The growth of tooth dentin is incremental, so its formation represents a dietary record in early life. With archeological skeletons, applying sequential stable isotope analysis to the horizontal sections of tooth dentin has revealed weaning patterns and dietary changes that took place during childhood. However, the assignment of ages to dentin serial sections (DSSs) is problematic due to the changing extension rate and oblique growth layers of dentin, and these effects have not been quantified. This study presents a mathematical model for investigating the corresponding age range of the horizontal DSSs of human permanent incisors, canines, and molars.

中文翻译：

---

牙齿牙本质系列切片的时间分辨率模糊。

牙本质的生长是渐进的，因此其形成代表了早期的饮食记录。对于考古学的骨骼，对牙本质的水平部分进行连续的稳定同位素分析，发现了儿童时期的断奶模式和饮食变化。但是，由于牙本质的扩展率和倾斜的生长层的变化，年龄分配到牙本质连续切片（DSS）的工作是有问题的，这些影响尚未得到量化。这项研究提供了一个数学模型，用于研究人类永久性门牙，犬齿和臼齿的水平DSS的相应年龄范围。