Figure 1. Study flowchart. a,b) Sequence of collection and polishing of enamel and dentin blocks (4×4 mm2). c) Blocks Initial selection by determining microhardness. d) Blocks inclusion, using a metallic matrix e) Cavitary preparation using diamond tip (#1149) f) Restoration with selected restorative material. g) Material excess removal with sandpaper (#1200) h) Application of acid-resistant varnish to create a control side for each specimen. i, j, k) Samples subjected to 5-day erosion and abrasion cycles and storage in remineralizing solution. l,m) Profilometry and AFM analysis performance.
