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. 2011 Mar 18;6(3):e14769. doi: 10.1371/journal.pone.0014769

Figure 4. Dental wear stages.

Figure 4

Wear stages (1, 2, 5 and 7) for maxillary first molars were determined by evaluating the amount of dentin exposure and cusp removal [50]. Wear facets are outlined in green, while dentinal areas are colored in red. The areas colored in dark grey (examples of wear stages 5 and 7) are the result of the coalescence of two (or more) wear facets which are no longer identifiable.