What is a primary characteristic of plaque attachment?

Plaque attachment is characterized by its strong adherence to tooth surfaces, particularly in challenging areas such as interproximal spaces and along the gumline. This firm attachment is crucial because it allows plaque to accumulate and pose a risk for dental issues such as caries and periodontal disease. The ability of plaque to adhere securely means that effective oral hygiene practices are essential to disrupt this bacterial community and prevent its harmful effects on oral health.

The other options do not accurately reflect the nature of plaque attachment. For instance, plaque does not easily detach, and while it can form in specific locations, it's not accurate to say it forms more rapidly on anterior teeth compared to posterior teeth, where the occlusion and anatomy can influence plaque retention. Additionally, oral hygiene practices significantly affect plaque formation and retention, challenging the idea that plaque is unaffected by such measures.