HOSA Dental Terminology Practice

What is the characteristic appearance of a plaque?

1. A fluid-filled blister

2. A smooth surface with raised edges

3. A solid mass with irregular borders

4. A small, blister-like elevation

The correct answer is: A smooth surface with raised edges

The characteristic appearance of a plaque in a dental context refers to a smooth surface with raised edges. This type of lesion typically presents in a way that differentiates it from other types of dental conditions. Plaque is essentially a thickened area of tissue that can appear as a slightly elevated, smooth patch on mucous membranes or on the surface of teeth. In dentistry, plaque is also used to describe biofilm that accumulates on teeth, comprised of bacteria, that forms a smooth layer initially but can create more irregular structures as it matures. The smooth surface can suggest that the plaque is still in an early stage before additional complications or calcification occurs, which would lead to a different appearance. This understanding helps dental professionals identify and diagnose plaque during examinations. The other options, such as a fluid-filled blister or a solid mass with irregular borders, describe different types of lesions that do not align with the properties of plaque. Thus, the identification of plaque as having a smooth surface with raised edges is crucial for recognizing it and managing dental health effectively.