What color is typically associated with tobacco stains?

Tobacco stains on teeth are typically characterized by a light brown to dark brown or black coloration. This discoloration occurs due to the tar and nicotine present in tobacco products, which can adhere to the enamel of the teeth and lead to significant staining over time. The staining process can create a range from lighter brown shades to very dark hues, reflecting the severity and duration of tobacco use.

The other color options do not accurately represent the appearance of tobacco stains. For instance, bright white to light yellow is more commonly associated with early plaque or superficial stains rather than the deeper and more severe staining of tobacco use. Deep red to purple shades might be associated with certain types of food dyes or bleeding gums but do not reflect the characteristic staining of tobacco. Finally, a grayish to bluish tint is not typical for tobacco stains; rather, it can be an indicator of other dental issues or conditions. Thus, light brown to dark brown or even black is the correct characterization for tobacco-related discoloration on teeth.