SUCTION TIP PLACEMENT
a. High Velocity Suction. High velocity suction is also used in four-handed
dentistry to maintain a clean, clear field of vision. It provides control of fluids in the
patient's mouth by moving massive volumes of fluid quickly. The suction tip eliminates
the need for a cuspidor. Fluids can be picked up without touching the surface of the
tissue. The suction tip is reversible to allow the dental specialist to reach all areas of
the mouth. Proper positioning of the suction tip is essential for efficiency and patient
comfort. See figure 4-9.
Figure 4-9. Suction tip placement.
b. List of Five Rules. There are five rules for use of the suction tip.
(1) Hold the suction tip with the thumb-to-nose grasp with palms down. Use
the same grasp when holding the suction tip with the left hand. This grasp is preferable
to the pen grasp.
Position the suction tip first and then position the handpiece.
Position the suction tip as close to the tooth as possible without touching
Place the suction tip parallel to the buccal and lingual surface.
Place the edge of the suction tip even with the occlusal surface.