In which type of dentition, each tooth in the buccal cavity is embedded in a socket of jaw bone?

Options

A. Heterodont
B. Thecodont
C. Diphyodont
D. Monophyodont

Answer

To answer the question, "In which type of dentition, each tooth in the buccal cavity is embedded in a socket of jaw bone?" we will analyze the given options step by step.

### Step-by-Step Solution:

1. **Understanding Dentition**:
- Dentition refers to the arrangement, types, and structure of teeth in the mouth. It is important to know the different types of dentition to answer the question correctly.

2. **Analyzing the Options**:
- **Heterodont**: This term refers to having different types of teeth (incisors, canines, premolars, molars) that serve various functions. While humans have heterodont dentition, this does not specifically refer to the embedding of teeth in sockets.

- **Thecodont**: This type of dentition is characterized by teeth that are embedded in sockets (alveoli) of the jawbone. This is the key feature that matches the question. Mammals, including humans, have thecodont dentition.

- **Diphyodont**: This term describes the dental pattern where teeth are replaced twice in a lifetime (deciduous and permanent teeth). While humans are diphyodont, this does not pertain to the embedding of teeth in sockets.

- **Monophyodont**: This type of dentition refers to having only one set of teeth throughout life, which is not the case for humans. Again, this does not relate to the embedding of teeth in sockets.

3. **Conclusion**:
- Based on the analysis, the correct answer is **Thecodont** dentition, as it specifically refers to the type where each tooth is embedded in a socket of the jawbone.

### Final Answer:
The type of dentition in which each tooth in the buccal cavity is embedded in a socket of the jaw bone is **Thecodont**.