Panoramic Radiographs. J Contemp Dent Pract 2016;17(9):762-768.

Age Related Change of Inner Diameter of Ampulla of Fallopian Tube in Bangladeshi Female Cadaver

2018 ◽  
Vol 4 (2) ◽  
pp. 137-140
Author(s):  
Hasna Hena ◽  
Shamim Ara ◽  
Rubina Qasim ◽  
Dilruba Siddiqua ◽  
Fatema Johora ◽  
...  
Keyword(s):  
Fallopian Tube ◽  
Age Groups ◽  
Uterine Cavity ◽  
Fallopian Tubes ◽  
Cross Sectional ◽  
Age Related ◽  
Significant Difference ◽  
Inner Diameter ◽  
The Mean ◽  
The Right

Background: The fallopian tubes act as conduit for spermatozoa to reach the oocyte and to convey the fertilized (egg) to enter the uterine cavity following fertilization. Problems with the fallopian tubes can lead to infertility. Detailed morphological and histological knowledge is essential for the diagnosis and management of fallopian tube disease.Objective: The purpose of the present study was to identify the inner diameter of ampulla of the fallopian tube and its changes with advancing age.Methodology: This descriptive cross-sectional study was conducted in the Department of Anatomy at Dhaka Medical College, Dhaka, Bangladesh from July 2008 to June 2009 for a period of one (01) year. This present study was performed on post mortem fallopian tubes of Bangladeshi female. Among them lowest age was 12 years and highest age was 50 years. Samples were divided into three differential age groups named asgroup A (10 to 13 years), group B (14 to 45 years), and group C (46 to 50 years). All samples were studied morphologically and histologically.Results: The mean inner diameter of the ampulla of the right and left fallopian tubes ranged from 1.99±0.08 to 3.24±0.27 mm. The difference between all the groups were statistically significant (p < 0.001).Conclusion: The mean difference of the inner diameter of the ampulla of the right and left fallopian tubesbetween groupA and groupB and groupB and groupC were statistically significant; however, there was no significant difference between right and left fallopian tube.Journal of National Institute of Neurosciences Bangladesh, 2018;4(2): 137-140

scholarly journals The Age- and Gender-wise Assessment of the Position and Shape of Mental Foramen in Patients’ Panoramic Radiography

2021 ◽  
Vol 23 (6) ◽  
pp. 806-817
Author(s):  
Hamzeh Ekran ◽  
◽  
Amin Ghanbarnejad ◽  
Masomeh Afsa‌ ◽  
◽  
...  
Keyword(s):  
Mental Foramen ◽  
Anatomical Landmarks ◽  
Radiographic Images ◽  
Panoramic Images ◽  
The Mean ◽  
And Gender ◽  
Student’S T ◽  
The Right ◽  
Posterior Position ◽  
Anterior Posterior

Background and Aim: Recognizing the position of the Mental Foramen (MF) is essential in numerous cases, such as anesthesia injection and periapical surgeries in the anterior region of the mandible. Furthermore, the diversity in the location and position of MF can develop problems during surgery in this region. Methods & Materials: The present study examined anatomical landmarks based on panoramic radiographic images obtained in Bandar Abbas City, Iran. In total, 450 panoramic radiographic images of men and women were assessed. All explored images were converted to JPEG format and entered in real size in Auto CAD software (2014). The collected data were analyzed in SPSS by one-way Analysis of Variance (ANOVA), Student’s t-test, and Chi-squared test. Ethical Considerations: This study was approved by the Ethics Committee of Hormozgan University of Medical Sciences (Code: IR.HUMS.REC.1394.189). Results: The obtained data revealed that the mean distance from the MF to the lower edge of the mandible on the right and left was 10.53 mm and 10.51 mm, respectively. The mean distance from the MF to the posterior side of the mandible equaled 49.36 mm on the right and 48.72 mm on the left. Moreover, the mean distance of MF to the midline of the lower jaw on the right and left was calculated as 27.16 and 26.27 mm, respectively. Furthermore, in most cases, the anterior-posterior position of MF was symmetrical concerning anatomical landmarks. The anterior-posterior distance of MF to mandibular midline was significantly different between the explored males and females (P<0.001). There was no significant gender-wise difference in the shape of the MF (P=0.89). Conclusion: The present research results signified that the most frequent anterior-posterior position of the MF is between the apex of the first and second premolars. Furthermore, the most prevalent shape of MF is oval per panoramic images.

scholarly journals Can the coronavirus disease 2019 (COVID-19) cause choroiditis and optic neuropathy?

2021 ◽  
Vol 19 ◽  
pp. 205873922110590
Author(s):  
Kürşad Ramazan Zor ◽  
Gamze Yıldırım Biçer ◽  
Nesrin Tutaş Günaydın ◽  
Erkut Küçük ◽  
Uğur Yılmaz
Keyword(s):  
Choroidal Thickness ◽  
Cross Sectional Study ◽  
Control Group ◽  
Fiber Layer ◽  
Cross Sectional ◽  
Subfoveal Choroidal Thickness ◽  
Rnfl Thickness ◽  
Significant Difference ◽  
The Mean ◽  
The Right

Objectives: We aim to investigate the involvement of the choroid and retinal nerve fiber layer (RNFL) in COVID-19 patients using spectral domain optical coherence tomography. Methods: This cross-sectional study was conducted between April and June 2020. 40 patients (23 female and 17 male) with COVID-19 and 42 healthy individuals (26 female and 16 male) were included in the study. The OCT scans were performed 4 weeks after the COVID-19 diagnosis. Results: In the COVID-19 group, in the right eyes, the mean nasal choroidal thickness was 295.70 ± 7,046 μm ( p = 0.017), mean subfoveal choroidal thickness was 333.25 ± 6,353 μm ( p = 0.003), mean temporal choroidal thickness was 296.63 ± 6,324 μm ( p = 0.039), and mean RNFL was 89.23 ± 1.30 μm ( p = 0.227). In the left eyes, mean nasal choroidal thickness was 287.88 ± 9,033 μm ( p = 0.267), mean subfoveal choroidal thickness was 333.80 ± 9,457 μm ( p = 0.013), mean temporal choroidal thickness was 298.50 ± 9,158 μm ( p = 0.079), and mean RNFL was 89.48 ± 1,289 μm ( p = 0.092). Compared with the control group, the patient group had significant thickening of the choroidal thickness in all quadrants of the right eyes, and significant thickening of the subfoveal choroidal thickness in the left eyes. There was no significant difference in the RNFL thickness between groups ( p > 0.05). Conclusion: COVID-19 may cause a subclinical involvement in the choroidal layer.

scholarly journals Relationship between the Occlusal Plane corresponding to the Lateral Borders of the Tongue and Ala-tragus Line in Edentulous Patients

2012 ◽  
Vol 13 (5) ◽  
pp. 590-594 ◽  
Author(s):  
Carole Abi-Ghosn ◽  
Carla Zogheib ◽  
Joseph E Makzoumé
Keyword(s):  
Acrylic Resin ◽  
Repeated Measure ◽  
Occlusal Plane ◽  
Significant Difference ◽  
Measure Analysis ◽  
The Mean ◽  
Edentulous Patients ◽  
Student’S T ◽  
Inferior Border ◽  
The Relationship

ABSTRACT Aim Definitions of the ala-tragus line (ATL) cause confusion, because the exact points of reference for this line do not agree. This study determined the relationship between the prosthetic occlusal plane (OP) corresponding to the lateral borders of the tongue and ATL which was established by using the inferior border of the ala of the nose and (1) the superior border of the tragus (ATL 1), (2) the tip (ATL 2) and (3) the inferior border of the tragus (ATL 3). Materials and methods Neutral zone moldings using phonation and autopolymerizing acrylic resin were recorded and leveled with the lateral borders of the tongue. Lateral cephalometric radiographs were taken of each subject by a standard method. Tracings were obtained on acetate paper to show the prosthetic OP and the three ATLs. The relationship between the prosthetic OP and each of ATL was measured for each subject. Mean and standard deviation values were then calculated for the relationship. Statistical analysis was performed using repeated measure analysis of variance followed by Bonferroni pairwise comparisons and Student's t-test (α = 0.05). Results Significant difference was found between the three mean angles (p = 0.001). There was no significant difference between the mean angle (5.00° ± 4.38) formed by OP and ATL 2, and the mean angle (4.90° ± 3.50) formed by OP and ATL 3 (p = 1.00) which revealed the smallest. Conclusion The findings of this study indicated that ATLs, extending from the inferior border of the ala of the nose to (1) the tip of the tragus of the ear, and (2) the inferior border of the tragus presented the closest relationship to the prosthetic OP corresponding to the lateral borders of the tongue. Clinical significance When the ATL is used for orientation of the OP in denture construction, it would seem preferable to define it as running from the inferior border of the ala of the nose to the tip or to the inferior border of the tragus of the ear. How to cite this article Abi-Ghosn C, Zogheib C, Makzoumé JE. Relationship between the Occlusal Plane corresponding to the Lateral Borders of the Tongue and Ala-tragus Line in Edentulous Patients. J Contemp Dent Pract 2012;13(5):590-594.

scholarly journals Morphometric Analysis of Dry Adult Human Mandibular Ramus

2015 ◽  
Vol 12 (1) ◽  
pp. 14-16
Author(s):  
Md Mesbahul Hoque ◽  
Shamim Ara ◽  
Shahanaz Begum ◽  
AHM Mostafa Kamal ◽  
Sharmina Sayeed
Keyword(s):  
Anterior Part ◽  
Donor Site ◽  
Inferior Alveolar Nerve ◽  
Anatomical Landmarks ◽  
Mandibular Ramus ◽  
Cross Sectional ◽  
Medical College ◽  
Adult Human ◽  
Significant Difference ◽  
The Right

Context: Mandible is the lower jaw bone providing attachment of muscles of mastication and facial expression and provides pathway for inferior alveolar nerve and vessels. The mandibular ramus is almost vertical in adult but more oblique in old age. The anterior part of ramus can be used as the donor site for reconstruction of small bone defects in the oral and maxillofacial region. A relatively short mandibular ramus may be an important unfavorable anatomic factor in difficult laryngoscopy. The aim of this study was to determine the morphometry of mandibular ramus from various anatomical landmarks in one hundred eighty five dry adult human mandibles. Materials and Methods: A cross-sectional, analytical type of study was conducted in the department of Anatomy, Dhaka Medical College, Dhaka from July 2010 to June 2011. Morphometry of mandibular ramus was measured with the help of digital sliding calipers. Results: The mandibular ramus was at the same distance from each landmark on both sides demonstrating symmetry. There was no significant difference in the values on the right and left sides of the mandibles. Conclusion: Anatomical knowledge of this study might be useful in certain surgical procedure. DOI: http://dx.doi.org/10.3329/bja.v12i1.22612 Bangladesh Journal of Anatomy, January 2014, Vol. 12 No. 1 pp 14-16

scholarly journals Spontaneous ovulation and pregnancy in women with polycystic ovarian disease; a cross sectional study

2018 ◽  
Vol 7 (2) ◽  
pp. 359
Author(s):  
Mostafa A. Sleem ◽  
Ibrahim I. Mohamed ◽  
Mahmoud S. Zakherah ◽  
Ahmed M. Abbas ◽  
Momen A. Kamel
Keyword(s):  
Polycystic Ovary ◽  
Cross Sectional Study ◽  
Reproductive Age ◽  
Sectional Study ◽  
Cross Sectional ◽  
Significant Difference ◽  
The Mean ◽  
The Right ◽  
Study Participants ◽  
Health Hospital

Background: Polycystic ovary disease (PCOD) is the most common endocrine disorder in women of reproductive age, with a prevalence of approximately 5-10%. This study aims to assess the rate of spontaneous ovulation and pregnancy in patients. The present study was a cross sectional study conducted at Woman's Health Hospital, Assiut University, Assiut, Egypt.Methods: The current study was a cross sectional study carried out in Assiut Women's Health Hospital between the 1st October 2016 and 31st July 2017. The patients were selected as infertile patients with PCOD. The patient ages range between 20 and 35 years. The BMI is between 18 and 30 Kg/m2. The main outcome measure was the rate of spontaneous ovulation and spontaneous pregnancy in the 3 cycles.Results: The mean age of the study participants was 26.64±4.59 years and the mean BMI was 24.46±2.62Kg/m2. The sonographic ovarian volume was 12.47±0.69 mm3 for the right ovary and 12.74±0.73 mm3 for the left ovary. No difference in the serum FSH, LH, FSH/LH ratio and prolactin over the 3 consecutive cycles. The rate of spontaneous ovulation in the 3 cycles was 6 women (8.6%) and 2 cases (2.8%) became pregnant spontaneously during the study period. There is no statistical significant difference between ovulating and non-ovulating women according to the BMI and ovarian volume.Conclusions: The present study concluded that the rate of spontaneous ovulation was 8.6% in women with PCOD within 3 cycles with no adverse effects of drugs or surgical interference.

scholarly journals Study on the Length and the Breadths of Tendoachilles of Human Cadaver

2018 ◽  
Vol 17 (3) ◽  
pp. 388-394
Author(s):  
Lutfun Nahar ◽  
Ahmad Seraji ◽  
Soniya Fahmi ◽  
Khandaker Nadia Afreen ◽  
Mahbuba Aktar ◽  
...  
Keyword(s):  
Significant Positive Correlation ◽  
Medical Science ◽  
Cross Sectional ◽  
Male And Female ◽  
Positive Correlation ◽  
Medical College ◽  
Significant Difference ◽  
Human Cadavers ◽  
The Mean ◽  
The Right

Background: Tendoachilles is the chief plantar flexor of the ankle joint. The present study was conducted to find out the possible variations of tendoachilles between the right and the left leg of both male and female.Materials and methods: A cross sectional observational study was conducted in the department of Anatomy, Dhaka Medical College, Dhaka, from July 2013 to June 2014. The data were collected from both the right and the left tendoachilles of 60 human cadavers taken from Anatomy Departments of different Government and Nongovernment Medical Colleges in Dhaka city. Among the 60 cadavers, 30 were male and 30 were female. After dissection, the length of tendoachilles and the breadths at different levels of tendoachilles were measured and recorded.Results: The mean length of tendoachilles was significantly greater in the right than in the left leg of both male and female. The tendoachilles was longer in male than in female in both the right and the left leg (P<0.01). There was significant positive correlation between the height of cadaver and the length of tendoachilles of both the right leg and the left leg in case of male. Positive correlation was also observed between the height of cadaver and the length of tendoachilles of both the legs in case of female, but that was not statistically significant. The mean breadths of tendoachilles were significantly greater in the right leg than in the left leg at its junction with gastrocnemius and at the level of its junction with calcaneus in both male and female and also in male than in female in both legs. Significant difference was observed between the breadth of right and left tendoachilles at the level of 4 cm above its junction with calcaneus in male but not in female (P>0.05).Conclusion: Significantly greater values were observed in the length and in most of the breadths of tendoachilles in the right leg of both sexes and in male in both legs. There was significant positive correlation between the height of cadaver and the length of tendoachilles of both legs in case of male, but, not in female.Bangladesh Journal of Medical Science Vol.17(3) 2018 p.388-394

scholarly journals Evaluation of Mandibular Anatomical Formation for Gender Determination in Turkish Population

2018 ◽  
Vol 22 (3) ◽  
pp. 133-137 ◽  
Author(s):  
Burak Apaydın ◽  
Derya Icoz ◽  
Fusun Yasar ◽  
Faruk Akgunlu
Keyword(s):  
Turkish Population ◽  
Mental Foramen ◽  
Panoramic Radiographs ◽  
Gonial Angle ◽  
Gender Determination ◽  
Significant Difference ◽  
Males And Females ◽  
Inferior Border ◽  
The Right ◽  
Gender Groups

SummaryBackground/Aim: Gender determination is one of the most challenging tasks in medico-legal research and forensic dentistry. Several skeletal components are investigated for this purpose and the mandible is one of them. The mandible has several specific anatomical features. The purpose of this study was to analyze the effects of measurements related to the mental foramen, gonial angle and antegonial angle on gender determination using digital panoramic radiographs.Material and Methods: A retrospective study was planned with 150 digital panoramic radiographs (75 males and 75 females, aged between 20 to 49 years). The radiographs were analyzed by dividing them into two equal gender groups (male and female). Several parameters were compared to determine the gender. The distances from the superior and inferior border of the mental foramen to the basis of the mandible on the right side were measured. Gonial and antegonial angles were evaluated bilaterally. The difference between the males and females were analyzed with independent samples t-test (p<0.05).Results: There was statistically significant difference between the males and females in terms of all the evaluated parameters (p<0.05). The distances related to mental foramen is higher in the males however gonial and antegonial angles are larger in the females.Conclusions: The mental foramen position, gonial and antegonial angles can be used to predict the gender in Turkish population.

scholarly journals An Anatomical Study of the Morphometric Differences between Complete Arcuate Foramina and Ipsilateral Foramina Transversaria in Human Atlas Vertebrae: Could these Be Responsible for Vaso-occlusive Symptoms?

2019 ◽  
Vol 08 (03) ◽  
pp. 106-111
Author(s):  
Monika Lalit ◽  
Anupama Mahajan ◽  
Sanjay Piplani ◽  
Jagdev S. Kullar
Keyword(s):  
Vertebral Artery ◽  
Anatomical Study ◽  
Cross Sectional Area ◽  
Posterior Arch ◽  
Sectional Area ◽  
Cross Sectional ◽  
Significant Difference ◽  
The Mean ◽  
The Difference ◽  
The Right

Abstract Background and Aims Arcuate foramina (AF), the atlas bridges formed by a delicate bony spicule over the posterior arch of atlas, have been implicated in the compression of the vertebral artery during extreme rotation of head and neck movements. Reduction in the size of arcuate foramina as compared with foramen transversarium (FT) is also an important cause for the compression of vertebral artery. Aim of the present study was to determine the morphometric differences between complete AF and ipsilateral foramina transversaria. Materials and Methods Eighty dry adult human atlas vertebrae were obtained in the Department of Anatomy, Government Medical College and Sri Guru Ram Das Institute of Medical Sciences and Research, Amritsar, Punjab, India. Measurements were taken of the maximum dimensions of AF and ipsilateral FT and cross-sectional area was also calculated. Results The following results were obtained.The AF were seen in total 11 (13.75%) vertebrae, 3 (3.75%) on the right side, 6 (7.5%) on left side, and 2 (2.5%) bilateral.• The mean ventrodorsal (AFL) and superoinferior (AFH) diameter of AF was 8.79 mm and 5.98 mm, and 8.11 mm and 5.54 mm on the right and left sides, respectively, and the difference was found to be highly significant.• The mean ventrodorsal (FTL) and mediolateral (FTW) diameter of the FT 8.19 mm and 6.56 mm, and 7.31 mm and 6.86 mm on the right and left sides, respectively, with significant difference on the right side.• The mean cross-sectional area of AF was 41.32 mm2 and 35.38 mm2, and FT was 42.53 mm2 and 39.71 mm2 on the right and left sides, respectively, and AF has smaller area than ipsilateral FT. Conclusions Knowledge about the dimensions and cross-sectional area of the AF and ipsilateral foramina transversaria of the atlas vertebra can improve the success rate of surgeries, thus preventing damage to the adjoining vital structures.

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