**Question:** Best method to determine age upto 14 years is -

A. Radiography of permanent teeth
B. Radiography of deciduous teeth
C. Radiography of both permanent and deciduous teeth
D. Radiography of skull

**Core Concept:**

Determining a patient's age can be crucial in various medical scenarios, particularly when assessing growth and development, medical history, or legal requirements. In pediatric patients, dental development serves as a reliable indicator of age, as dental eruption and maturation progress in a predictable manner.

**Why the Correct Answer is Right:**

The correct answer, A, focuses on radiography of permanent teeth as they provide a more accurate estimation of age compared to deciduous teeth (option B) and skull (option D). This is because permanent teeth continue to develop until around 14 years of age, allowing dental maturity to serve as a reliable indicator of chronological age.

**Why Each Wrong Option is Incorrect:**

Option B, radiography of deciduous teeth, might have been tempting due to their early emergence in the oral cavity. However, deciduous teeth are replaced by permanent teeth around 12 years of age, rendering them less reliable for age estimation after this period.

Option D, radiography of skull, is less accurate for age estimation compared to dental radiographs. While skull growth can be correlated with age, dental development is more precise due to the predictable sequence of dental eruption.

Option C, radiography of both permanent and deciduous teeth, is incorrect because the inaccurate estimation of age from deciduous teeth (see explanation above) results in an overall less precise method compared to focusing solely on permanent teeth.

**Clinical Pearl:**

Dental radiography using permanent teeth is the preferred method for estimating age up to approximately 14 years old. This technique helps in assessing growth and development, evaluating pubertal stages, and aiding in forensic age estimation.

**Correct Answer:**

A. Radiography of permanent teeth

**Why the Correct Answer is Right:**

Radiography of permanent teeth is the most accurate method for estimating age up to around 14 years, considering that these teeth continue to develop until that age and their eruption sequence is well-defined. This method is particularly useful in clinical settings involving growth and development assessment, evaluating pubertal stages, and in forensic age estimation.