Admission Test for Dental Hygiene (ATDH) 2025 – 400 Free Practice Questions to Pass the Exam

The term "plaque" in dental hygiene specifically refers to a sticky film of bacteria that accumulates on teeth. This biofilm forms from a combination of saliva, food particles, and bacteria, and it can lead to tooth decay and gum disease if not properly removed through regular brushing and flossing.

Understanding the nature of plaque is essential for effective oral hygiene practices, as it harbors harmful bacteria that produce acids when they metabolize sugars. These acids can demineralize tooth enamel, leading to cavities, and can also irritate the gums, possibly resulting in periodontal disease over time. The focus on plaque underscores the importance of routine oral care in preventing dental problems and maintaining overall oral health.

This definition distinguishes plaque from other dental phenomena, such as tartar, which consists of hardened mineral deposits that result from untreated plaque, and does not refer to any specific product like toothpaste or conditions affecting the gums directly.