Assessment of Gender Dimorphism Using Cephalometry in Iranian Population

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Neda Ghaffari ◽  
Babak Ebrahimi ◽  
Zohreh Nazmara ◽  
Mostafa Nemati ◽  
Masoumeh Dodangeh ◽  
...  

Abstract Cephalic indices is useful for evaluating racial and gender differences. In this study, we aimed to asses Gender Dimorphism Using cephalometry in the Iranian Population. Different variables like cranial length (CL), cranial width (CW), and cranial height (CH) were measured and cranial index (CI), cranial capacity (CC), and brain weight of 400 Iranian volunteers were calculated. Data were analyzed by means of SPSS 22.0. There were significant differences in the mean value of all nasofacial parameters (P<0.05). The highest sensitivity and specificity to predict the gender dimorphism were related to FL and FW (0.990 and 0.97) and (0.970 and 0.94), respectively. Considering the differences between male and female cranial structures, can be useful in forensic medicine and designing neurosurgical and ergonomic instruments in addition, to distinguish and discover the gender of the humans related to the many years ago.

2017 ◽  
Vol 18 (2) ◽  
pp. 152-155
Author(s):  
Ibadullah Kundi

ABSTRACT Introduction The objectives were to see the nasal prominence norm and the gender dimorphism in nasal prominence measured by Holdaway's soft tissue analysis. Materials and methods The sample size was 100 (50 males and 50 females). The subjects included in the study were of Saudi origin with class I skeletal and dental relationship and all teeth present. The age group of the patients was between 18 and 28 years. The radiographs were traced and analyzed by two students and cross-checked by an orthodontist. The nasal prominence was measured according to the technique described by Holdaway. Results The descriptive statistics were calculated for both male and female groups. The mean value of nasal prominence when male and female samples were combined was 14.08 mm. No statistically significant difference was found (p = 0.083) when genders were compared. The level of significance was set at p < 0.05. Conclusion No statistically significant difference was found when genders were compared. The value for males was normal while the value for females was less than Holdaway's normal. Clinical significance These values would aid in treatment planning for orthognathic surgery and orthodontic treatment. How to cite this article Kundi I. Cephalometric Soft Tissue Standard and Gender Dimorphism in Nasal Prominence estimated by Holdaway's Analysis in Patients visiting College of Dentistry, Aljouf University. J Contemp Dent Pract 2017; 18(2):152-155.


1996 ◽  
Vol 75 (05) ◽  
pp. 772-777 ◽  
Author(s):  
Sybille Albrecht ◽  
Matthias Kotzsch ◽  
Gabriele Siegert ◽  
Thomas Luther ◽  
Heinz Großmann ◽  
...  

SummaryThe plasma tissue factor (TF) concentration was correlated to factor VII concentration (FVIIag) and factor VII activity (FVIIc) in 498 healthy volunteers ranging in age from 17 to 64 years. Immunoassays using monoclonal antibodies (mAbs) were developed for the determination of TF and FVIIag in plasma. The mAbs and the test systems were characterized. The mean value of the TF concentration was 172 ± 135 pg/ml. TF showed no age- and gender-related differences. For the total population, FVIIc, determined by a clotting test, was 110 ± 15% and the factor VIlag was 0.77 ± 0.19 μg/ml. FVII activity was significantly increased with age, whereas the concentration demonstrated no correlation to age in this population. FVII concentration is highly correlated with the activity as measured by clotting assay using rabbit thromboplastin. The ratio between FVIIc and FVIIag was not age-dependent, but demonstrated a significant difference between men and women. Between TF and FVII we could not detect a correlation.


Pro Ecclesia ◽  
2021 ◽  
Vol 30 (2) ◽  
pp. 177-215
Author(s):  
Paul Gondreau

Thomas Aquinas offers for his time a novel take on human sexual difference, in that he grounds human sexuality in what we might term a metaphysical biology and accords it a privileged role in the moral life. Though his biology is drawn from Aristotle, which leads Aquinas to make problematic statements on sexual difference, he nonetheless offers a perspective that remains deeply relevant and significant for today. His method or approach of tethering sexual difference first and foremost to our animal-like biological design remains perennial, particularly at a time when many seek to dismiss biology as irrelevant to sexual identity and gender difference. The latest findings of the emerging field of neurobiology, which have uncovered structural differences between the male and female brains, offer key support to Aquinas’s approach. Even more important, he holds, in an unprecedented move, that sexual design and inclination provide a veritable source of moral excellence. He goes so far as to locate the mean of virtue in our sexual design and appetites.


2013 ◽  
Vol 84 (2) ◽  
pp. 246-253 ◽  
Author(s):  
Hui Theng Chong ◽  
Kim Wei Thea ◽  
Joseph Descallar ◽  
Yong Chen ◽  
Oyku Dalci ◽  
...  

ABSTRACT Objective: To compare the esthetic preference of White and Chinese judges with regard to Chinese lip position. Materials and Methods: The profile images of a dental and skeletal Class I Chinese adult male and female were digitally adjusted to Chinese mean values. The lip profile was adjusted with the upper and lower lip at the mean distance from the Ricketts' E-line. These images were used as baseline images and were further digitally manipulated to generate six additional images with the upper and lower lip such that they lay 0.5, 1.0, and 2.0 standard deviations (SDs) in front of or behind the E-line. An additional image was modified based on a White mean value. The images were viewed and ranked by 251 White and Chinese judges (dentists and laypersons) in Australia and China. Results: Significantly more Chinese judges ranked the retrusive profiles higher than the White judges. The White judges also ranked the profile image adjusted to −0.5 SD as the most esthetic for both the female and male, while the Chinese judges ranked the −1.0 SD profile as the most esthetic. Conclusions: The ethnicity of the judges is a significant factor influencing the perception of esthetic lip position. The Chinese judges prefer a more retrusive profile and are more likely to rate a protrusive profile as unacceptable, compared with the White judges.


2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Dilhan İlgüy ◽  
Mehmet İlgüy ◽  
Erdoğan Fişekçioğlu ◽  
Semanur Dölekoğlu ◽  
Nilüfer Ersan

Aim. The aim of the present study was to examine the relationship between articular eminence inclination, height, and thickness of the roof of the glenoid fossa (RGF) according to age and gender and to assess condyle morphology including incidental findings of osseous characteristics associated with osteoarthritis (OA) of the temporomandibular joint (TMJ) using cone beam computed tomography (CBCT).Materials and Methods. CBCT images of 105 patients were evaluated retrospectively. For articular eminence inclination and height, axial views on which the condylar processes were seen with their widest mediolateral extent being used as a reference view for secondary reconstruction. Condyle morphology was categorized both in the sagittal and coronal plane.Results. The mean values of eminence inclination and height of males were higher than those of females (P<0.05). There were significant differences in the RGF thickness in relation to sagittal condyle morphology. Among the group of OA, the mean value of the RGF thickness for “OA-osteophyte” group was the highest (1.59 mm), whereas the lowest RGF values were seen in the “OA-flattening.”Conclusion. The sagittal osteoarthritic changes may have an effect on RGF thickness by mechanical stimulation and changed stress distribution. Gender has a significant effect on eminence height (Eh) and inclination.


Author(s):  
Timipa Richard Ogoun ◽  
Tobia P.S S ◽  
Aye T T

Human body parts are useful in the predictive study of the unknown. The aim of this study is to know the normative values of the canthi of the Ekowe people. Measurements such as inner and outer canthal distances were carried out. The mean value of the innercanthal distance for males and females are 3.55±0.58 and 3.43±0.52. The mean outer canthal distance for male and female is 13.91±0.84 and 13.62±0.76. The canthal index for male and female is 25.59±4.54 and 25.30±4.03. Sexual dimorphism exists and statistical significant difference was noticed in the outer canthal distance between the males and females (P˂0.05). This study has provided us with normative reference values of inner and outer canthal distances and canthal index for the Ekowe Population which is import to the health care givers, Anatomist, ophthalmic industry and anthropologist


2015 ◽  
Vol 10 (2) ◽  
pp. 78-80
Author(s):  
Lubna Shirin ◽  
Humaira Naushaba ◽  
Mohammad Shahjahan Kabir ◽  
SM Niazur Rahman ◽  
Tahmida Yasmin ◽  
...  

The knowledge regarding normal physical measurement of heart is very important for proper diagnosis and management of various cardiac diseases. Heart disease is a predominant cause of disability and death among all industrialized nations. This study is to establish a standard data of different external parameters of heart of adult Bangladeshi population. The study was conducted at Department of Anatomy, Sir Salimullah Medical College, Dhaka from July 2009 to December 2009. The formalin fixed cadaveric 60 (sixty) (n=60) human hearts, 41 (forty one) male and 19 (nineteen) female were taken. The length, breadth and weight of the heart were measured and the data was analyzed statistically. The mean value of the length of the heart in male was 10.35±0.62 cm and female was 10.22±0.90 cm. The mean value of the breadth of the heart was 7.45±0.73 cm and 7.35±0.65 cm in male and female respectively. The mean value of the weight of the heart was 174.15±15.49 gm in male, where as for female the mean was 171.58±19.16 gm. The comparison of values of above mentioned variables between male and female were done by unpaired students test and it was statistically not significant.University Heart Journal Vol. 10, No. 2, July 2014; 78-80


2017 ◽  
Vol 24 (12) ◽  
pp. 1894-1898
Author(s):  
Shahid Ali Mirani ◽  
Syed Yousif Ali Shah ◽  
Muhammad Ameen Sahito

Objectives: This study was carried out to evaluate the dental students’perception about condition of their gums and teeth and prevalence of dental caries. StudyDesign: Descriptive cross sectional study. Setting: Liaquat University of Medical and HealthSciences. Period: July 2011 to December 2011. Material and Method: The sample size was200 students comprising of both male and female. Clinical Oral examination was performedwith the help of mouth mirror and explorer in dental chair. The perception of dental studentsabout condition of their gums and teeth was obtained through questionnaire. Results: Theresults revealed that 25 % of students in present study had dental decay. The mean DMFT scorewas 0.625. Moreover, the mean DMFT score for male and female students was 0.658 and 0.576respectively. The results about distribution of DMFT components indicated that the decayed(D) teeth were in greatest number followed by filled (F) and missed (M) teeth. Conclusion:There was statistically no significant association between dental caries and gender. Moreover,prevalence of dental caries was significantly different between those who perceived their gumsand teeth condition excellent and good compared to the students who perceived their gumsand teeth condition as poor.


Author(s):  
Olatunji-akioye A ◽  
Ojiaka H N ◽  
Samuel E. S

<p><strong>Objective: </strong>Domestication of the Cane rats is on-going globally and might replace the conventional rodents used in biomedical research in future. However, the paucity of information on adequate anaesthesia vis-a-vis xylazine-ketamine drug combination in the male and female Cane rats warranted this study.</p><p><strong>Methods: </strong>Six adult Cane rats {1.8±0.7 kg body weights (bwt.)} assigned into group A (Female) and group B (Male) of three rats each was used for the study. Each animal was premedicated with atropine sulphate (0.05 mg/kg bwt), and later administered xylazine (10 mg/kg bwt) and ketamine (100 mg/kg bwt) intramuscularly. Meanwhile, anaesthetic characteristics and physiologic indices of anaesthesia were monitored.</p><p><strong>Results: </strong>Results obtained showed that the physiologic indices; open eyelids, smooth induction and recovery, skeletal muscle relaxation and somatic analgesia were observed in all the animals, however, the anaesthetic indices; time to induction, time to standing, duration of analgesia and duration of recumbency showed marked sex variations. The mean values for the duration of analgesia and recumbency were significantly elevated (P&lt;0.05) in group B as compared with group A. Similar trend was seen for time to standing, but, it was non-significant (P&gt;005). However, time to induction mean value for group A was non-significantly increased (P&gt;005) when compared with group B. The heart rate, respiratory rate and rectal temperature mean values decreased in both groups non-significantly (P&gt;0.05).<strong></strong></p><p><strong>Conclusion: </strong>Conclusively, the xylazine-ketamine combination produced anaesthesia in Cane rat and the combination is more tolerated in the male Cane rats than the female Cane rats.</p>


Author(s):  
Philippe Poullain ◽  
Mircea Barnaure ◽  
Stéphanie Bonnet

Earthen composites (rammed earth, cob, adobe, daub, CEB...) are experiencing renewed interest from builders due to the many advantages of these building materials, and in particular their eco-friendliness. Nevertheless, the widespreading of these materials, as certified materials and conforming to construction standards, comes against the lack of data concerning their mechanical properties. Indeed, the literature generally gives the average values of the properties without indicating the number of specimens tested neither the distribution of the data. Yet, the mean value of the compressive strength is not enough to assess the reliability of a given earthen composite to build a wall and it would be better to indicate the value of a defined percentile (characteristic value just like with concrete composites). The aim of this paper is to analyze the data about the mechanical properties (tensile and compressive strength) obtained on different formulations of cob including natural fibres or not. The tests performed allowed to determine the probability density function and the average values, the standard deviation and the percentiles, for the various properties.


Sign in / Sign up

Export Citation Format

Share Document