Dental and oral nonmetric traits in a Coimbra reference sample: testing intrasample chronological and spatial variation

Marado, Luís Miguel; Silva, Ana Maria

doi:10.1007/s12520-016-0455-4

Cited by 5 publications

(2 citation statements)

References 41 publications

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“…11,[39][40][41] In humans, extreme lateralization of behavioural gestures, such as handedness, has been studied for over a century such as acquired directional mandibular asymmetries have been described because of chewing side preference. 42 Although skeletal asymmetries have been studied most extensively in humans, correlations between DA and lateralization appear to occur in many vertebrates. 12,35,[43][44][45][46] This link between masticatory lateralization and craniofacial asymmetry seems the most plausible explanation for the data we obtained; this also, because most of the masticatory muscles insert at the highest plastic anatomical points detected: buccinator (pars buccalis) and masseter (pars superficialis).…”

Section: Discussionmentioning

confidence: 99%

Marked Directional Skull Asymmetry in the Araucan Horse

et al. 2020

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Background Deviations from the perfect symmetry of normally bilateral symmetrical characters occur during individual development due to the influence of multiple factors. Fluctuating asymmetry (FA) is the random developmental variation of a trait (or character) that is perfectly symmetrical, on average, across a population. Directional asymmetry (DA) occurs when one side of the pair of body sides is strongly more marked. Objective We investigated the presence and level of skull FA and DA in the Araucan horse, a breed from East Colombia. Study Design A sample of 21 skulls belonging to adult animals was studied by means of standard geometric–morphometric methods using 16 landmarks on the dorsal aspect of the crania. Results Measurements showed a significant DA with a consistent rightward shift of the splanchnocrania. Conclusions The results of this study raise questions about the influence of masticatory biomechanics on the asymmetric development of the skull, and also about how management and ingesta-specific properties (such as abrasiveness) may influence this asymmetry.

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Section: Discussionmentioning

confidence: 99%

Marked Directional Skull Asymmetry in the Araucan Horse

et al. 2020

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“…Acronym code: PM = Pontevedra Medieval (this study). VA = Valença(Marado et al 2018). AMM = Mesquita de Mértola…”

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Biting into the Truth: Connecting oral pathology and stable isotopes through the paradigmatic example of a hyper-specialized marine diet in Medieval Pontevedra (NW Iberia)

Veiga-Rilo,

López-Costas

2023

Preprint

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Human feeding patterns have been reconstructed in Archaeology by analysing either oral pathology or stable isotope ratios in human skeletal remains. However, no clear agreement has been developed between these two methodologies. The main objective of this study is to determine if we can establish a link between them when analysing a population with a hyper-specialized diet, in this case marine resources. To reach this goal we developed a conjoined multi-isotope analysis in collagen and bioapatite (δ13Ccol, δ15Ncol, δ13Ccar and δ18Ocar) and a detailed study of oral health (caries, antemortem loss, periapical lesions, periodontal disease, calculus, and wear). All available skeletons with at least one preserved tooth from two cemeteries of the medieval town of Pontevedra (n = 34) were researched. The buried individuals belonged to the guild of fishers and artisans, professions which were dominant among the families of medieval Pontevedra. The evidence of δ18Ocar indicates that most people seem to have local origins. The diet was based on marine fish protein with contributions of millets (e.g. δ13Ccar -11.87 ± 1.79‰) that seems to be slightly higher in individuals linked to artisanal guilds. Oral pathology study shows severe dental wear from an early age, including hypercementosis due to compensatory eruption, as well as moderate-high presence of caries and dental calculus. Both the oral pathology and the isotopic signal differ from that observed in other areas of the Iberian Peninsula. This study points to the existence of connections between findings of the two methodologies, and specifically an association between intense dental wear and high consumption of marine resources. At the same time, this analysis implies the necessity of caution in estimation of age by dental wear in populations linked to the sea.

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Biting into the truth: Connecting oral pathology and stable isotopes through the paradigmatic example of a hyper-specialized marine diet in Medieval Pontevedra (NW Iberia)

Veiga-Rilo,

Cortizas,

López-Costas

2024

Archaeol Anthropol Sci

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Human feeding patterns have been reconstructed in Archaeology by analysing either oral pathology or stable isotope ratios in human skeletal remains. However, no clear agreement has been developed between these two methodologies. The main objective of this study is to determine if we can establish a link between them when analysing a population with a hyper-specialized diet, in this case marine resources (and millet/maize). To reach this goal we developed a conjoined multi-isotope analysis using collagen and bioapatite (δ13Ccol, δ15Ncol and δ13Ccar) and a detailed study of oral health (caries, antemortem loss, periapical lesions, periodontal disease, calculus, and wear). All available skeletons with at least one preserved tooth from two cemeteries of the medieval town of Pontevedra (n = 34) were studied. The buried individuals belonged to the guild of fishers and artisans, professions which were dominant among the families of medieval Pontevedra. A detailed FTIR-ATR study of extracted bone bioapatite showed a high correlation between bioapatite carbonate content, carbonate typical vibrations, and FTIR-ATR indices related to bone diagenesis, which is in line with previous research. No significant correlations were found with bioapatite yield and isotopic composition (δ13Ccar and Δ13C), ruling out possible diagenetic effects. The diet was based on marine fish protein with contributions of millets (e.g., δ13Ccar -11.9 ± 1.8‰) that seems to be slightly higher in individuals linked to artisanal guilds. The oral pathology study shows severe dental wear from an early age (Grade 2–4 in permanent dentition for 20% of infants and 60% of juveniles in M1), as well as moderate-high presence of caries in permanent dentition (64%, 22/34) and dental calculus (72%, 24/33). Both the oral pathology and the isotopic signal differ from that observed in other areas of the Iberian Peninsula. This study points to the existence of connections between findings of the two methodologies, and specifically an association between intense dental wear and high consumption of marine resources and millet. At the same time, this analysis implies the necessity of caution in estimation of age by dental wear in populations linked to the sea.

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Dental and oral nonmetric traits in a Coimbra reference sample: testing intrasample chronological and spatial variation

Cited by 5 publications

References 41 publications

Marked Directional Skull Asymmetry in the Araucan Horse

Marked Directional Skull Asymmetry in the Araucan Horse

Biting into the Truth: Connecting oral pathology and stable isotopes through the paradigmatic example of a hyper-specialized marine diet in Medieval Pontevedra (NW Iberia)

Biting into the truth: Connecting oral pathology and stable isotopes through the paradigmatic example of a hyper-specialized marine diet in Medieval Pontevedra (NW Iberia)

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