Developmental defects in the teeth of three wild chimpanzees from the Taï forest.

@article{Smith2015DevelopmentalDI,
  title={Developmental defects in the teeth of three wild chimpanzees from the Ta{\"i} forest.},
  author={Tanya M. Smith and Christophe Boesch},
  journal={American journal of physical anthropology},
  year={2015},
  volume={157 4},
  pages={
          556-70
        }
}
OBJECTIVES Developmental defects in teeth (accentuated lines and hypoplasias) have played a critical role in studies of childhood disease, nutrition, weaning, environmental variation, and early mortality. While these enigmatic structures have been lauded for their potential insights into human evolution, few studies have examined defects in individuals of known histories. MATERIALS AND METHODS Here we document defects in the molars of three wild juvenile chimpanzees from the Taï forest (Pan… 
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Citation Type

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Predictions of the coevolutionary disequilibrium and mosaic-nutrient extinction models through the study of dental wear and enamel hypoplasia of Equus and Bison from various North American localities suggest that environmental changes during the late Pleistocene significantly impacted North American equids.
Enamel hypoplasia and dental wear of North American late Pleistocene horses and bison: an assessment of nutritionally based extinction models – ERRATUM
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Predictions of the coevolutionary disequilibrium and mosaic-nutrient extinction models are tested through the study of dental wear and enamel hypoplasia of Equus and Bison from various North American localities, suggesting that environmental changes during the late Pleistocene significantly impacted North American equids.
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Quantifying linear enamel hypoplasia in Virunga Mountain gorillas and other great apes.
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This work uses quantitative criteria to characterize the depth of LEH defects and "normal" perikymata in great apes, and finds that mountain gorillas have shallow defects compared to other taxa, which may have led to their underestimation in previous studies.
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The results show that male mandrills might form accentuated lines at the time of potentially stressful events too, but most potentially stressful life history events for males take place after dental development is complete, reflecting differences that may influence reproductive success.
Is There a Link Between Matriline Dominance Rank and Linear Enamel Hypoplasia? An Assessment of Defect Prevalence and Count in Cayo Santiago Rhesus Macaques (Macaca mulatta)
TLDR
The results show that although hypoplasia prevalence and count were numerically higher in the combined group of low-and mid-ranking matrilines than in high-rankingMatrilines, this effect was not statistically significant and future studies would benefit from using large sample sizes and collecting detailed behavioral data to determine if and when social status mediates enamel defect formation.
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The evaluation of the Yale Peabody Museum collection provides a baseline for future research and testable hypotheses for alternate techniques, such as isotopic analyses of calculus and noninvasive genetic testing, and ultimately allow for comparisons between modern and historical environmental and behavioral variables.
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