Which articulator is semi-adjustable and allows limited adjustment to replicate recorded mandibular movements?

• A. Class 1 Articulators
• B. Class 2 Articulators
• C. Class 3 Articulators
• D. Class 4 Articulators

Answer: (C)

Articulators that are semi-adjustable let you tweak a few key settings to approximate how the jaw moves, based on recorded data. You can adjust condylar guidance and incisal guidance, and include a Bennett shift to simulate the lateral path of the mandible. This lets you reproduce protrusive and lateral movements in a controlled way, but not with perfect, patient-specific dynamics. That balance—enough adjustment to mirror recorded movements, without capturing every nuance of neuromuscular control—defines the semi-adjustable type. Non-adjustable hinges can’t replicate movement at all, while fully adjustable units can reproduce more complex movements if you have detailed recordings. So the semi-adjustable articulator is the best fit for reproducing recorded mandibular movements with limited adjustment.