Adult age estimation

  1. What is an adult?
    • Bones have stopped growing longitudinally 
    • teeth have fully erupted
    • generally ~18+
  2. Adult ageing methods look at ______ changes in the skeleton.

    Primarily _____ of joint surfaces
    • Senescent changes
    • Degeneration
  3. what are common skeletal collections used?
    • Terry collection
    • Hammam-Todd collection
    • Spitalfields
    • Coimbra identified skeletal collection
    • raymond dart collection
  4. Why might there be bias when it comes down to ageing methods?
    devised on specific populations
  5. Large canadian age/sex collection
    Grant collection - U of T
  6. which is more difficult adult or juvenile ageing?
    Adult - very difficult to assign indivduals tight age categories so place age categories with wider age ranges
  7. What are 3 common age systems used, which one is used in our class and what is it divided into?
    • North american system
    • British system
    • continental european system

    • We use British system
    • -young adult (18-25)
    • -young middle adult (26-35)
    • -Old middle adult (36-45)
    • - Old adult (46+)
  8. what are bones that have not finished fusing in adults?
    • Clavicle
    • sternum
    • Os Coxa
    • sacrum
  9. who was Todd T.W? 

    what collection did he use

    Who did he study?

    What bone did he study

    how many stages did he use? what age frame?

    what can be used with this method
    studied male and female white skeletons from Hamann-todd collection

    Used the pubic symphysis 

    determined 10 stage ageing system ranging between 16 & 50 years

    bone casts
  10. What is the suchey brooks method?

    What specimans did she use?

    Skeletons must be ____ first

    what bone did she investigate?
    Based on american austopsy specimans from los angeles county coroner

    different standards for males and females so skeleton must be Sexed first (ancestry not a factor)

    Pubic symphysis
  11. ageing with pubic symphysis - suchey brooks
    Image Upload 1
  12. Ageing with auricular surface - developed by who?

    using what collection?

    why is the auricular surface a useful method?

    difficult or easier to use then pubic symphysis?

    same for males and females?

    Hammam-Todd collection

    frequently preserved when pubic symphyss destroyed

     age a lot more difficult to assess than pubic symphysis - requires a lot of pracitse

  13. Ageing with auricular surface using lovejoys method
    • 1 - 20-24 billowing and fine granularity
    • 2 - 25-29 reduction of billowing but retention of youthful apprearence
    • 3 - 30-34 loss of billowing increased granularity
    • 4 - 35-29 unifor coarse granularity
    • 5 - 40-44 transition from coarse granularity to dense surface
    • 6 - 45-49 - completion of densification with complete loss of granularity
    • 7- 50-59 - dense irregular surface with rugged topography . Activity in retroauricular surface
    • 8- 60+ - breakdown of surface with marginal lipping, macroporosity and marked retroauricular ctivity.
  14. Transverse organisation?


    Transverse organisation: youthful billows replaced by striae then all transverse org. lost

    texture: youthful fine grain become coarser with age then turns to dense smooth bone which eventually degenerates

    Porosity: increases with age- microporosity appreas then macroporosity
  15. regions of ilium used for auricular surface ageing

    Superior demiface?
    inferior demiface?
    retroauricular area?
    Apex - portion of auricular surface that articulates with posterior arcuate line

    Superior demiface - part of auricular surface below apex

    Inferior demiface - part of auricular surface below apex

    Retroauricular area - area between auricular surface and posterir inferir iliac spine
  16. ageing with auricular surface (lovejoy)
    Read description of phases and see which description best fits auricular surface

    don't rely on pictures - only illustrate general features of phases
  17. Who are buckberry and chamberlain (2002)?

    What systerm did they develop and for what bone?

    Composite scores created that correspond to ____ ___
    • Developed system for ageing auricular surface that scores age-related stages for different features:
    • -transverse organisation
    • -surface texture
    • -micro/macro porosity
    • -changes in apex

    correspond to __Age___  ___Ranges__
  18. Blind tested method on known ___/___ population of ___, London.

    Showed revised technique _____ to apply with Low
    inter-& intra _____ _____
    • Age/sex
    • London
    • Easier
    • Observer error
  19. Who developed method of ageing with cranial sutres?
    Mendl and lovejoy
  20. Ageing with auricular surface

    Transverse organisation
    retroauricular area
    transverse organisation -  youthful billows replaced by striae then all transverse organisation lost

    Porosity - increases with age (micro to macro)

    • texture - fine grain to coarse grain, smooth,dense bone
    • retroauricular area - bone startss to smooth, eventually exhibits ostephytes and outgrowths

    apex - starts out thin and sharp, thickens and becomes blunt with age
Card Set
Adult age estimation
Adult ageing