Taking a stump shade in esthetically-critical cases with all-ceramic restorations is a must. The Natural Die shade guide from Ivoclar comes in corresponding custom die composite materials for your ceramist to use as a custom try-in to ensure the final result has the correct value, chroma and hue desired. The A3 in this case is the ingot selection shade guide from Ivoclar Vita A-D and will be mixed with some A2 in certain areas.
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