Nano- and microhardness were comparable for shark teeth and for human teeth, both for dentin and enamel. This means that the hardness of the teeth is independent from the kind of apatite (human teeth: hydroxyapatite; shark teeth: fluoroapatite).
Nano- and microhardness were comparable for shark teeth andfor human teeth, both for dentin and enamel. This means that thehardness of the teeth is independent from the kind of apatite (humanteeth: hydroxyapatite; shark teeth: fluoroapatite).