What type of stains are primarily caused by food, tobacco, and drinks?

Extrinsic stains are primarily caused by substances that adhere to the surface of the teeth, including food, tobacco, and drinks. These stains result from the accumulation of pigments from these products, which can penetrate the outer layer of the enamel but remain on the surface. Factors such as poor oral hygiene can contribute to the formation and visibility of these stains.

In contrast, intrinsic stains are those that originate from within the tooth structure, often due to factors like genetics, medication, or trauma. Endogenous stains are a subset of intrinsic stains specifically caused by conditions that affect the development of the teeth, while exogenous stains generally refer to those that come from external sources but do not specifically denote surface stains like extrinsic do. Thus, recognizing extrinsic stains as a primary consequence of dietary choices highlights the importance of oral hygiene and lifestyle choices in maintaining dental aesthetics.