What area of the tooth should the prophy angle be primarily focused on?

The focus on the cervical third near the gingival margin when using a prophy angle is grounded in the goal of effective plaque and stain removal from the tooth. This area is often where plaque accumulation is most significant due to its proximity to the gumline, where saliva flow and the natural cleansing mechanisms of the mouth may be less effective.

Cleaning this region is crucial, as the cervical third frequently hosts deposits that could lead to gingival inflammation, periodontal issues, or decay if not properly maintained. By targeting this area, dental professionals help prevent oral health complications and promote overall dental hygiene.

While other parts of the tooth, such as the occlusal surface, incisal edges, or middle third, are important for overall cleaning, the cervical third is particularly significant for maintaining periodontal health and preventing diseases that could arise from neglecting that crucial juncture between the tooth and gums.