Figure 1. µTBS results for the RMGI adhesive and restorative applied to enamel and dentin by the experimental surface treatments. Numbers above columns indicate mean values and respective standard deviation (between brackets); n stands for total number of specimens and ptf for number of pre-testing failures (to which 0 MPa values were attributed during the statistical analysis). Groups identified by different letters below their respective columns are statistically different (p < 0.05).