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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
The particle size in Williams E-Z Gold:
assistant
The correct answer is  Powdered gold is made by a combination of chemical precipitation and atomization, with an average particle size of 15 mm. The atomized particles are mixed together in wax, cut into pieces, and wrapped in No.4 or No.3 foil.
Several sizes of these pellets are available. This product is marketed as Williams E-Z Gold (Ivoclar-Williams, Amherst, NY).
Reference: Sturdevant operative dentistry. 7th EDITION, Page No:e68