Three-dimensional imaging and analysis of annual layers in tree trunk and tooth cementum

@inproceedings{Mller2022ThreedimensionalIA,
  title={Three-dimensional imaging and analysis of annual layers in tree trunk and tooth cementum},
  author={Bert M{\"u}ller and Muriel Stiefel and Griffin Rodgers and Mattia Humbel and Melissa Osterwalder and Jeannette A. von Jackowski and Gerhard Hotz and Adriana A. Velasco Guadarrama and Henry T. Bunn and Mario Scheel and Timm Weitkamp and Georg Schulz and Christine Tanner},
  booktitle={Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring},
  year={2022}
}
Comparable to annual rings present in a tree trunk, human tooth cementum contains yearly deposited incremental layers often termed incremental lines, which are generally visualized from tooth slides with optical microscopy in two dimensions. These micrometer-thin incremental lines are used to decode age-at-death and stress periods over the lifetime of an individuum. One can also visualize these layers without physical slicing by means of hard X rays because of density modulations. Within this… 

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Tooth cementum annulation (TCA) is used for determining age-at-death and stress periods based on yearly deposited lines in the root cementum of human teeth. Traditionally, TCA analysis employs
Imaging of the human tooth cementum ultrastructure of archeological teeth, using hard x-ray microtomography to determine age-at-death and stress periods
Tooth cementum annulation (TCA) is used by anthropologists to decipher age-at-death and stress periods based on yearly deposited incremental lines (ILs). The destructive aspect of the TCA method,
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Dental Cementum in Anthropology
  • Materials Science
  • 2022
Tooth enamel and dentin are the most studied hard tissues used to explore hominin evolution, life history, diet, health, and culture. Surprisingly, cementum (the interface between the alveolar bone
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TLDR
It is found that the internal microstructures of saurischian teeth are very different from advanced ornithischia teeth, reflecting differences in dental developmental strategies.
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