Strengths Nice consistency and good handling properties -- no slumping, stays put, not sticky. Ample shades for every situation. Logical enamel shades after learning the system. Vital appearance, nice chameleon effect, great color matching. Really good esthetic effects for anterior and posterior uses. Minimal voids. Can be polished to a high gloss. Exceeds 80% cure goal in proximal box when cured for only 20 seconds. Fluorescence is very close to tooth structure for dentin shades. Unique shade guide.
Weaknesses Filler load on the low end. Only half of the evaluators really liked the shade guide. Shade designation on the Singles containers could be easier to read. Non-Vita enamel shades may be confusing to use and are more opaque than we prefer. Fluorescence of enamel shades is poor, appearing much darker compared to tooth structure.
BOTTOM LINE Ultradent finally hit the bullseye with Mosaic when it comes to handling and esthetics, but those funky enamel shade monikers still leave us with a learning curve steeper than we prefer.