von Solodkoff M
Tierarztl Prax. 1992 Feb;20(1):102-9.
This tusk specimen contains a metal spear with a wooden component, which is surrounded by a quiver-like osseous encasement. The injury was probably caused by a drop-spear trap. The spear entered the tusk through the base of the pulp. The osseous encasement is constructed by pulpocytes which turned to odontoblasts after stimulation and are responsible for the development of secondary dentine. Secondary dentine is characterized by its irregular arrangement of dentine tubules, in contrast to those of true ivory.
这个獠牙标本包含一个带有木质部件的金属矛，其被一个箭袋状的骨质包裹物环绕。该损伤可能是由坠矛陷阱造成的。矛从牙髓底部进入獠牙。骨质包裹物是由牙髓细胞构建而成，这些牙髓细胞在受到刺激后转变为成牙本质细胞，并负责继发性牙本质的形成。继发性牙本质的特征是其牙本质小管排列不规则，这与真正的象牙不同。
