Identify the incorrect statement regarding human dentition:

Options

A. The dental formula of a young child would be 2102/2102
B. The human teeth are thecodont, diphyodont and heterodont
C. The enamel is secreted by the odontoblasts and the dentin by the ameloblasts
D. The pulp of the human tooth is sometimes also called as the "nerve" of the tooth

Answer

To identify the incorrect statement regarding human dentition, we can analyze each option provided in the question:

### Step 1: Analyze Option 1
- **Statement**: The dental formula of a young child would be 2102 upon 2102.
- **Explanation**: The dental formula for a young child is indeed 2-1-0-2 for the upper jaw and 2-1-0-2 for the lower jaw, indicating 2 incisors, 1 canine, 0 premolars, and 2 molars on each side. Thus, this statement is correct.

### Step 2: Analyze Option 2
- **Statement**: The human teeth are thicodont, diphydon, and heterodont.
- **Explanation**: This statement is also correct. "Thicodont" means that teeth are set in sockets of the jawbone, "diphydon" indicates that humans have two sets of teeth in their lifetime (primary and permanent), and "heterodont" means that humans have teeth of different shapes and sizes (incisors, canines, premolars, and molars).

### Step 3: Analyze Option 3
- **Statement**: The enamel is secreted by the odentoblast and the dentine by the ameloblast.
- **Explanation**: This statement is incorrect. In reality, enamel is secreted by ameloblasts, while dentine is secreted by odontoblasts. The statement incorrectly attributes the secretion of enamel to odontoblasts and dentine to ameloblasts.

### Step 4: Analyze Option 4
- **Statement**: The pulp of the human tooth is sometimes called the nerve of the tooth.
- **Explanation**: This statement is correct. The pulp contains nerves and blood vessels, and it is often referred to as the "nerve of the tooth."

### Conclusion
After analyzing all options, the incorrect statement regarding human dentition is **Option 3**: "The enamel is secreted by the odentoblast and the dentine by the ameloblast."

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