Sex Discriminatory Effectiveness Using Combinations of Permanent Teeth

Garn, Stanley M.; Cole, Patricia E.; Wainwright, Roger L.; Guire, Kenneth E.

doi:10.1177/00220345770560062601

Cited by 81 publications

(42 citation statements)

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“…Although previous authors have proposed that agriculturalists would show reduced tooth size (Hinton et al, 1980;Larsen, 1995;Y'Edynak, 1989), this idea is not clearly reflected in our results, as Agta and San, who are typical hunting and gathering groups, have smaller teeth than Navajo, who have an agro-pastoral subsistence pattern. This inconsistency suggests that genetic factors determine dental size, rather than external or environmental influences (Dempsey et al, 1999;Garn et al, 1977). Australian Aborigines, Native Americans, and Eskimos were reported to have relatively large teeth and the Negritos (Agta) some of the smallest (Hanihara and Ishida, 2005), which is in accord with our results.…”

Section: Intergroup Variationsupporting

confidence: 89%

First molar size and wear within and among modern hunter-gatherers and agricultural populations

Górka

Romero

Pérez‐Pérez

2015

HOMO

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Please cite this article as: Górka, K., Romero, A., Pérez-Pérez, A.,First molar size and wear within and among modern hunter-gatherers and agricultural populations, Journal of Comparative Human Biology (2015), http://dx.doi.org/10. 1016/j.jchb.2015.02.007 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractApart from reflecting modern human dental variation, differences in dental size among populations provide a means for studying continuous evolutionary processes and their mechanisms. Dental wear, on the other hand, has been widely used to infer dietary adaptations and variability among or within diverse ancient human populations. Few such studies have focused on modern foragers and farmers, however, and diverse methods have been used. This research aimed to apply a single, standardized, and systematic quantitative procedure to measure dental size and dentin exposure in order to analyze differences among several hunter-gatherer and agricultural populations from various environments and geographic origins. In particular, we focused on sexual dimorphism and intergroup differences in the upper and lower first molars. Results indicated no sexual dimorphism in molar size and wear within the studied populations. Despite the great ethnographic variation in subsistence strategies among these populations, our findings suggest that differences in sexual division of labor do not affect dietary wear patterns.

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Section: Intergroup Variationsupporting

confidence: 89%

First molar size and wear within and among modern hunter-gatherers and agricultural populations

Górka

Romero

Pérez‐Pérez

2015

HOMO

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“…The results of present studies are inconsistent with other studies, significant differences were observed between sexes for teeth [8,18,19]. This is consistent with Garn et al, Pratibha Rani et al, Eboh, who indicated that the teeth of males were larger than those of females [19,5,20].…”

Section: Discussioncontrasting

confidence: 72%

Odontometrics: A Useful Method for Gender Determination in Udaipur PopulationTM Identity Panel

2015

J Forensic investig

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Background: Determining gender is one of the most important parameters in forensic identification. Teeth are an excellent material in living and nonliving populations for anthropological, genetic, odontologic and forensic investigations being hardest and chemically the most stable tissue in the body, selectively preserved and fossilized, thereby providing the best records for evolutionary change. Their durability in the face of fire and bacterial decomposition makes them invaluable for identification. Tooth size standards based on odontometric investigations can be used in age and gender determination.Aim and objective : To estimate gender of individuals of Udaipur population by morphometric analysis of teeth and to evaluate and compare specific permanent tooth and dimension for gender determination by using digital vernier caliper. Materials and methods:The buccolingual and mesiodistal dimensions of all permanent teeth (except second and third molars) of right side (N=25 males and 25 females) belonging to Udaipur, were recorded from the study casts using digital vernier calipers. Result and conclusion:Males have larger teeth than females and buccolingual dimension is a better gender predictor than mesiodistal dimension. Maxillary canine is found to be more significant in Udaipur population for sexual dimorphism. To conclude, consideration of buccolingual dimension of teeth of Udaipur population can effectively aid in gender determination when both the dimensions are considered together.

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“…This variability in MD canine breadth is also seen in the data amassed for three major categories: hunter-gatherers, horticulturalists/agriculturalists, and urban populations (Frayer and Wolpoff, 1985). Utilizing dental casts of the mesiodistal and buccolingual diameters in a stepwise discriminant study found that with data from just two teeth, the sex of about 83% could be correctly identified, with mesiodistal diameter again providing most of the discrimination (Garn et al, 1977a). The often-used ratio mesiodistal/buccolingual tended to produce the lowest discrimination (64%).…”

Section: Sex Differences In Craniofacial Sizementioning

confidence: 80%

Sexual dimorphism using elliptical Fourier analysis: shape differences in the craniofacial complex

Lestrel

Kanazawa

Wolfe³

2011

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The assessment of sexual dimorphism plays an essential role in numerous disciplines such as: (1) forensics, with its concern with skeletal identification, including sexing; (2) archeology, where the sexing of skeletal materials is an essential aspect; (3) primatology, where sex differences are diverse; (4) paleoanthropology, where the identification of sex can influence taxonomic and phylogenetic decisions, and (5) growth and development, where one strives to identify differences before and after puberty. Other disciplines where sexual dimorphism plays an important function include orthodontics, gerontology, nutrition, and medicine. Quantitative studies of morphological forms in general, and sexual dimorphism in particular, is not a trivial endeavor in that at least two aspects are involved, namely size and shape. Focusing on the human skeletal system, sexual dimorphism affects all bones, including the cranium, pelvis, long bones, and vertebral column. However, the overwhelming numbers of studies of sexual dimorphism are based solely on size differences. These studies have repeatedly demonstrated that males are larger for most dimensions. The question of shape differences, if indeed present, cannot be readily inferred from these studies. Consequently, a number of studies were initiated, over some 20 years duration, that specifically focused on the presence of sexually dimorphic shape changes in the skeletal craniofacial complex. The following anatomical structures were examined: (1) the human nasal bones, (2) the primate cranial base, (3) the human cranial base, (4) the human dental arch, (5) the human mandibular arch, and (6) the human cranial vault. These six datasets involved 16 samples for a total of 1110 specimens. Every dataset generated statistically significant sexually dimorphic differences in shape. Thus, it is apparent that the craniofacial complex not only exhibits size differences but also specific shape differences.

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Sex Discriminatory Effectiveness Using Combinations of Permanent Teeth

Cited by 81 publications

References 0 publications

First molar size and wear within and among modern hunter-gatherers and agricultural populations

First molar size and wear within and among modern hunter-gatherers and agricultural populations

Odontometrics: A Useful Method for Gender Determination in Udaipur PopulationTM Identity Panel

Sexual dimorphism using elliptical Fourier analysis: shape differences in the craniofacial complex

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