scholarly journals MANDIBULAR CANINE INDEX (MCI)

2010 ◽  
Vol 17 (03) ◽  
pp. 459-463
Author(s):  
IRFAN AHMED MUGHAL ◽  
ANWAR SAOOD SAQIB ◽  
FARIDA MANZUR
Keyword(s):  
Medical College ◽  
Significant Difference ◽  
Males And Females ◽  
Mandibular Canine ◽  
Student’S T ◽  
Dental Evidence ◽  
Aseptic Conditions ◽  
Sexual Identification ◽  
The Right ◽  
Mass Disasters

Introduction: Dental evidence is valuable in identification of individuals, especially following mass disasters; estimation of age at death of skeletonised remains and establishing guilt in cases of criminal injury by biting. Mandibular canines are found to exhibit the greatest sexual dimorphism amongst all teeth. Objective: To investigate the accuracy with which gender can be differentiated by using the mandibular canine index in the Punjabi – Pakistani population. Setting: Independent Medical College and Punjab Medical College,  aisalabad. Period: Dec. 2008 to Dec. 2009. Material and Methods: The present study was performed on 200 students, between the age group of 18-25 years, randomly sampled with informed consent (Through 3rd party). Mandibular canine width and intercanine distance were measured with the help of Vernier caliper after observing aseptic conditions. Mandibular canine index was calculated and the observed MCI was compared with the standard MCI value. The data was then analyzed using student’s “t” test. Results: No significant statistical difference was noted between the right and left mandibular canines amongst males and females (same sex) but when comparing between males and females, there was highly statistical significant difference (P < 0.001). The calculated standard MCI for canines of males and females found to be 0.2504. With these calculations we could predict sex correctly at 75.97% in this study (Male: 71.67% and Female: 78.72%). Conclusion: MCI is a quick and reliable method for sexual identification when a standard for the population is available. With these calculations, we could predict the sex correctly at 75.97 % in this study. This method can be used as adjunct to other available tools for sex determination. DNA studies can reveal sex accurately.Availability of comprehensive database with “NADRA” can also be used as adjunct to “MCI” to enhance the accuracy in determination of sex and identity of the person in Pakistan.

Role of maxillary and mandibular canine indices in sex determination: Perspective of a forensic odontologist

2014 ◽  
Vol 6 (2) ◽  
pp. 68-71
Author(s):  
RC Pramod ◽  
Nupura Vibuthe ◽  
KV Suresh ◽  
Sharan J Shetty ◽  
Neha Shetty
Keyword(s):  
Sex Determination ◽  
Reliable Method ◽  
Indian Population ◽  
Age Group ◽  
Maxillary Canine ◽  
Mandibular Canine ◽  
Dental Evidence ◽  
Sexual Identification ◽  
Mass Disasters

Abstract Introduction Dental evidence is valuable in identification of individuals, especially following mass disasters. Canines are found to exhibit the greatest sexual dimorphism amongst all teeth. Objective To investigate the accuracy with which gender can be differentiated by using the maxillary and mandibular canine indices in an Indian population. Material and Methods The present study was performed on 200 subjects (100 males, 100females) between the age group of 18-25 years, randomly sampled with informed consent (Through 3rd party). Results Males showed greater mean mesiodistal dimensions for each tooth in comparison to females in both maxillary and mandibular arches. When the level of accuracy for sex determination was measured using maxillary canine index it was found that 55% females and 60% males were classified correctly. The level of accuracy for sex determination using mandibular canine index found 67% females and 78% males were classified correctly. Conclusion canine indices are a quick and reliable method for sexual identification when a standard for the population is available. With these calculations, we could predict the sex correctly at 72.5% and 57.5 % in this study for mandibular and maxillary canine indices respectively. This method can be used as adjunct to other available tools for sex How to cite this article Pramod RC, Nupura V, Suresh KV, Vidya K, Sharan JS, Neha S. Role of maxillary and mandibular canine indices in sex determination: Perspective of a forensic odontologist. CODS J Dent 2014;6;68-71

scholarly journals Craniometric study of the Orbital Index in brazilian skulls

2021 ◽  
Vol 69 ◽  
Author(s):  
Larissa Chaves Cardoso FERNANDES ◽  
Patrícia Moreira RABELLO ◽  
Bianca Marques SANTIAGO ◽  
Marcus Vitor Diniz de CARVALHO ◽  
Manoel Raimundo de SENA JÚNIOR ◽  
...  
Keyword(s):  
Mixed Race ◽  
Cross Sectional Study ◽  
Southeastern Brazil ◽  
Cross Sectional ◽  
Significance Level ◽  
Brazilian Sample ◽  
Significant Difference ◽  
Student’S T ◽  
The Right ◽  
Student’S T Test

ABSTRACT Objetive To determine the percentage of correctness of the Orbital Index (OI) for estimation of sex, ancestry and age in Brazilian skulls. Methods Cross-sectional study of 183 human dry skulls from the southeastern Brazil. A total of 100 skeletons were males and 83 females; of which 36 were aged up to 39 years, 60 aged between 40 and 59 years, and 87 aged 60 years or older. As for ancestry, 103 were from white, 51 mixed race, and 29 black individuals. The OI was calculate by the formula = height/width x 100. The data were submitted to Student’s t test, F (ANOVA), Tukey and Kruskal Wallis tests as well as to discriminant analysis, with a 5% significance level. Results The sample was characterized as mesoseme, with a mean age of 56.62 (±19.97) years. No significant difference was observed (p=0.511) between the OI in females (right: 86.43 ± 6.58 and left: 86.70 ± 5.93) and males (right: 85.78 ± 6.69 and left: 86.37 ± 6.20). There were no significant differences between age, ancestry and the variables analyzed (p>0.05). The right and left orbital widths were significantly dimorphic between sexes (p<0.001). The percentage of correctness of the method for estimation of sex, age and ancestry was found to be 65.6%, 43.7%, and 43.6%, respectively. Conclusions The OI is not an appropriate method for estimation of sex, ancestry and estimation of age in this Brazilian sample. The methodology should be expanded to other population groups so that it can be improved.

scholarly journals OSTEOMETRIC ESTIMATION OF SEX FROM MASTOID TRIANGLE IN MALAYSIAN POPULATION

2019 ◽  
pp. 348
Author(s):  
ABDELNASSER IBRAHIM ◽  
ASPALILAH ALIAS ◽  
MOHAMED SWARHIB SHAFIE ◽  
SRIJIT DAS ◽  
FARIDAH MOHD NOR
Keyword(s):  
Classification Accuracy ◽  
T Test ◽  
Stepwise Discriminant Analysis ◽  
Malaysian Population ◽  
Significant Difference ◽  
Males And Females ◽  
Best Parameter ◽  
New Equation ◽  
The Right ◽  
Base Of The Skull

Objective: Determination of sex is one of the most important parameters for conducting biological profile of unknown skeletal remains in anatomical anthropology and forensic medicine. Mastoid bone is useful for the identification of sex, as it is the most protected bone and is resistant to damage, due to its anatomical position at the base of the skull. The aim of this study was to develop new equation for the estimation of sex from mastoid triangle in the Malaysian population. Methods: About 10 parameters were studied on 388 computed tomography scans of crania in 231 males and 157 females. The parameters comprised three sides of mastoid triangle, its perimeter and area on both sides. T-test was used to compare between the right and left sides and between males and females. Stepwise discriminant function was used to reveal the best discriminatory parameter and its classification accuracy. Results: Comparison of means by T-test revealed no difference between the right and left sides in both sexes. T-test showed a significant difference between males and females for all parameters. Perimeter of mastoid triangle was found to be the best parameter by stepwise discriminant analysis. The equation based on perimeter of mastoid triangle was developed with 84.4% classification accuracy. Conclusion: The developed equation could be used to assess sexual dimorphism of fragmented Malaysian crania with intact mastoid region. The achieved cross-validated classification was relatively high compared to that in other previous studies.

scholarly journals Assessment of first molars sagittal and rotational position in Class II, division 1 malocclusion

2013 ◽  
Vol 18 (6) ◽  
pp. 106-111 ◽  
Author(s):  
Paulo Estevão Scanavini ◽  
Renata Pilli Jóias ◽  
Maria Helena Ferreira Vasconcelos ◽  
Marco Antonio Scanavini ◽  
Luiz Renato Paranhos
Keyword(s):  
Class Ii ◽  
Chi Square ◽  
Mean Values ◽  
Significance Level ◽  
Significant Difference ◽  
Division 1 ◽  
Chi Square Test ◽  
Student’S T ◽  
The Right ◽  
Class Ii Division 1

OBJECTIVE: This study assessed the anterior-posterior positioning of the upper and lower first molars, and the degree of rotation of the upper first molars in individuals with Class II, division 1, malocclusion. METHODS: Asymmetry I, an accurate device, was used to assess sixty sets of dental casts from 27 females and 33 males, aged between 12 and 21 years old, with bilateral Class II, division 1. The sagittal position of the molars was determined by positioning the casts onto the device, considering the midpalatal suture as a symmetry reference, and then measuring the distance between the mesial marginal ridge of the most distal molar and the mesial marginal ridge of its counterpart. With regard to the degree of rotation of the upper molar, the distance between landmarks on the mesial marginal ridge was measured. Chi-square test with a 5% significance level was used to verify the variation in molars position. Student's t test at 5% significance was used for statistical analysis. RESULTS: A great number of lower molars mesially positioned was registered, and the comparison between the right and left sides also demonstrated a higher number of mesially positioned molars on the right side of both arches. The average rotation of the molars was found to be 0.76 mm and 0.93 mm for the right and left sides, respectively. CONCLUSION: No statistically significant difference was detected between the mean values of molars mesialization regardless of the side and arch. Molars rotation, measured in millimeters, represented ¼ of Class II.

Radiological observations on the olfactory fossa and ethmoid roof

2010 ◽  
Vol 124 (12) ◽  
pp. 1251-1256 ◽  
Author(s):  
S Elwany ◽  
A Medanni ◽  
M Eid ◽  
A Aly ◽  
A El-Daly ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Multislice Computed Tomography ◽  
Cribriform Plate ◽  
Type I ◽  
Adult Males ◽  
Significant Difference ◽  
Computed Tomography Scans ◽  
Operative Evaluation ◽  
Males And Females ◽  
The Right

AbstractObjective:To establish normative dimensions for the depth of the olfactory fossa, the length and angulation of the lateral lamella of the cribriform plate, and the height of the ethmoid roof, in adult males and females.Design:The study assessed 300 high resolution, multislice computed tomography scans of the paranasal sinuses, which were evaluated using Merge Efilm software (version 2.0.0, build 37).Results:According to the original Keros classification, the type II olfactory fossa was the commonest type in men (66.7 per cent), while the type I fossa was commonest in women (53 per cent). A difference of 3 mm or more between the depths of the right and left olfactory fossae was present in 11 per cent of men and 2 per cent of women. The lateral lamella of the cribriform plate was significantly shorter and less oblique in men than in women. The length of the lateral lamella was greater anteriorly than posteriorly in both sexes. There was a statistically significant difference between the angle of the lateral lamellae, comparing right and left sides. The ethmoid roof was lower in women than men.Conclusion:The observed differences between men and women and between the right and left sides are of surgical importance, and should alert surgeons to the need for thorough, systematic pre-operative evaluation of computed tomography scans.

scholarly journals ELASTOGRAPHIC ANALYSIS OF THE SUPRASPINATUS TENDON IN DIFFERENT AGE GROUPS

2020 ◽  
Vol 28 (4) ◽  
pp. 190-194
Author(s):  
César Rubens da Costa Fontenelle ◽  
Márcio Schiefer ◽  
Pietro Mannarino ◽  
Isac Borges Lacerda ◽  
Francisco José Thomé Machado ◽  
...  
Keyword(s):  
Shear Modulus ◽  
Age Groups ◽  
Supraspinatus Tendon ◽  
Level Of Evidence ◽  
Mean Values ◽  
Age Progression ◽  
Normality Test ◽  
Significant Difference ◽  
Student’S T ◽  
The Right

ABSTRACT Objective: To compare the mechanical properties of the supraspinatus tendon in different age groups using Supersonic Shearwave Imaging (SSI) elastography. Methods: We evaluated 38 healthy individuals of both genders, 20 being in the range of 20 to 35 years and 18 being over 60 years. The shear modulus of the supraspinatus tendon was measured by SSI elastography, always on the right side. Means between age groups were compared and statistically analyzed using the Shapiro-Wilk normality test followed by the student’s t-test and were established as a statistically significant value of p ≤ 0.05. Results: A statistically significant difference was observed when the mean values of the shear modulus of the supraspinatus tendon of young adults (23.98 ± 9.94 KpA) were compared with those of older adults (17.92 ± 6.17 KpA). Conclusion: We found a difference between the means of the shear modulus measured by the SSI elastography, showing a significant decrease of the shear modulus with the chronological age progression. Level of Evidence III, Diagnostic Studies - Investigating a Diagnostic Test.

scholarly journals Pattern of superficial venous arrangement in cubital fossa among preclinical Nepalese MBBS students at Birat Medical College Teaching Hospital

2021 ◽  
Vol 12 (10) ◽  
pp. 152-156
Author(s):  
Sanjib Kumar Sah ◽  
Sidarth Timsinha ◽  
Raju Kumar Chaudhary ◽  
Rajesh Kumar Shah ◽  
Umesh Kumar Mehta
Keyword(s):  
College Teaching ◽  
Venous Access ◽  
Cross Sectional Study ◽  
Type I ◽  
Cross Sectional ◽  
Medical College ◽  
Significant Difference ◽  
Reconstructive Microsurgery ◽  
Cubital Fossa ◽  
The Right

Background: The superficial veins of the cubital fossa are frequently variable in existence and arrangement. Many clinical procedures, such as reconstructive microsurgery and arterial bypass surgery, as well as intravenous injections or therapy, require the use of superficial veins. Aims and Objective: The aim of the study was to observe and describe the variations in anatomical distribution of the superficial veins of the cubital fossa in Nepalese pre-clinical medical students. Materials and Methods: The cross-sectional study included a total of 98 students between 18 to 24 years of age. A total of 196 anterior aspects of both arms were examined for cubital venous pattern. A tourniquet was applied at the mid-arm and drawing of the pattern of veins was made on a separate unglazed paper. The venous patterns in the cubital fossa were then categorized based on their gender. Results: Six patterns of superficial veins of the cubital fossa were observed. The commonest pattern in both genders was type I pattern. No statistical significant difference was observed between patterns of superficial veins on the right and left cubital fossa (P = 0.728 and 0.825 respectively) in both male and female subjects. Conclusion: Our research showed six venous patterns of superficial veins at the cubital fossa in Nepalese population. Understanding the common anatomy, patterns and variations of superficial vein anastomosis is imperative as this knowledge would help those needing venous access for various medical procedures.

scholarly journals A postmortem study on the volume of the human kidney

2015 ◽  
Vol 23 (1) ◽  
pp. 73-77
Author(s):  
Fatema Johora ◽  
Abu Sadat Mohammad Nurunnabi ◽  
Dilruba Siddiqua ◽  
Hasna Hena ◽  
Shamim Ara
Keyword(s):  
Left Kidney ◽  
Age Groups ◽  
Human Kidney ◽  
Kidney Volume ◽  
Kidney Size ◽  
Cross Sectional ◽  
Medical College ◽  
Age Related ◽  
Significant Difference ◽  
The Right

Context: Kidney volume is a sensitive index of kidney size for the detection of renal abnormalities. It is also excellent predictor of renal function and correlates very well with body indexes. The present study was done on cadaveric specimens to see the age related changes in the volume of the kidney in a Bangladeshi population and to compare with the previous local and foreign studies. Methods: This cross-sectional, descriptive study was done in the Department of Anatomy, Dhaka Medical College, Dhaka, from July 2008 to June 2009, based on collection of 140 post mortem human kidneys from 70 unclaimed dead bodies which were in the morgue under examination in the Department of Forensic Medicine, Dhaka Medical College, Dhaka. All the samples were divided into three age groups including A (10-19 years), B (20-39 years) and C (40-59 years). The length, breadth and thickness of each kidney were measured by using a slide calipers and recorded. Then the volume was determined by using prolate ellipsoid formula i.e. length × breadth × thickness × 0.52. Results: The volume of the right and left kidneys were found 54.46±4.02 cm3 and 53.15±1.98 cm3 in group A, 78.31±10.41 cm3 and 75.90±8.32 cm3 in group B, 74.47±6.22 cm3 and 73.34±6.80 cm3 in group C. No statistically significant difference was found between the right and the left kidney in any group. However, statistically significant differences were evident between A & B and A & C (P<0.001). Conclusion: No difference was found in volume between the right and the left kidney in any group. However, kidney volume was found to increase with advancing age in apparently healthy Bangladeshi people. DOI: http://dx.doi.org/10.3329/jdmc.v23i1.22698 J Dhaka Medical College, Vol. 23, No.1, April, 2014, Page 73-77

scholarly journals Does Performance of Speed-Accuracy Movements Depend on Gender and the Left or the Right Hand?

2018 ◽  
Vol 2 (77) ◽  
Author(s):  
Kristina Motiejūnaitė ◽  
Dalia Mickevičienė ◽  
Albertas Skurvydas ◽  
Diana Karanauskienė ◽  
Mantas Mickevičius
Keyword(s):  
Reaction Time ◽  
Movement Speed ◽  
Movement Trajectory ◽  
Dynamic Parameters ◽  
Left Hand ◽  
Right Hand ◽  
Significant Difference ◽  
Males And Females ◽  
The Right ◽  
Speed Accuracy

The aim of the study was to establish the differences in men and women’s performance of speed-accuracy movements with their left (LH) and right (RH) hands. The research participants were 24 healthy right-handed subjects: 12 males (aged 20.8 ± 1.1 years) and 12 females (aged 21.4 ± 1.0 years). The research was carried out in the Laboratory of Human Motor Control at the Lithuanian Academy of Physical Education (LAPE) applying the analyzer of dynamic parameters of human leg and arm movement (DPA-1; Patent No. 5251; 2005 08 25), which is used for the qualitative estimation of the dynamic parameters of one arm and leg target movement, two arms and legs coordinated and independent target movements, when the resistance power and target are coded with different programmable parameters. The task was performed with the right and then with the left hand (50 repetitions with each hand). The subjects had two tasks: a) to react as quickly as possible (simple task); b) to react as quickly as possible and to hit the target on a computer screen quickly and accurately (complicated task). We registered the maximal and mean movement speed, reaction time, movement trajectory and intraindividual variability of the right and the left hands. Conclusions. There was no significant difference in accuracy between female and male subjects, thought female subjects performed speed-accuracy task more slowly than men. Both males and females performed the speed-accuracy task with their right hand faster and more accurately than with their left hand. Performing movements with different hands the indices of reaction time did not differ significantly. Both males and females performed movements with their right and left hands with the same intraindividual variability.Keywords: movement control, reaction time, speed-accuracy task, right and left hand, gender. 

Pseudoneglect of Males and Females on a Spatial Short-Term Memory Task

1997 ◽  
Vol 84 (1) ◽  
pp. 99-105 ◽  
Author(s):  
Erhan Nalçaci ◽  
Metehan Çiçek ◽  
Canan Kalaycioglu ◽  
Sema Yavuzer
Keyword(s):  
Short Term Memory ◽  
Memory Task ◽  
Indirect Evidence ◽  
Spatial Task ◽  
Strongly Correlated ◽  
Short Term ◽  
Significant Difference ◽  
Males And Females ◽  
The Right ◽  
The Brain

The effect of sex on the phenomenon of pseudoneglect was assessed in 60 male and 61 female right-handed subjects using a modified form of Corsi's block-tapping test. A significant right-lateralized pseudoneglect for both sexes was found, and the level of pseudoneglect strongly correlated with neglect in the right hemispace. Men were significantly more accurate in the left hemispace than women, whereas no difference was seen between the sexes in the right hemispace. Although we found some indirect evidence from which to infer that the men's brain may be functionally more lateralized than the women's for this spatial task, there was no significant difference between the sexes in correct responses for the left hemispace, i.e., right pseudoneglect. Therefore, the results suggest that pseudoneglect phenomenon can be partly explained by a functional asymmetric feature of the brain, and the other factors probably play a role in producing the similar patterns of asymmetric perception of space in males and females.

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