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. Author manuscript; available in PMC: 2017 Apr 1.
Published in final edited form as: Dent Mater. 2016 Jan 8;32(4):499–509. doi: 10.1016/j.dental.2015.12.005

Figure 1.

Figure 1

Microstructure of the resin composite Lava Ultimate (left) and the glass-ceramic IPS Empress CAD (right, courtesy of Ivoclar). Both materials were polished down to 1 µm prior to imaging. In addition, IPS Empress CAD surface was acid etched with 40% hydrofluoric vapor (20 s) to allow a better examination of the crystalline content.