**Core Concept**
The estimation of age using dental examination involves analyzing the developmental stages of teeth, which can provide a rough estimate of an individual's age. This method is particularly useful in forensic odontology and pediatric dentistry. The process involves examining the morphology and structure of teeth, including the presence of root development, crown formation, and the appearance of secondary dentin.

**Why the Correct Answer is Right**
The correct method for estimating age from teeth involves examining the developmental stages of teeth, which can be divided into three main categories: primary teeth (incisors and molars), permanent incisors, and permanent molars. The estimation is based on the presence of root development, crown formation, and the appearance of secondary dentin. This method is particularly useful in pediatric dentistry and forensic odontology. The key structures involved in this process include the cemento-enamel junction, the root formation, and the appearance of secondary dentin.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not specify a method for estimating age from teeth. There are several methods available, including the examination of dental development, the analysis of dental wear, and the study of dental abnormalities.

**Option B:** This option is incorrect because it is not a recognized method for estimating age from teeth. While dental radiographs can provide valuable information about dental development, they are not a primary method for estimating age.

**Option C:** This option is incorrect because it is not a specific method for estimating age from teeth. Dental development can be affected by various factors, including genetics, environment, and nutrition, making it a less reliable method for estimation.

**Option D:** This option is incorrect because it is too vague and does not specify a method for estimating age from teeth. Dental development is a complex process that involves the coordinated growth and differentiation of various tissues, making it a challenging task to estimate age accurately.

**Clinical Pearl / High-Yield Fact**
A key concept to remember when estimating age from teeth is that the development of permanent teeth is influenced by genetics, environment, and nutrition. This means that the rate of dental development can vary significantly between individuals, making it essential to consider these factors when estimating age.

**Correct Answer: C.**