Commonest disease of teeth is

Options

A. Mottling
B. Caries
C. Dissolution of enamel
D. Pyorrhoea.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the most common disease of the teeth. This requires knowledge of dental diseases and their prevalence.

2. **Identifying Common Dental Diseases**: Some common dental diseases include dental caries (cavities), gingivitis, periodontitis, and enamel hypoplasia. Among these, we need to identify which one is the most prevalent.

3. **Defining Dental Caries**: Dental caries, commonly known as cavities, is a disease that occurs when the enamel of the teeth is damaged due to the action of bacteria. It is characterized by the formation of holes or cavities in the teeth.

4. **Mechanism of Dental Caries**: The process begins with food particles getting lodged on the teeth. If not cleaned properly, these particles allow bacteria to thrive. The bacteria metabolize the sugars in the food, producing acids that erode the enamel, leading to cavities.

5. **Progression of Dental Caries**: As the enamel is eroded, cavities form and can deepen, affecting the underlying dentine and eventually reaching the pulp of the tooth, which can cause pain and infection.

6. **Conclusion**: Based on the information gathered, dental caries is identified as the most common disease of the teeth.

7. **Final Answer**: The commonest disease of teeth is dental caries.

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