Question

A tooth has a MO carious lesion, , what G.V. Black classification of carious lesions is this (I-VI)?

Answer 1

A MO carious lesion affects the mesial and ocusal surfaces and is classified as a Class II lesion in the G.V. Black classification system. This lesion requires prompt treatment to prevent further issues such as pulp infection or abscess.

Step-by-step explanation:

A MO carious lesion refers to dental caries on the mesial and occlusal surfaces of a tooth, which in the G.V. Black classification of carious lesions is categorized as a Class II lesion. The G.V. Black classification system divides carious lesions into six types based on the tooth surface affected:

1. Class I: Pits and fissures on occlusal surfaces of molars and premolars, buccal or lingual pits of molars, and lingual pits of incisors.
2. Class II: Proximal surfaces of premolars and molars.
3. Class III: Proximal surfaces of incisors and canines that do not involve the incisal angle.
4. Class IV: Proximal surfaces of incisors and canines that do involve the incisal angle.
5. Class V: Gingival third of the facial or lingual surfaces of any tooth.
6. Class VI: Incisal edges of anterior teeth and cusp tips of posterior teeth.

When cavities or dental caries develop in these areas, they can lead to more serious issues if left untreated, such as infection of the pulp or abscess formation. The principal bacterial species involved in caries development is Streptococcus mutans, which is considered the most significant cariogenic bacterium.