For proper stability and control of the handpiece during coronal polishing, which technique is recommended?

Using an intra-oral fulcrum is essential for maintaining proper stability and control of the handpiece during coronal polishing. This technique involves placing a finger or fingers against a stable tooth structure within the mouth to create a pivot point. The fulcrum allows the dental professional to achieve greater precision and minimize hand fatigue, as it provides a stable base from which to maneuver the handpiece effectively.

This technique is particularly valuable during coronal polishing because it enhances the clinician's ability to apply the correct amount of pressure while ensuring that the polishing cup is applied uniformly against the tooth surface. By stabilizing the handpiece in this manner, the clinician can operate with increased confidence and reduce the risk of accidental slips that could potentially harm the soft tissues or adjacent teeth.

In contrast, while options involving palm grips, extra-oral fulcrums, and the use of gloves are important for various reasons, they do not provide the same level of control and stability specific to intra-oral procedures. A palm grip may help with grip but does not stabilize the handpiece in close quarters like an intra-oral fulcrum does. Similarly, extra-oral fulcrums can be useful in certain scenarios, but they lack the precise control needed when working inside the mouth