California Registered Dental Assistant (RDA) Written Practice Exam

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In what specific area are the maxillary and mandibular models trimmed differently?

  1. Posterior margin

  2. Base

  3. anterior pattern

  4. Side walls

The correct answer is: anterior pattern

The maxillary and mandibular models are trimmed differently in the anterior pattern area. This is because the anterior pattern area is where the front teeth of the mouth are located, and these have a different shape and size compared to the back teeth. The posterior margin, base, and side walls are not directly influenced by the shape of the front teeth, making them incorrect choices.