What should be the ideal location for the index finger in the modified pen grasp?

In the modified pen grasp, the index finger should ideally be positioned opposite the thumb. This specific positioning allows for better control and maneuverability of the instrument being held, which is essential for effective coronal polishing. When the index finger is opposite the thumb, it creates a stable grip that enhances the precision of movements, ensuring that the dental hygienist can navigate around the contours of the teeth and the treatment area with ease.

This configuration supports a balanced and comfortable hold, reducing strain on the hand and allowing for extended periods of use without fatigue. The opposite placement of the index finger and thumb leverages the strength of both digits, fostering a natural and fluid motion while performing polishing tasks. Effective instrument control is crucial in dental procedures to promote safety and efficacy, making this grasp technique fundamental for practice.

Other positions, such as pointing forward, bending at a right angle, or resting on the cheek, would not provide the same level of stability or control, potentially affecting the quality of work and the comfort of the operator.