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Age Estimation Methods

Forensic Odontology • NEET MDS Study Guide • AI-Generated Notes

⭐ High-Yield Facts for Exam

  • Nolla = calcification stages (children).
  • Demirjian = developmental stages (children).
  • Gustafson = adults, 6 parameters.
  • Parameters: attrition, periodontosis, secondary dentin, cementum, root resorption, transparency.
  • Combine methods for reliability.

Age Estimation Methods

Children

  • Nolla's stages — tooth calcification/formation stages.
  • Demirjian method — widely used, based on tooth development stages (good reliability in children).
  • Eruption sequence/charts.

Adults

Gustafson's method uses 6 regressive (age) changes in a tooth: Attrition, Periodontosis (gingival recession), Secondary dentin, Cementum apposition, Root resorption, and Root transparency.

Exam Tips ⭐

Demirjian = children; Gustafson = adults (6 parameters: A, P, S, C, R, T).

📝 Practice MCQs — Age Estimation Methods

Q1. Gustafson's method of age estimation uses how many parameters?
A. 4
B. 5
C. 6
D. 8
Show Answer
✅ Answer: C
Gustafson described 6 regressive changes.
Q2. Which method is widely used for age estimation in children?
A. Gustafson
B. Demirjian
C. Boyde
D. Bolton
Show Answer
✅ Answer: B
The Demirjian method assesses tooth development in children.
Q3. Root transparency is a parameter in:
A. Demirjian
B. Nolla
C. Gustafson's adult method
D. Moyers
Show Answer
✅ Answer: C
Root transparency is one of Gustafson's six adult parameters.
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