Ace the California RDA Written Exam 2025 – Drill, Fill, and Thrill Your Way to Success!

Question: 1 / 400

Which model do you begin trimming first?

Mandibular

Maxillary

The first step in trimming a model is to identify the area of work, which is typically the mandibular arch since it is the more stable arch. This provides a firm foundation for the maxillary arch to be trimmed and ensures a stable articulation. Trimming both models simultaneously or starting with neither of them would likely result in an inaccurate and unstable articulation. Therefore, it is recommended to begin trimming the maxillary model first to achieve the best results in trimming and articulation.

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Both simultaneously

Neither

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