Sex determination by using mandibular ramus: A digital radiographic study

Nagaraj, Tejavathi; James, Leena; Gogula, Sita; Ghouse, Noori; Nigam, Haritma; Sumana, C. K.

doi:10.15713/ins.jmrps.99

Cited by 7 publications

(6 citation statements)

References 8 publications

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“…The mean minimum ramus breadth in males and females (28.89 mm and 27.49 mm) in the present study is lesser than that of the study done by Vodanovic on Croatians (31.26 mm in males and 28.36 mm in females) [10], N. Ongkana on Thais (32.8 mm in males and 31.4 mm in females) [7] and and lesser than values obtained by Tejavathi Nagaraj et al (33.50 mm in males and 32.63 mm in females) [8]. In all these studies it was observed that the minimum ramus breadth is greater in males than the females and the differences were highly significant (p<0.01) on statistical analysis.…”

Section: Resultscontrasting

confidence: 81%

“…It was been observed that the maximum ramus breadth in males was 1.63 mm broader than that of the females and the differences were statistically very highly significant (p= 0.000). [Table 1] The mean maximum ramus breadth of males and females (35.82 mm and 34.17 mm) in the present study is lesser than the values obtained by Vodanovic M on Croatian mandibles (44.20 mm in males and 41.23 mm in females) [10] and lesser than values obtained by Tejavathi Nagaraj et al (40.55 mm in males and 39.44 in females) [8]. In all these studies it was observed that, the maximum ramus breadth is greater in males than in females and the differences were very highly significant (p<0.001) on statistical analysis.…”

Section: Resultscontrasting

confidence: 61%

“…[Table 1] The mean coronoid height of males and females (58.20 mm and 55.59 mm) in the present study Shivaprakash S, Ashok K R. STUDY OF MANDIBULAR RAMUS AS PREDICTOR OF SEX. is much lesser than the values obtained by N. Ongkana on Thai mandibles (64.8 mm in males and 59 mm in females) [7] and radiographic values obtained by Tejavathi Nagaraj et al (69.13 mm in males and 65.88 in females) [8]. In all these studies it was observed that, the coronoid height is higher in males than in females and the differences were very highly significant (p<0.001) on statistical analysis.…”

Section: Resultsmentioning

confidence: 54%

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Study of Mandibular Ramus as Predictor of Sex

S¹,

R²

2018

IJAR

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Background: Methods based on measurements and morphometry are accurate and can be used in determination of sex. Even the bony remains like mandibular ramus can be used to predict the sex of the individual which will be of help for forensic experts. Morphometry of mandibular ramus will also be of importance for anthropologists, anatomists and prosthetists.Materials and Methods: Coronoid height, maximum ramus breadth, minimum ramus breadth and maximum ramus height was measured in 200 adult cadavers. Results:The coronoid height varied from 42.02 mm to 68.46 mm in males and it varied from 40.08 mm to 66.76 mm in females. The maximum ramus breadth in male mandible varied from 28.84 mm to 42.28 mm and in females it varied from 27.44 mm to 41.42 mm. The minimum ramus breadth in males varied from 21.92 mm to 36.80 mm, in females it varied from 17 mm to 34.26 mm. The maximum ramus height in males varied from 47.76 mm to 68.64 mm and in females it varied from 42.56 mm to 69.56 mm. Conclusion:All the parameters measured were higher in males than females. Comparison studies revealed that the South Indian parameters were lesser than Thais, Croatians and Africans.

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Section: Resultscontrasting

confidence: 81%

Section: Resultscontrasting

confidence: 61%

Section: Resultsmentioning

confidence: 54%

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Study of Mandibular Ramus as Predictor of Sex

S¹,

R²

2018

IJAR

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“…2,6 However other studies have also reported different parameters to be dimorphic such as; condylar height, coronoid height, minimum ramus breadth. 3,13,14,[17][18][19] Humphrey et al pointed out that the mandibular ramus and condyle are the sites that undergo the most morphological changes in size and remodeling during development, making them the most dimorphic. 16 In our study, the variable that can be of the least use for the discrimination was found to be minimum ramus breadth.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Sexual Dimorphism in Mandibular Ramus: An Orthopanoramic Study

Koju

Maharjan

Rajak³

et al. 2021

Kathmandu Univ. Med. J.

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Background Mandible is the largest and strongest bone of the face, is very durable, and hence remains well preserved than many other bones. In cases of mass disasters where an intact skull is not found, the mandible may play a vital role in sex determination as it is the most dimorphic bone of the skull. Morphometric analysis of mandibular ramus provides highly accurate data to discriminate sex. This can be accomplished by the use of panoramic radiography which is widely available and is used routinely to assess the mandibular structures. Objective To evaluate and compare the various parameters of the mandibular ramus and to determine the usefulness of the mandibular ramus as an aid in sex determination. Method Orthopantomograms of 140 samples (70 males and 70 females) were collected from the archives and traced manually on matte acetate tracing paper. Various parameters of mandibular ramus were measured on the right and left sides. The obtained measurements were subjected to discriminant function analysis. Result Mandibular measurements on the right side were greater than on the left side. However, only the ramus breath (minimum and maximum) and projective height of ramus were statistically significant (p < 0.05). All the measurements were higher for males than females. F-statistic values indicated that the highest sexual dimorphism was seen with the projective height of ramus and least with minimum ramus breath. Conclusion Mandibular ramus measurements can be a useful tool for gender determination and can be an essential tool in forensic science especially when there is damaged or partially preserved mandibles and may be helpful for medico-legal purpose in Nepal.

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“…1 One of the simple and accurate maturational indicator is skeletal development. 2 Age bring changes in teeth and bone including the facial bones. 3 Also, these structures remains for a very long period of life and serve as a reliable indicator of age, with mandibular bone being more valuable as its remodeling is continuous.…”

Section: Introductionmentioning

confidence: 99%

Age estimation using Orthopantomographs – a study on radiomorphometric parameters of mandibular ramus and gonial angle in south Indian population

Gupta¹

2022

Preprint

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Background . Age estimation using orthopantomographs (OPGs) has been in practice for a long time, but none of the methods is considered universally accepted yet. Very few studies have been conducted using radiomorphometric indices for age estimation. This study was conducted to assess the radiomorphometric indices using digital OPGs and their applicability for age estimation of individuals in south Indian population. Materials and Methods . OPGs of 611 individuals ( 302 male and 309 females) were selected on basis of predetermined inclusion and exclusion criteria. The OPGs of the patients ( age 0 to 69 years) were divided into 7 groups ( each decade) . The 6 radiomorphometric indices of bilateral Mandible ( upper and lower Ramus breadth; condylar , projected and coronoid ramus height ; and gonial angle ) were measured on Monitor of 15" display LED Screen using IMAGE J software.Results. The mean gonial angle was found to be higher in females as compared to males in all the age groups (with maximum in 10-19years age groups ) except in 03-09years age groups. In contrast to that, mean condylar height , mean projected condylar height , mean coronoid ramus height, and mean ramus breadth were found to be higher in males as compared to females in all the age groups except in 03-09 years groups, which was statically significant. Gonial angle was found to be greater in 3 to 19years age group, and thereafter decreasing with age. Condylar height , projective condylar height and coronoid ramus height were found to be increasing during 2 nd and 3 rd decades i.e 19 to 39 age group and thereafter decreasing with age (positive correlation ). Conclusion . Condylar height was found to be the most significant age predictor and ramus breadth was found to be most insignificant age predictor.

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Sex determination by using mandibular ramus: A digital radiographic study

Cited by 7 publications

References 8 publications

Study of Mandibular Ramus as Predictor of Sex

Study of Mandibular Ramus as Predictor of Sex

Assessment of Sexual Dimorphism in Mandibular Ramus: An Orthopanoramic Study

Age estimation using Orthopantomographs – a study on radiomorphometric parameters of mandibular ramus and gonial angle in south Indian population

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