Table 1 Summary of the Spearman’s correlation coefficient values (rs) and their respective significances (p-values), for the association between the different methods used to measure erosion.

From: A new hand-held optical reflectometer to measure enamel erosion: correlation with surface hardness and calcium release

 

rSRIloss Table-Top

rSMHloss

Calcium Release

rSRIloss Hand Held

0.81 p < 0.001

0.79 p < 0.001

0.70 p < 0.001

rSMHloss

0.77 p < 0.001

–

–

Calcium Release

0.69 p < 0.001

–

–

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