Table 1 Significance values for the impact of individual factors, as well as their interaction, on the relative surface microhardness (rSMH) at each erosion time (1–5 min).

From: Differences in susceptibility of deciduous and permanent teeth to erosion exist, albeit depending on protocol design and method of assessment

Factor

rSMH1min

rSMH2min

rSMH3min

rSMH4min

rSMH5min

Individual

Tooth

< 0.001

0.071

< 0.001

0.019

< 0.001

pH

< 0.001

 < 0.001

< 0.001

< 0.001

< 0.001

Agitation

< 0.001

 < 0.001

< 0.001

< 0.001

< 0.001

Interactions

Tooth*pH

0.785

0.585

0.261

0.344

< 0.001

Tooth*agitation

0.176

0.031

0.468

0.004

0.041

pH*agitation

0.032

0.896

< 0.001

< 0.001

< 0.001

Tooth*pH*agitation

0.980

0.405

0.002

0.157

0.972

  1. Significant values are in [bold].
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