Ace the California RDA Written Exam 2026 – Drill, Fill, and Thrill Your Way to Success!

Auto-mix is the best option because it automates the mixing process, ensuring precise and consistent mixtures every time. Hand mixing, while it may seem simple and convenient, can lead to uneven mixtures and inaccurate results. Suction-based and vortex mixing may also provide inconsistent mixtures and are not specifically designed for final impression material mixing. Therefore, auto-mix is the most effective and reliable option for ensuring accurate and consistent final impression material mixing for the assistant.