All the Following Are Guidelines for Using the Air-Water Syringe

question 34

Multiple Choice

All the following are guidelines for using the air-water syringe except:

• A)using air on the mouth mirror when indirect vision is involved.
• B)directing the syringe tip toward the tooth being treated.
• C)directing the syringe tip toward the patient's nose and lips.
• D)keeping a close distance between the tooth and syringe tip.

---

Definitions:

Optic Disc

The point on the retina at which the optic nerve fibers exit the eye, creating the blind spot as it lacks photoreceptors.

Fovea Centralis

A small depression in the retina of the eye where visual acuity is highest, due to the concentration of cone cells.

Blind Spot

The blind spot is an area on the retina without photoreceptors where the optic nerve exits the eye, resulting in a gap in the visual field.

Astigmatism

A common vision condition causing blurred vision due to an irregular curvature of the cornea or the lens inside the eye.