SEM micrographs of dentin surface areas before and after treatment with Bifluorid 12.
Figure 6a: There are several open dentin tubules on the sensitive dentin (marked with arrows) before the treatment (1,000×, bar=50 μm). Figure 6b: Most dentin tubules are occluded immediately after the application of Bifluorid 12 (1,050×, bar=50 μm). Figure 6c: Some dentinal tubules are re-opened one month after Bifluorid 12 treatment (tiny holes marked with arrows) (1,070×, bar=20 μm.