ANTH 365 AGE ESTIMATION

What is the main difference between subadult and adult age estimation?

Subadults use growth/development; adults use degeneration

What is the most reliable method for subadult age estimation?

Dental development

Includes:

• Tooth eruption

• Crown & root formation

Up to what age is diaphyseal length most useful?

About 10 years

What age range is epiphyseal fusion most useful for?

~10–25 years

What age range is suture closure most useful for subadults?

• Metopic suture: ~2–3 years

• Basilar synchondrosis: ~17–25 years

What is the most commonly used adult aging method?

Pubic symphysis (Suchey-Brooks)

What happens to the pubic symphysis with age?

Ridged → smooth → porous

Why are adult age estimates less accurate?

Due to variability in degeneration

What is a major limitation of cranial suture closure?

High variability and wide age ranges

What does osteon counting measure?

Bone remodeling (osteon density)

What happens to the auricular surface with age?

Becomes denser, then porous and irregular

What method should you use if only the skull is available?

Cranial suture closure

Why should multiple methods be used?

To improve accuracy and reduce error

What is the last step in age estimation?

Expert synthesis of all methods

What is the key limitation of histological methods?

They are destructive

What does “age estimation is an art and a science” mean?

It requires both data and professional judgment