Relationships Between the Gonial Angle and Mandibular Ramus Morphology in Dentate Subjects: A Panoramic Radiophotometric Study

2012 ◽  
Vol 38 (3) ◽  
pp. 203-210 ◽  
Author(s):  
Takahiro Ogawa ◽  
Shigeo Osato ◽  
Yuichi Shishido ◽  
Michio Okada. DDS ◽  
Kimiharu Misaki
Keyword(s):  
Morphometric Parameters ◽  
Mandibular Ramus ◽  
Oral Rehabilitation ◽  
Men And Women ◽  
Panoramic Radiographs ◽  
Gonial Angle ◽  
Mandibular Body ◽  
Post Operation ◽  
And Gender ◽  
The Right

Analysis of dental panoramic radiographs (DPRs) is an indispensable diagnostic tool for dental implants both pre and post operation. Many studies on linear and angular morphometry of the mandibular body have been conducted, but those on the mandibular ramus have not yet been reported. The purpose of this study was to investigate the differences in the morphometric parameters of the mandibular ramus between high and low gonial angles (GAs) on DPRs as well as between genders, and to determine the relationships between GA and variables of the mandibular ramus morphometry. The DPRs of 156 dentate subjects (78 for each gender) with more than 15 teeth present, a mean age of 49.54 years, and a mean number of teeth of 26.20 were examined. The films were divided into the following 2 groups of GA: less than 120° (low gonial angle, LGA) and more than 125° (high gonial angle, HGA) in both the right and left sides. The parameters for Ar′-Go, MaF-Go, RW, and RD in the LGA group were significantly larger than those in the HGA group in both men and women, but that for the ramus angle (RA) was significantly smaller in the LGA group than in the HGA group. Significant gender differences in the 2 GA groups were recognized with respect to the Ar′-Go, MaF-Go, RW, and RD parameters. Significant negative low and moderate correlations were found between GA and the Ar′-Go, MaF-Go, RW, and RD variables, whereas significant positive low correlation was found between GA and the RA variable. Within the limits of this study, the analysis of the mandibular ramus morphometry on DPRs in terms of GA size and gender was found to be useful for devising a highly predictive and strategic plan for implant-supported oral rehabilitation.

scholarly journals Modelling growth curves of the normal infant’s mandible: 3D measurements using computed tomography

2021 ◽  
Author(s):  
Jan Aart M. Schipper ◽  
Manouk J. S. van Lieshout ◽  
Stefan Böhringer ◽  
Bonnie L. Padwa ◽  
Simon G. F. Robben ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Growth Models ◽  
Normal Growth ◽  
Growth Patterns ◽  
Ct Scans ◽  
Mandibular Ramus ◽  
Linear Measurements ◽  
Mandibular Growth ◽  
Gonial Angle ◽  
Mandibular Body

Abstract Objectives Data on normal mandibular development in the infant is lacking though essential to understand normal growth patterns and to discriminate abnormal growth. The aim of this study was to provide normal linear measurements of the mandible using computed tomography performed in infants from 0 to 2 years of age. Material and methods 3D voxel software was used to calculate mandibular body length, mandibular ramus length, bicondylar width, bigonial width and the gonial angle. Intra- and inter-rater reliability was assessed for these measurements. They were found to be sufficient for all distances; intra-class correlation coefficients were all above 0.9. Regression analysis for growth modelling was performed. Results In this multi-centre retrospective study, 109 CT scans were found eligible that were performed for various reasons (e.g. trauma, craniosynostosis, craniofacial abscesses). Craniosynostosis patients had larger mandibular measurements compared to non-craniosynostosis patients and were therefore excluded. Fifty-one CT scans were analysed. Conclusions Analysis showed that the mandible increases more in size vertically (the mandibular ramus) than horizontally (the mandibular body). Most of the mandibular growth occurs in the first 6 months. Clinical relevance These growth models provide insight into normal mandibular development in the first 2 years of life. This reference data facilitates discrimination between normal and abnormal mandibular growth.

scholarly journals Handedness and gender influence blood pressure in young healthy men and women: A pilot study

2016 ◽  
Vol 50 (1) ◽  
pp. 10-15 ◽  
Author(s):  
I Rueda ◽  
I Banegas ◽  
I Prieto ◽  
R Wangensteen ◽  
AB Segarra ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Sex Hormones ◽  
Sex Steroids ◽  
Menstrual Phase ◽  
Men And Women ◽  
Left Handed ◽  
Gender Influence ◽  
Left And Right ◽  
And Gender ◽  
The Right

AbstractObjective. The type and level of sex steroids influence blood pressure (BP). It has been suggested that functional brain asymmetries may be influenced by sex hormones. In addition, there are inter-arm differences in BP not yet related with handedness. In this study, we hypothesize a possible association between sex hormones, handedness, and inter-arm differences in blood pressure.Methods. To analyze this hypothesis, we measured BP in the left and right arm of the left and right handed adult young men and women in menstrual and ovulatory phase and calculated their mean arterial pressure (MAP).Results. Significant differences depending on sex, arm, handedness or phase of the cycle were observed. MAP was mostly higher in men than in women. Remarkably, in women, the highest levels were observed in the left handed in menstrual phase. Interestingly, the level of handedness correlated negatively with MAP measured in the left arm of right-handed women in the ovulatory phase but positively with the MAP measured in the right arm of right-handed women in the menstrual phase.Conclusions. These results may reflect an asymmetrical modulatory influence of sex hormones in BP control.

scholarly journals SYMMETRICITY AND GENDER DIFFERENCES OF KNEE JOINT ADDUCTION MOMENT

2020 ◽  
Author(s):  
Aleksei Borisovich Malkov ◽  
Stanislav Nikolaevich Kondrat'ev ◽  
Mariya Vasil'evna Abros'kina
Keyword(s):  
Gender Differences ◽  
Knee Joint ◽  
Healthy Volunteers ◽  
Motion Capture ◽  
Research Evaluation ◽  
Lower Limbs ◽  
Men And Women ◽  
And Gender ◽  
The Right ◽  
Support Phase

Actuality. Gonarthrosis is one of the most insidious degenerative diseases, which has a number of gait biomechanical predictors. Of these, the most studied is the knee joint adduction moment in the support phase, however, there is a lack of research devoted to the search for its reference values among various age and gender groups. Purpose of research. Evaluation of gender and functional body asymmetry effect on peak moments of knee joint adduction in healthy volunteers. Materials and methods. The study was conducted on 38 healthy volunteers (17 men and 21 women) aged 20-45 years old through the motion capture hardware-software complex of the company "Vicon Motion Capture Systems". A comparative assessment was made for the first and second peaks amplitude of the knee joint adduction moment in the support phase. Symmetry was evaluated for both peaks in general, as well as separately for men and women. Gender differences for both peaks were evaluated in total for the right and left lower limbs. Results. The absence of significant intergroup differences in the both peaks amplitude of the knee joint adduction moment between the right and left legs, irrespective of gender (p0.05), was revealed, which demonstrates the symmetry of the adduction forces acting on the knee joint in the support phase. When comparing the both peaks amplitudes of the knee joint adduction moment in men and women, there was absence of significant differences for the first peak (p0.05), but a significantly higher second peak in males (p0.05). Conclusion. The obtained variability aspects of the peak moments of knee joint adduction will find their application in functional diagnostics using the motion capture technology.

Morphometrical Analysis of Dry Adult Human Hip Bones by Coxal Index

2021 ◽  
Vol 8 (7) ◽  
pp. 320-326
Author(s):  
Meril Ann Soman ◽  
Rani Nallathamby
Keyword(s):  
Sex Determination ◽  
Morphometric Parameters ◽  
Bone Morphometry ◽  
Medical College ◽  
Morphometrical Analysis ◽  
Keywords Hip ◽  
Length Width ◽  
And Gender ◽  
The Right ◽  
Specimen Identification

Background: The hip bone is one of the most useful skeletal elements in adult skeleton for sex determination. Hip bone may be used even when fragmentary for both medico legal and archaeological purposes. The aim of the present study is to measure few morphometric parameters of various hip bones and to assess these values both side wise and gender wise. Method: The present study was conducted in department of Anatomy, Yenepoya Medical College, Mangalore. 100 adult dry human hip bones were included in the study, of which 50 were male and 50 were female hip bones. 50 bones belonged to right side and 50 to left side. The morphometrical parameters measured were length, width and weight of the hip bones. Coxal index was also calculated. Result: Range, mean, median, standard deviation and standard error of mean were determined for each parameter. Conclusions were drawn after comparing the values with series of other workers. Conclusion: The values were slightly higher on the left side compared to the bones of the right side and also the values were more in male bones compared to female bones. The study would help the forensic experts and the anthropologists in specimen identification and sex determination from skeletal remains. It would also be valuable for the anatomists and the orthopedicians in their respective fields. Keywords: Hip bone, morphometry, coxal index, sexual dimorphism, hip bone weight.

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.

Evaluation of the Trabecular Structure of Mandibular Condyles in Children Using Fractal Analysis

2021 ◽  
Vol 45 (6) ◽  
pp. 441-445
Author(s):  
Muge Bulut ◽  
Muge Tokuc
Keyword(s):  
Fractal Analysis ◽  
Age Groups ◽  
Mandibular Condyle ◽  
Trabecular Structure ◽  
Panoramic Radiographs ◽  
Significant Difference ◽  
The Mean ◽  
And Gender ◽  
Box Counting Method ◽  
The Right

Objective: To evaluate the trabecular internal structure of the mandibular condyle with fractal analysis on panoramic radiography in children. Study Design: 159 panoramic radiographs were separated into 8 groups according to age and gender. The radiographs were standardized as 8-bit images. Regions of interest, located on both mandibular condyles, were selected as 64x64 pixel squares. Image J v1.50i software was used to obtain the fractal dimension (FD) values by the box-counting method. Results: The data obtained from the right and left condyles were analyzed in terms of gender and age groups. No statistically significant difference was observed between the genders in respect of the mean FD values for both condyles (p&gt;0.05). Mean, standard deviations and the 95% confidence intervals for the FD values of the left and right condyles were obtained according to age. A statistically significant difference was observed in the mean FD values for both left (p= 0.019) and right (p= 0.000) condyles when all groups were compared and no statistically significant difference was found between all groups except the 6-year-old group for both condyles. In both condyles, the significantly lowest mean FD values were determined in the 6 years age group. Conclusions: The FD values of the mandibular condyle trabecular structure changed with age. It will be possible to evaluate these changes from panoramic radiographs by making calculations using the fractal analysis method.

scholarly journals Women, Reconciliation Right and Gender Justice in Islam Family Law

2019 ◽  
pp. 173
Author(s):  
Aswiyanto Aswiyanto
Keyword(s):  
Content Analysis ◽  
Islamic Law ◽  
Family Law ◽  
Analysis Approach ◽  
Gender Justice ◽  
Gender Perspective ◽  
Men And Women ◽  
And Gender ◽  
The Right ◽  
Muslim Scholars

Religious teachings are considered to have long oppressed women. Teachings having been dominated by men have been used as justifications for the perception of society that is very detrimental to women. This article discusses the gap of understanding on women's rights to reconcile with their husband who have divorced them, viewed from the perspective of Islamic scholars and Islamic law. In this case, the Qur'an has the principle that the positions of men and women are equal as a servant, because men and women are created from the same substance (min nafsin waahidah), the same task (khalifatullah filardh), and have same obligations (liya'budun). However, Muslim scholars agree that the reconciliation is absolutely the husband’s right. In gender perspective, women can apply for reconciliation (Rujuk) as their rights to their husbands. This study conducts analysis using a content analysis approach related to the issue of reconciliation rights dominated by men (husbands) by means of redeeming the husband's rights that have been given to them. And in the presence of khulu, the wife also has the right of reconciliation (Rujuk) to the husband who has divorced her.

scholarly journals Orthopantomography and use of Mandibular Indices for the Evaluation of Gender Distribution in Navi Mumbai Population - A Retrospective, Single Blind Study

2021 ◽  
pp. 87-94
Author(s):  
Priyanka Vijay Patil ◽  
Manali Kulkarni ◽  
Sandeep Pagare ◽  
Naveen Shetty ◽  
Hemant Bhutani ◽  
...  
Keyword(s):  
Sexual Dimorphism ◽  
Forensic Sciences ◽  
Mandibular Ramus ◽  
Linear Measurements ◽  
Desktop Computer ◽  
Gender Determination ◽  
Margin Of Error ◽  
Mandibular Body ◽  
The Right ◽  
Ramus Height

Introduction: The study of forensic sciences often leaves the forensic expert to draw conclusions from any and every material available in determining the identity of the deceased. The initial step in identifying a person is to determine their gender based on their adult skeleton. The human skeleton displays sexual dimorphism, of which the skull is most dimorphic providing an accurateness of 92%. However, in certain situations where the skull may not be found intact, the mandible plays a vital role. The mandible's thick covering of compact bone helps keep it from exploding during a mass tragedy. Dimorphism in the mandible is gender specific and is mainly reflected in its shape and size. The mandible is also easily radiographed and specific linear measurements of the mandibular rami as seen on an OPG are useful indices for gender determination.  Aims: To examine the efficacy of mandibular rami measures such as maximum ramus breadth, maximum ramus height, minimum ramus breadth, condylar height, coronoid height, mandibular body length and gonial angles on the right and left side of an OPG in determining gender. Materials and methods: 110 digital OPG’s (55 males, 55 females) of a Navi Mumbai population were obtained retrospectively from a reputed dental college and hospital. The OPG’s were taken using Xtropan 2000 OPG machine, 10x12 PSP plates, exposure parameters of 75 Kvp, 8 mas, 13 sec, and KODAK CR 7400 digitizer. Master View 3.0 software was used on the desktop computer to measure the mandibular ramus's width and thickness. Maximum ramus breadth, Maximum Ramus height and lowest ramus breadth of the mandibular rami, as well as the height of the condyle and the coronoid bone, and the length of the mandibular body and gonial angles on the right and left sides of the mouth, were all measured. Using a statistical formula, the measurements were substituted and gender was estimated. Result: We used the IBM SPSS v 21.0 statistical software for social sciences to do our statistical study. p0.05 was deemed statistically significant, with a 5% margin of error and a 20% margin of error, giving the study an 80 percent power. In the study group, 51 of the 55 men were expected to be males, while 49 of the 55 females were anticipated to be females, while 6 of the 55 females were predicted to be males. Conclusion: This research shows that the mandibular ramus is a useful tool for determining gender, and digital panoramic imaging yielded the best accurate linear measures. There was considerable sexual dimorphism in the mandibular ramus in the chosen Navi – Mumbai subpopulation, and the combination of 8 factors demonstrated an accuracy of 91.81 percent and was helpful for gender determination.

scholarly journals DENOMINATION OF SPINSTERS AND BACHELORS IN ARKHANGELSK DIALECTS

2020 ◽  
Vol 12 (2) ◽  
pp. 18-24
Author(s):  
Irina B. Kachinskaya ◽  
Keyword(s):  
Social Status ◽  
Single Woman ◽  
Men And Women ◽  
Semantic Group ◽  
Feminine Gender ◽  
Elderly Parents ◽  
Field Notes ◽  
And Gender ◽  
Card Catalog ◽  
The Right

Terms of kinship are closely related to the lexico-semantic group associated with gender and age denomination, as well as the group associated with the determination of social status. Everything considered a norm has a high social status. Married women and men, children born in marriage fall under the norm. A situation is considered normal when a woman and a man perform their functions in marriage well, i. e. they take care of each other, their children, elderly parents, the house; a woman lives in her husband’s house. Everything that is contrary to the norm receives a negative assessment. Accordingly, people who are unmarried for various reasons, i.e. single men and women, have a low social status in traditional culture: spinsters and bachelors, widows and widowers, divorced spouses; illegitimate children; children who have lost or never had parents (or one of the parents), i. e. orphans; childless spouses; a woman who had a baby out of marriage; women and men who poorly perform their functions in marriage (bad parents, bad spouses – for example, drinkers, adulterers); a husband who came to live in his wife’s house. The article analyzes denomination and motivation for denomination of spinsters and bachelors, i. e. people who have never been married or got married at an older age as compared to what is considered ‘normal’. For the designation of a girl who did not get married in due time, about 20 lexemes and 30 attributive combinations were noted in Arkhangelsk dialects. Accordingly, there were noted about 20 lexemes and one and a half dozen word combinations designating a bachelor. To denote a spinster, there are used the same lexemes as for denoting a girl of marriageable age: virgin, girl, maid, etc. Words that have a direct meaning in the age and gender category receive a different meaning after being transfered to the lexico-semantic group ‘Social status’. The same lexemes can be used in other meanings, for example, ‘a woman who had a baby out of marriage’. Word combinations or phraseological units may be a motivation for the formation of lexemes denoting a spinster. Noteworthy are parallel names: old / elderly maid ~ old/elderly guy; starukha, staritsa ~ starik, starets (derived from the root ‘star’, which conveys the idea of being old); perestarok – for both men and women; kholostyak (which is explicitly translated as ‘bachelor’) ~ kholostovka, kholostyachka (feminine gender versions of ‘kholostyak’); bobyl’ ~ bobylka. However, this parallelism can be purely superficial: where a single man is concerned, the designations under study mean, as a rule, a guy who is not married yet; but when it comes to a single woman, the designations refer to a girl who has already missed the right time to get married. The change in the emphasis is very significant. The study is based on the material from published volumes of the Arkhangelsk Regional Dictionary, its card catalog and the author’s field notes.

The Relationship between Body Image and Exercise Adherence in Fitness Centre Exercising Sample

2018 ◽  
Vol 1 (80) ◽  
Author(s):  
Rasa Jankauskienė ◽  
Brigita Miežienė
Keyword(s):  
Body Image ◽  
Exercise Adherence ◽  
Physical Activity Promotion ◽  
Well Being ◽  
Social Physique Anxiety ◽  
Men And Women ◽  
Activity Promotion ◽  
And Gender ◽  
Body Self ◽  
The Relationship

Research background and hypothesis. The analysis of factors which might infl uence exercise adherence is important issue for physical activity promotion. Studies show that exercisers’ body image is important factor associated with well being, exercise motivation and specifi c exercise–related behaviour.Research aim was is to examine the relationship between exercise adherence, body image and social physique anxiety in a sample of fi tness centre participants. Research methods. Members of fi tness centres (n = 217, 66 of them were women) provided their answers on exercise experience, in three subscales (appearance evaluation, appearance orientation and overweight preoccupation) of The Multidimensional Body-Self Relations Questionnaire (MBSRQ-AS; Brown et al., 1990) and Social Physique Anxiety Scale (SPAS; Hart et al., 1989). Mean age of the sample was 29.02 (9.85) years (range = 18–68 years).Research results. Women demonstrated higher appearance orientation, overweight preoccupation and social physique anxiety compared to men. However, we observed no signifi cant differences in appearance evaluation, appearance orientation and overweight preoccupation in the groups of different exercise experience of men and women. When overweight respondents (≥ 25 kg / m²) were excluded from the analysis, there were no statistically signifi cant differences observed in body image and social physique anxiety in exercise experience groups of men and women. Exercising longer than 6 years signifi cantly predicted overweight preoccupation [95% CI: 1.25–16.94] controlled by age and gender. Discussion and conclusions. Exercising men demonstrated more positive body image and lower social physique anxiety compared to women, except for appearance evaluation. There were observed no body image and social physique relationships with exercise adherence observed in the sample of fi tness centre participants, however, exercise experience longer than 6 years predicted overweight preoccupation.Keywords: body image concerns, exercise experience, self-presentation.

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