What effect does lighter pressure have on the degree of abrasion?

Lighter pressure applied during polishing or abrasive procedures is known to decrease the degree of abrasion. When less pressure is exerted, the abrasive particles have reduced contact force with the surface being treated. This leads to a gentler interaction, which limits the material removal rate and minimizes the potential for damaging the underlying surface.

In contrast, applying heavy pressure can increase abrasion since it allows more forceful contact between the abrasive and the surface, resulting in a higher rate of material removal and a rougher finish. Hence, lighter pressure is crucial in dental procedures, particularly to preserve tooth structure while achieving a polished surface. By understanding the relationship between pressure and abrasion, dental assistants can effectively manage polishing techniques to enhance patient outcomes while minimizing the risk of damage to the enamel or restorations.