Dentition, Behavior, and Diet Determination

Krueger, Kristin L.

doi:10.1002/9781118845486.ch24

Cited by 4 publications

(5 citation statements)

References 61 publications

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“…Of the 69 LLM2 observed, dental microwear textures were well‐preserved on 33 occlusal surfaces and 39 buccal surfaces, and 27 individuals had well‐preserved microwear textures on both surfaces (e.g., Figure 2). The unavoidable winnowing of our sample due to various taphonomic factors is typical, as noted elsewhere (Correia, et al, 2021; Hernando, Willman, et al, 2020; Krueger, 2016; Martin et al, 2018; Teaford, 2007). The detailed list of occlusal and buccal microwear data by individual can be found in the Supplementary Information (Table S1).…”

Section: Resultssupporting

confidence: 75%

“…As discussed previously, one of the downsides of 2D and 3D dental microwear analyses, regardless of the type of surface considered, is the large number of samples that must be discarded due to different taphonomic issues, poor molds, and other factors (Correia et al, 2021; Hernando, Willman, et al, 2020; Krueger, 2016; Teaford, 2007). In vivo wear is more pronounced on the occlusal surfaces, making facet 9 more likely to be unusable in analyses.…”

Section: Discussionmentioning

confidence: 99%

Section: Inter-surface Variationmentioning

confidence: 99%

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What about the buccal surfaces? Dental microwear texture analysis of buccal and occlusal surfaces refines paleodietary reconstructions

Hernando

Willman

Souron

et al. 2022

American Journal of Biological Anthropology

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Objectives This study analyzes and compares dental microwear textures on occlusal and buccal surfaces from the same tooth to determine if using these surfaces in tandem can provide complementary data for dietary reconstructions. Materials and methods Cova de la Guineu is a Late Neolithic‐Chalcolithic burial cave located in Font‐Rubí (Barcelona, Spain). The study sample consisted of 69 individuals represented by the lower left second molar. However, only 27 individuals had well‐preserved surfaces. Dental Microwear Texture Analysis was performed on both surfaces using a Sensofar® S Neox white‐light confocal profilometer following standard procedures. Toothfrax® software was used to quantify surface complexity and anisotropy. Results The bootstrap resampling analysis shows significant differences in complexity and anisotropy between surfaces. There is no correlation between surfaces for complexity or anisotropy. The occlusal surfaces exhibit high complexities and low anisotropies, which are similar to values observed in Late Neolithic farming groups from Belgium. Discussion The combination of occlusal and buccal microwear signatures provided important inferences regarding the studied sample. First, occlusal complexity and anisotropy values indicate an abrasive dietary regime. Second, we propose that the higher anisotropy values found on buccal surfaces, compared to those on the occlusal ones, are attributed to the specific mechanisms of microwear formation for each surface. Finally, combining both surfaces may increase the number of samples suitable for analysis. Further studies, with greater intergroup sampling, will help to understand how buccal microwear reflects or complements DMTA signatures on the occlusal surfaces.

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Section: Resultssupporting

confidence: 75%

Section: Discussionmentioning

confidence: 99%

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What about the buccal surfaces? Dental microwear texture analysis of buccal and occlusal surfaces refines paleodietary reconstructions

Hernando

Willman

Souron

et al. 2022

American Journal of Biological Anthropology

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“…Another issue that arises, particularly with humans, is the concern that nonmasticatory wear can obscure masticatory wear. Nonmasticatory wear is created via many behaviors such as using teeth as tools to manipulate hide, sinew, cordage and other materials; habitually holding nonfood items like pipe stems or sewing needles with their teeth; and wearing facial piercings such as labrets (Alt & Pichler, ; Krueger, , ; Krueger et al, ; Krueger & Ungar, , ; Milner & Larsen, ; Stojanowski, Johnson, Paul, & Carver, ).…”

Section: Caveatsmentioning

confidence: 99%

Dental microwear texture analysis ofHomo sapienssapiens: Foragers, farmers, and pastoralists

Schmidt

Remy

Sessen

et al. 2019

American J Phys Anthropol

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Objectives The current study seeks to determine if a sample of foragers, farmers, and pastoralists are distinguishable based on their dental microwear texture signatures. Materials and methods The study included a sample of 719 individuals from 51 archeological sites (450 farmers, 192 foragers, 77 pastoralists). All were over age 12 and sexes were pooled. Using a Sensofar® white‐light confocal profiler we collected dental microwear texture analysis (DMTA) data from a single first or second molar from each individual. We leveled and cleaned data clouds following standard procedures and analyzed the data with Sfrax® and Toothfrax® software. The DMTA variables were complexity and anisotropy. Statistics included ANOVA with partial eta squared and Hedges's g. We also performed a follow‐up K‐means cluster analysis. Results We found significant differences between foragers and farmers and pastoralists for complexity and anisotropy, with foragers having greater complexity than either the farmers or the pastoralists. The farmers and pastoralists had greater anisotropy than the foragers. The Old World foragers had significantly higher anisotropy values than New World foragers. Old and New World farmers did not differ. Among the Old World farmers, those dating from the Neolithic through the Late Bronze Age had higher complexity values than those from the Iron Age through the medieval period. The cluster analysis discerned foragers and farmers but also indicated similarity between hard food foragers and hard food farmers. Discussion Our findings reaffirm that DMTA is capable of distinguishing human diets. We found that foragers and farmers, in particular, differ in their microwear signatures across the globe. There are some exceptions, but nothing that would be unexpected given the range of human diets and food preparation techniques. This study indicates that in general DMTA is an efficacious means of paleodietary reconstruction in humans.

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“…Neanderthal in cold, open steppe climate showed dependence on meat resources. Meanwhile, those with forest conditions showed dependence on the plant resource base, which had the increasing sign of abrasive loads (Krueger 2015;Schmidt 2015).…”

Section: Diets and Human Dentition Evolutionmentioning

confidence: 99%

Lifestyle changes and its effect towards the evolution of human dentition

Kurniawan

Moza

Nuraini

et al. 2022

Egypt J Forensic Sci

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Background The dentition of modern humans has evolved from their hominid ancestors to their current form. Factors regarding the changes of lifestyle such as dietary habits and usage of tools have affected the evolution of human dentition. This article aimed to discuss the effect of dietary changes on the evolution of human teeth. An online literature search in the PubMed database was conducted according to the inclusion criteria of this study. Main body The culture transition from a hunter-gatherer society to agriculture is followed by dietary changes, which result in a decrease of tooth wear due to more refined food sources in agricultural intensification. By analyzing the microwear pattern such as shear, striation, and pattern of the buccal teeth, the dietary hypothesis based on the occlusal tooth microwear analysis could be examined. Conclusion The dietary hypothesis based on the occlusal tooth microwear study could be tested by analyzing the microwear pattern (shear, striation, pattern) of the buccal teeth. Posterior teeth are more closely related to diet, while anterior teeth are related to non-dietary tooth-use behaviors, or using the teeth as a tool or third hand which causes more limited striations at the labial surface.

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Dentition, Behavior, and Diet Determination

Cited by 4 publications

References 61 publications

What about the buccal surfaces? Dental microwear texture analysis of buccal and occlusal surfaces refines paleodietary reconstructions

What about the buccal surfaces? Dental microwear texture analysis of buccal and occlusal surfaces refines paleodietary reconstructions

Dental microwear texture analysis ofHomo sapienssapiens: Foragers, farmers, and pastoralists

Lifestyle changes and its effect towards the evolution of human dentition

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