HESI General Chairside Assisting Practice Exam

In which relationship should the mandible and maxilla be positioned when taking a bite registration?

1. Protruded

2. Retruded

3. Centric

4. Laterotrusive

The correct answer is: Centric

When taking a bite registration, the mandible and maxilla should be positioned in a centric relationship. This refers to the occlusion when the jaws are in a fully closed and relaxed position, allowing for optimal contact between the upper and lower teeth. It is the most stable position and is used to capture the exact relationship for creating accurate dental models, alignments of prosthetics, or orthodontic purposes. The centric occlusion position is critical because any deviation from this open or closed relationship could result in inaccuracies in dental restorations or orthodontic treatments. A bite registration taken in a centric relationship ensures that the natural bite is reproduced, leading to more predictable outcomes in dental procedures. This foundational concept is essential for dental assistants to understand as it is key in various clinical applications involving dental impressions and bite registrations.