All are true about permanent teeth, except: MP 11
## Core Concept
The question pertains to the characteristics of permanent teeth in humans, focusing on aspects such as their development, structure, and eruption patterns. Understanding these aspects is crucial for dental and medical professionals.
## Why the Correct Answer is Right
The correct answer, although not directly provided, needs to be evaluated based on general knowledge about permanent teeth. Typically, permanent teeth, also known as secondary teeth, start erupting when an individual is about 6 years old and continue to erupt until they are about 12-14 years old. These teeth are more in number and are designed for the long-term use, replacing the primary (baby) teeth.
## Why Each Wrong Option is Incorrect
- **Option A:** Without the specific details of option A, we cannot directly assess its accuracy. However, any statement about permanent teeth being more numerous (32 in total for a full set in humans), having a specific eruption sequence, or having certain structural characteristics (like the presence of premolars which replace primary molars) could be considered.
- **Option B:** Similarly, without specifics, if option B states a true characteristic, such as the types of teeth (incisors, canines, premolars, molars) or their functions, it would be accurate.
- **Option C:** This option's accuracy depends on its content. If it describes a true feature, such as the root structure or enamel thickness of permanent teeth, it would not be the incorrect statement.
- **Option D:** Given that this is the correct answer, it must present a false statement about permanent teeth.
## Clinical Pearl / High-Yield Fact
A key point to remember is that humans have two sets of teeth during their lifetime: the primary (deciduous) teeth and the permanent (secondary) teeth. The permanent teeth are designed for long-term use and have a more complex structure, including a larger number of teeth (32 for a complete set) and a variety of tooth types for different functions.
## Correct Answer: D.