**Core Concept:** Age estimation is an important aspect of forensic odontology, which involves the use of dental findings to determine the age, sex, and other biological profiles of an individual. Different methods are available for age estimation, including dental maturity based on dental development and dental eruption.

**Why the Correct Answer is Right:** The correct answer is D (Lingual Incisor Method) because this method is not commonly used for age estimation. The other options (A, B, and C) involve assessing dental development and maturity, which can provide an approximate age estimation based on dental findings.

**Why Each Wrong Option is Incorrect:**

A. **Milestone Method (A)**: This method involves identifying specific dental milestones, such as the appearance of permanent teeth or the eruption of specific teeth, and correlating these events with an individual's age. Although this method is widely used, the correct answer is not A.

B. **Goswami's Method (B)**: This method is based on the number of erupted permanent teeth and their maturity status. It is a commonly used method for age estimation, making option B incorrect.

C. **Kerckhofs' Method (C)**: This method involves evaluating the dental maturity of the first permanent molars and premolars. It is also a reliable method for age estimation, making option C incorrect.

D. **Lingual Incisor Method (D)**: This method focuses on the age at which the permanent incisors erupt and their relative maturity. Although it is not commonly used for age estimation, options A, B, and C are more reliable and accurate methods for estimating an individual's age based on dental findings.

**Clinical Pearl / High-Yield Fact:** Forensic odontology plays a crucial role in various legal and forensic investigations, including age estimation, as it can provide valuable information about an individual's dental history.

**Correct Answer:** C. Kerckhofs' Method

In summary, age estimation from teeth involves assessing the dental maturity of the first permanent molars and premolars (option C). This method is based on the observation that the development and maturity of the first permanent molars and premolars can provide an approximation of an individual's age, making option C the correct answer. Other methods, such as milestone method (A) and Goswami's method (B and C), are more widely used and reliable for age estimation based on dental findings.