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

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What is placed to prevent a tray from seating too deeply onto the arch or quadrant?

Bite registration material

Spacers

Spacers are used to prevent a tray from seating too deeply onto the arch or quadrant. Bite registration material, dental wax, and utility wax are not used for this purpose. Bite registration material is used to capture the occlusal relationship between the arches. Dental wax is used for creating custom trays or bite blocks. Utility wax is used to modify appliances and brackets.

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Dental wax

Utility wax

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