What is the main characteristic of Class VI decay?

Class VI decay is defined by its specific location, which primarily involves the incisal edges of anterior teeth and the cusp tips of posterior teeth. This type of decay typically occurs due to factors such as wear or trauma that expose the enamel on these surfaces to caries. Unlike other classifications of decay, which might affect different areas of the tooth or have varying characteristics, Class VI decay is particularly associated with these exposed, functional areas of the teeth that are subjected to high levels of stress from biting and chewing.

The other classifications of decay focus on different tooth surfaces: for instance, root decay pertains to the areas at or below the gum line, interproximal decay targets the spaces between teeth, and decay in molar teeth refers to general caries that might not be classified under a specific type. Therefore, Class VI's unique association with the incisal edges and cusp tips helps dental professionals identify and treat this condition effectively.