Which classification in Black's categorization includes cavities on both mesial and occlusal surfaces of posterior teeth?

Which classification in Black's categorization includes cavities on both mesial and occlusal surfaces of posterior teeth?

• A. Class 1
• B. Class 3
• C. Class 2
• D. Class 5

Answer: (C)

In Black’s classification of cavities, Class 2 specifically refers to cavities that occur on the proximal surfaces (mesial or distal) of posterior teeth, which can include both the mesial and occlusal surfaces. This classification is particularly important for recognizing and treating tooth decay in areas where multiple surfaces are affected, as cavities in these locations can lead to further complications if not properly managed. Class 1 pertains to cavities in the pits and fissures of posterior teeth, but does not involve the mesial or distal surfaces. Class 3 focuses on cavities in the proximal surfaces of anterior teeth, while Class 5 refers to cavities located on the gingival third of the facial or lingual surfaces of any tooth. Therefore, the correct answer highlights the significance of understanding the involvement of mesial and occlusal surfaces in posterior teeth as part of effective dental practice.

In Black’s classification of cavities, Class 2 specifically refers to cavities that occur on the proximal surfaces (mesial or distal) of posterior teeth, which can include both the mesial and occlusal surfaces. This classification is particularly important for recognizing and treating tooth decay in areas where multiple surfaces are affected, as cavities in these locations can lead to further complications if not properly managed.

Class 1 pertains to cavities in the pits and fissures of posterior teeth, but does not involve the mesial or distal surfaces. Class 3 focuses on cavities in the proximal surfaces of anterior teeth, while Class 5 refers to cavities located on the gingival third of the facial or lingual surfaces of any tooth. Therefore, the correct answer highlights the significance of understanding the involvement of mesial and occlusal surfaces in posterior teeth as part of effective dental practice.