to investigate possible microdamage/microwear to dental enamel caused by such usage , puncture-crushing experiments were carried out on single human teeth , using an instron compression apparatus on the following six test materials : makapansgat limeworks chert ( e.g. , taphonomy ) , fresh steer longbone , mongongo nuts , grewia berries , carob beans , and wild-onion bulbs .
C0011350
dental enamel
C0040426
teeth