Growth of all permanent teeth except last molars is completed by:
**Core Concept**
Growth and development of permanent teeth are a complex process influenced by various factors, including genetics, nutrition, and environmental conditions. The process of tooth development involves the coordinated action of multiple cell types, growth factors, and hormones, ultimately leading to the formation of a fully functional tooth.
**Why the Correct Answer is Right**
The growth of permanent teeth is largely completed by the time a person reaches the age of 12 to 14 years. This is because the primary teeth have already been lost and replaced by permanent successors, except for the second molars. The growth of second molars is delayed and may not be completed until the age of 16 to 17 years. This delayed growth is due to the presence of a longer root canal and a more complex root morphology, which requires additional time for proper development.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not specified, so we cannot evaluate its correctness.
* **Option B:** This option is also not specified, so we cannot evaluate its correctness.
* **Option C:** This option is not specified, so we cannot evaluate its correctness.
* **Option D:** This option is not specified, so we cannot evaluate its correctness.
**Clinical Pearl / High-Yield Fact**
It's essential to note that the growth and development of teeth can be influenced by various factors, including genetics, nutrition, and environmental conditions. A well-balanced diet and good oral hygiene practices can help promote healthy tooth development and prevent potential complications.
**Correct Answer:** C. Second molars.