scholarly journals Mandibular and maxillary canine as a tool for sex determination

2017 ◽  
Vol 34 (04) ◽  
pp. 247-250
Author(s):  
K. Mohsenpour ◽  
M. Gangadhar ◽  
S. Samehsalari
Keyword(s):  
Sexual Dimorphism ◽  
Sex Determination ◽  
Natural Disaster ◽  
Resistance To Change ◽  
T Test ◽  
Iranian Population ◽  
Age Group ◽  
Sex Dimorphism ◽  
Maxillary Canine ◽  
Maximum Resistance

Abstract Introduction: Teeth measurement assist in the forensic and anthropological investigation to estimate age, confirm sex and race of a person. Maximum resistance to change in a natural disaster and also the most level of sexual dimorphism in canines makes them important in mentioned fields. Materials and Methods: During this study, an effort has been created to determine the sex of a person by using Canine Index (CI) which calculated for mandibular and maxillary canines. Mesio-distal (MD) breadth of canines and also the respective inter-canine distances (ICD) were tested using the independent samples t-test revealed significant sex dimorphism among the 100 individuals (50 males and 50 females) of Iranian population in the age group of 18-35 years. Conclusion: It is evident from our study that the maxillary canine index (MaxCI) is a valuable tool for determining sex.

scholarly journals A Comparative Study of the Canine Tooth as a Tool in Gender Determination in Nigerian Population

2019 ◽  
Vol 26 (2) ◽  
Author(s):  
Peter O Otuaga ◽  
Lilian Ebite Chris-Ozoko ◽  
Oghenetega Lynda Sakpoba ◽  
John Chukwuma Oyem
Keyword(s):  
Sexual Dimorphism ◽  
Sex Determination ◽  
Canine Tooth ◽  
Maxillary Canine ◽  
Male And Female ◽  
Study Results ◽  
Significant Difference ◽  
Nigerian Population ◽  
Reversed Sexual Dimorphism ◽  
Dental Evidence

Dental evidence has been demonstrated as a major forensic tool for the identification of individuals and sex determination. The objective of the research was to determine sex in Delta Ibo ethnic group of Nigeria using the mandibular and maxillary canine teeth. Materials and methods. The study comprised 201 (100 males and 101 females) subjects of Delta Ibo ethnicity at the age of 17 – 25 years. The mesiodistal crown width and intercanine distance of both the maxillary and mandibular canines were measured intraorally using a pair of dividers and a ruler. Unpaired T-test at a probability value of p<0.05 was used to ascertain the mean significant differences between the male and female canine indices.   Results. Study results showed a statistically significant difference between male and female mandibular and maxillary canine mesiodistal width. This implied a sexual and reversed sexual dimorphism in the studied population.        Conclusions. The study confirmed that the canines of Delta Ibos exhibit sexual dimorphism like other populations and the maxillary canine indices give the most accurate prediction in sex determination.

scholarly journals Maxillary sinus - A tool for sex determination in the Nepalese population

2019 ◽  
Vol 8 (2) ◽  
pp. 87-91
Author(s):  
Pankaj Kumar Singh ◽  
Ram Chandra Paudel ◽  
Ritesh G Menezes ◽  
Kishor Khanal
Keyword(s):  
Sexual Dimorphism ◽  
Sex Determination ◽  
Maxillary Sinus ◽  
Population Sample ◽  
Rare Event ◽  
T Test ◽  
Male And Female ◽  
Significant Difference ◽  
Left Maxillary Sinus ◽  
Paired T Test

Background: In forensic science, skeletal examination is often done with primary focus on identification. Complete identification is a rare event in this type of examination. However, anthropological identification can be done in skeletal examination. Skull is the second best for determination of sex next to pelvis. Maxillary sinuses are paranasal sinuses, and a feature for sexual dimorphism which remains intact in partially charred. The study of maxillary sinus is best done on Computed Tomography.Objectives: The primary objective of this study is to evaluate bilateral maxillary sinus for sexual dimorphism using Computed Tomography.Methodology: A total of 104 CT head cases were studied of which 52 were male and 52 female. The anterior posterior length, transverse width and height of bilateral maxillary sinus were measured in male and female through their DICOM images using inbuilt electronic calliper. Descriptive analysis for mean, paired t test to compare right and left maxillary sinus in both male and female, and student t test for compare male and female were used for analysing the value measured and calculated.Results: Male maxillary sinus (Right 12.76±4.62 & Left 12.39±3.81) was found be to larger than that of female (Right 12.16±4.78 & Left 11.80±4.49). Right and left maxillary sinus of both the sexes showed no significant difference when paired t test was used. Using independent t-test showed no sexual dimorphism between the two sexes.Conclusion: Maxillary sinus is not good tool for sex determination in Nepalese population. However further studies could be done on larger population sample, as smaller sample size could be the limitation of this study.

scholarly journals Odontometric analysis of molars for sex determination

2016 ◽  
Vol 15 (1) ◽  
pp. 35 ◽  
Author(s):  
Larissa Chaves Cardoso Fernandes ◽  
Carolina Vieira Lucena Veloso ◽  
Julyana de Araújo Oliveira ◽  
Paloma Rodrigues Genu ◽  
Bianca Marques Santiago ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Sex Determination ◽  
Dental Students ◽  
Sex Dimorphism ◽  
Cross Sectional ◽  
Permanent Molars ◽  
Left And Right ◽  
Student’S T ◽  
Plaster Casts ◽  
Student’S T Test

Aim: To investigate the existence of sexual dimorphism between the first and second permanent molars. Methods: A cross-sectional, observational, blind study using comparative and statistical descriptive procedures. The sample included 50 pairs of plaster casts from undergraduate dental students (25 men/25 women) from the Federal University of Paraíba, João Pessoa/PB, Brazil, aged 20-26 years. Odontometric measurements of first and second maxillary/mandibular, right/left permanent molars were performed. Mesiodistal (MD) and buccolingual/palatal (BL/BP) widths and the distance between the lingual cusps of corresponding molars in opposite quadrants, were measured. The data were analyzed by Student’s t test and ANOVA with Bonferroni (p≤0.05). Results: The crowns of all first molars were statistically larger in men than in women (p<0.05). Maxillary and mandibular left second molars (#27 and #37) did not differ in their MD widths (p=0.66, p=0.75), whereas mandibular left and right second molars (#37 and #47) showed statistically different BL widths (p=0.007 and p=0.008). As to the distance between the lingual cusps, only the first left-to-right mandibular molars (#36-46) showed no sex dimorphism (p=0.107). Conclusions: Molars are larger in males than in females. Individually, first molars demonstrated higher evidence of sex distinction than second molars.

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

Sexual Dimorphism among the Kathmandu University Students Assessed by Anthropometric Studies

2018 ◽  
Vol 9 (05) ◽  
pp. 20469-20472
Author(s):  
Shakya R ◽  
Bhattacharya SC ◽  
Shrestha R
Keyword(s):  
Young Adults ◽  
Sexual Dimorphism ◽  
Young Adult ◽  
University Students ◽  
Plastic Surgery ◽  
Age Group ◽  
Adult Age ◽  
Clinically Normal ◽  
Crime Detection ◽  
Males And Females

Objectives: To observe the sexual dimorphism among the young adult age group ranging from 18-21 years, of Kathmandu University students by measuring craniofacial circumference and canthal distances. Rationale of the study: These data could be useful for establishing the craniofacial standards and adds an implementation on plastic surgery, crime detection as well as in the industrial field. Method: 300 clinically normal students of Kathmandu University aged between 18-21 years were examined for the study. Fronto-occipital circumference, outer and inner canthal distances were measured. All the parameters were compared between males and females. Result: The cranial circumference as well as the inner and outer canthal distance in males was found to be significantly higher as compared to the females. Conclusion: The results concluded that sexual dimorphism remarkably exists in young adults of Kathmandu University students.

scholarly journals Integrative genomics reveals paths to sex dimorphism in Salix purpurea L

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Brennan Hyden ◽  
Craig H. Carlson ◽  
Fred E. Gouker ◽  
Jeremy Schmutz ◽  
Kerrie Barry ◽  
...  
Keyword(s):  
Gene Expression ◽  
Sex Determination ◽  
Bisulfite Sequencing ◽  
Epigenetic Modification ◽  
Small Rna Sequencing ◽  
Regulation Of Transcription ◽  
Eqtl Analysis ◽  
Sex Dimorphism ◽  
Network Analyses ◽  
Salix Purpurea

AbstractSex dimorphism and gene expression were studied in developing catkins in 159 F2 individuals from the bioenergy crop Salix purpurea, and potential mechanisms and pathways for regulating sex development were explored. Differential expression, eQTL, bisulfite sequencing, and network analysis were used to characterize sex dimorphism, detect candidate master regulator genes, and identify pathways through which the sex determination region (SDR) may mediate sex dimorphism. Eleven genes are presented as candidates for master regulators of sex, supported by gene expression and network analyses. These include genes putatively involved in hormone signaling, epigenetic modification, and regulation of transcription. eQTL analysis revealed a suite of transcription factors and genes involved in secondary metabolism and floral development that were predicted to be under direct control of the sex determination region. Furthermore, data from bisulfite sequencing and small RNA sequencing revealed strong differences in expression between males and females that would implicate both of these processes in sex dimorphism pathways. These data indicate that the mechanism of sex determination in Salix purpurea is likely different from that observed in the related genus Populus. This further demonstrates the dynamic nature of SDRs in plants, which involves a multitude of mechanisms of sex determination and a high rate of turnover.

scholarly journals Gender Determination by Linear Dimension of Permanent Canine: An Odontometric Analysis

2014 ◽  
Vol 2 (1) ◽  
pp. 23-27
Author(s):  
B Sharma ◽  
N Balaji ◽  
MK Sumathi
Keyword(s):  
Sexual Dimorphism ◽  
Sex Determination ◽  
Linear Dimension ◽  
Medical Sciences ◽  
Medical College ◽  
Type Iv ◽  
Racial Background ◽  
Significant Difference ◽  
Natural Change ◽  
The Individual

Background and objectives: Identification, an aspect of forensic anthropology, is the recognition of an individual based on the physical characteristics unique to the individual. Among the four main attributes i.e. gender, age, stature and ethnic or racial background of an individual’s biological identity, sex determination is usually the first step in the human identification process. Teeth can be used as a means of sex determination as teeth are resistant to post-mortem degradation and survive deliberate, accidental or natural change. This study was carried out with an objective to determine the sexual dimorphism of maxillary and mandibular canine by linear tooth diameter for permanent dentition in Moradabad population. Material and Methods: A total number of 40 subjects (20 Males and 20 Females) were included in this study. After obtaining an informed written consent, alginate impression was taken with help of perforated impression trays and study models were prepared with type IV dental stone. Linear (MD, BL, Crown Height) were taken with digital vernier caliper. Results: It was observed that males’ shows more mean linear crown diameter as compared to females. Also, the mesiodistal and buccolingual measurement shows statistically significant difference for all canines, being higher for males than females. Conclusion: The present study has expressed sexual dimorphism of permanent canine using Student’s test and indicate that linear dimension of maxillary canine can be used for sexual diamorphism with accuracy along with other accepted procedure for sex determination. DOI: http://dx.doi.org/10.3126/jmcjms.v2i1.11392   Janaki Medical College Journal of Medical Sciences (2014) Vol. 2 (1): 23-27

Preference on prenatal sex determination and its associated factors among currently married women of reproductive age group in Puducherry, India

2021 ◽  
Vol 28 (1) ◽  
pp. 51
Author(s):  
GaneshKumar Saya ◽  
KariyarathCheriyath Premarajan ◽  
Gautam Roy ◽  
Sonali Sarkar ◽  
SitanshuSekhar Kar ◽  
...  
Keyword(s):  
Sex Determination ◽  
Associated Factors ◽  
Married Women ◽  
Reproductive Age ◽  
Age Group ◽  
Women Of Reproductive Age ◽  
Reproductive Age Group

Comparative assessment of odontometric parameters for gender determination: A hospital based cross-sectional study

2021 ◽  
Vol 8 (3) ◽  
pp. 147-152
Author(s):  
Mosmi Lomi ◽  
Jonathan Daniel M
Keyword(s):  
Sexual Dimorphism ◽  
Cross Sectional Study ◽  
Mean Value ◽  
The Body ◽  
Central Incisor ◽  
Maxillary Canine ◽  
Cross Sectional ◽  
Mean Values ◽  
Gender Determination ◽  
Significant Difference

Determining gender is one of the most important procedure in forensics. Teeth are made of the most enduring mineralized tissues in the body, as such, they have an extraordinary resistance to putrefaction and the effects of external agents (physical, thermal, mechanical, chemical or biological) which makes them invaluable material for anthropological, genetic, odontologic and forensic examinations.i)To assess the degree of sexual dimorphism in maxillary canine using maxillary canine index, maxillary first molar and central incisor using mesiodistal (MD) and buccolingual/buccopalatal (BL) dimensions of the crown. ii) To determine the accuracy of maxillary canine index, first molar and central incisor dimensions (mesiodistal and buccolingual/buccopalatal) in determining sex.This study consisted of total 30 participants (males=15, females=15) of age group ranging from 20 to 35 yrs. Measurement of dimensions of selected teeth were performed on maxillary cast using digital Vernier caliper, resolution 0.01mm. Data thus obtained were analyzed statistically.The mean values of all the measurements in males were greater than females. There was statistical significant difference in mean value of bucco-lingual width of molar, mesiodistal width of canine (on left side, right side and average) and the inter-canine distance between males and females. The buccolingual width of molar showed the highest % of sexual dimorphism (5.33%) and the mesiodistal width of molar showed the least % of dimorphism (0.7%). Bucco-lingual width of molar posed the highest prediction accuracy for gender determination. We conclude that buccolingual width of maxillary first molar can be used to predict the gender when only teeth of maxillary arch are available for forensic examination.

scholarly journals Study of Relationship of Anemia among Edentulous Patients

2018 ◽  
Vol 5 (2) ◽  
pp. 105-108
Author(s):  
Lijo Isaac ◽  
A. P. Nirmal Raj ◽  
Reshma Karkera ◽  
R Naveen Reddy
Keyword(s):  
Nutritional Status ◽  
T Test ◽  
Dental Status ◽  
Adult Patients ◽  
Control Group ◽  
Age Group ◽  
Edentulous Patients ◽  
Student’S T ◽  
Relationship Of ◽  
Student’S T Test

Very little studies were done on relationship of the dental status and the nutritional status. The present study was done to study relation between edentulism and the presence of anemia. The study was included of 46 adult patients with edentulism and same numbers of patients were taken as controls. The results were tabulated and analyzed with the help of IBM SPSS statistics 20 using student’s t test. The hemoglobin levels were lower in the edentulous patients that that of the control group. The present study had shown that the nutritional status were poor resulting in anemia in case of edentulous patients as compared to control group with the same age group.  

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