Why is plaque considered an infection?

Plaque is considered an infection primarily because it is an indication of bacterial activity in the oral cavity. The presence of plaque reflects the accumulation of bacteria that thrive in the mouth, forming a biofilm on teeth and gums. This biofilm is made up of various types of bacteria, and their metabolic activities can lead to dental issues such as cavities and periodontitis.

When bacteria in plaque metabolize sugars from food, they produce acids that can damage tooth enamel and irritate gums. This pathogenic activity is what characterizes plaque as infectious. Effective oral hygiene practices aim to disrupt this bacterial biofilm and reduce the risk of infection by physically removing plaque and inhibiting bacterial growth.

While antibiotics can be used to address bacterial infections, they are not typically effective or recommended for treating plaque; instead, prevention through dental hygiene is the primary recommendation. Additionally, although plaque is indeed common among both humans and animals, the mere presence of bacteria in oneself is not sufficient to classify it as an infection. Furthermore, while good hygiene is essential, plaque can form again if oral care routines are not consistently maintained, but that does not mean it cannot be managed effectively with proper practices.