Diastema is

Options

A. Toothless part of jaw
B. Teeth bearing part of jaw
C. Hard palate
D. Soft palate .

Answer

To answer the question "Diastema is:", we will analyze each of the provided options step by step.

### Step-by-Step Solution:

1. **Understanding Diastema**:
- Diastema refers to a gap or space that occurs between two teeth. It is most commonly observed between the upper front teeth (incisors).

2. **Evaluating the Options**:
- **Option 1: Toothless part of jaw**: This option suggests that diastema is a section of the jaw where there are no teeth. This is not accurate because diastema specifically refers to the space between teeth, not the absence of teeth.
- **Option 2: Teeth wearing part of jaw**: This option implies that diastema is related to the wearing down of teeth. While wear can affect spacing, diastema itself is not defined by wear but rather by the presence of a gap.
- **Option 3: Hard palate**: The hard palate is the bony front part of the roof of the mouth. This is unrelated to the concept of diastema.
- **Option 4: Soft palate**: The soft palate is the back part of the roof of the mouth, also unrelated to diastema.

3. **Identifying the Correct Answer**:
- Since diastema is defined as the gap between teeth, the most appropriate description is that it is a "toothless part of the jaw" in the sense that it is a space where teeth do not touch. Therefore, the best answer is **Option 1: Toothless part of jaw**.

### Final Answer:
Diastema is the toothless part of the jaw.

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