Dental Nursing Practice Exam Prep: Practice Test, Questions & Study Guide

Plaque is characterized as a soft, sticky biofilm that forms on teeth as a result of bacteria feeding on carbohydrates from food. This biofilm consists of bacteria, saliva, and food particles, and if not removed regularly through oral hygiene practices, it can mineralize over time. When plaque is not adequately managed, it undergoes a process of calcification, resulting in the formation of tartar, also known as calculus.

Tartar is the hardened version of plaque, meaning it is difficult to remove and usually requires professional dental cleaning to eliminate. The presence of tartar can contribute to further dental issues, including gum disease and cavities, due to its mineral content and rough texture, which attract more plaque.

Understanding this distinction between the two is crucial for dental health. By recognizing that plaque is soft and requires regular cleaning, while tartar is the hardened product of neglected plaque, individuals can better appreciate the importance of maintaining good oral hygiene to prevent tartar buildup and protect their dental health.