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. 2015 Sep 25;10(9):e0138802. doi: 10.1371/journal.pone.0138802

Fig 1. Working hypotheses on the relationships between OES/EDJ morphologies.

Fig 1

OES, occlusal enamel surface; EDJ, enamel-dentine junction; OPC, orientation patch count The four hypotheses on how the OES echoes EDJ morphology are considered Following hyp#1 the correlation between the EDJ and the OES is expected to be total and both organs are expected to show the same amount of occlusal complexity (OPC); hyp#2, the correlation between the EDJ and the OES is expected to be high and both organs are expected to show different amount of occlusal complexity; hyp#3, the correlation between the EDJ and the OES is expected to be low and the OES is expected to show greater amount of occlusal complexity; hyp#4, the correlation between the EDJ and the OES is expected to be low and the OES is expected to show lower amount of occlusal complexity.