👉 Subicterical is a term used in dentistry to describe an area of tooth decay where the enamel has been eroded into a white layer known as a subgingival plaque. This type of plaque can be caused by bacteria, but it also occurs when there are excess sugars and acids that are produced during food digestion or metabolism. In dental practice, subicterical plaque is usually treated with a solution containing chlorhexidine and hydrogen peroxide, which helps to neutralize the acid and prevent further