Carious lesions located on the proximal surfaces of central and lateral incisors are classified as which type?

The correct classification for carious lesions located on the proximal surfaces of central and lateral incisors is Class III. This classification is specifically designed to address cavities that affect the interdental surfaces of anterior teeth, which are the central and lateral incisors in this case.

Class III cavities are particularly significant because they occur on the mesial or distal surfaces of these teeth, which are not visible when a person smiles. This affects both esthetics and function, making it critical for dental professionals to accurately identify and treat these lesions.

Class I cavities, in contrast, refer to carious lesions on the occlusal surfaces of posterior teeth and buccal or lingual pits of molars and premolars. Class II pertains to lesions on the proximal surfaces of posterior teeth, while Class IV involves proximal surfaces of anterior teeth that also engage the incisal edge, thus including more extensive damage. Recognizing these distinctions is vital for proper diagnosis and treatment planning in dental practice.