Figure 5: Visual and stereomicroscope changes (×20) at 600°C. (a and c) Unrestored tooth before and after exposure, respectively. (b and d) Stereomicrographs of unrestored tooth before and after exposure, respectively. (e and g) Composite restored tooth before and after exposure, respectively. (f and h) Stereomicrographs of composite restored tooth before and after exposure, respectively. (i and k) Glass ionomer cement unrestored tooth before and after exposure, respectively. (j and l) Stereomicrographs of Glass ionomer cement restored tooth before and after exposure, respectively. (m and o) Amalgam unrestored tooth before and after exposure, respectively. (n and p) Stereomicrographs of amalgam restored tooth before and after exposure, respectively