HESI General Chairside Assisting Practice Exam

Which change should be made in the patient's chair position when working on the mandibular arch?

1. Lower the chair back

2. Raise the chair back

3. Adjust the chair height

4. Tilt the chair forward

The correct answer is: Raise the chair back

When working on the mandibular arch, raising the chair back is the appropriate change to make. This adjustment is essential because it allows for better visibility and access to the lower jaw, facilitating the dentist's ability to work effectively on the teeth in that area. An elevated chair back positions the patient's head at a comfortable and manageable angle, which helps the dental professional maintain proper ergonomic posture and reduces strain during the procedure. This position also enhances the patient's comfort during treatment, as it ensures they are well-supported and not awkwardly positioned. While adjustments to chair height and tilt can be important for different procedures or for patient comfort, the specific action of raising the chair back is most effective for accessing the mandibular arch. This optimal positioning is critical for achieving successful outcomes in dental treatments targeting the lower teeth.