Harris Lines  and  Linear Enamel Hypoplasia Susan Aylard Necropolis Session 2 May 2010
Harris Lines <ul><li>Long bones, scapula, &  pelvic bones </li></ul><ul><li>Thickness: 1 – 10 mm </li></ul><ul><li>Thickes...
Long Bone Development
Harris Lines <ul><li>“ Normal”  tibia Tibia with Harris Lines </li></ul>
The Tyrolean Alps Iceman
Linear Enamel Hypoplasia <ul><li>Horizontal lines </li></ul><ul><li>Small pits, furrows, large grooves </li></ul><ul><li>F...
Tooth Development
LEH at Sanisera
Enamel Hypoplasia
Palaeopathological Usefulness <ul><li>Non-specific indicators of physiological stress </li></ul><ul><li>Periods of arreste...
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Session no. 2, 2010: Harris Lines &amp; Linear Enamel Hypoplasia, by Susan Aylard

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Presentation on Harris Lines and LEH in teeth.

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Session no. 2, 2010: Harris Lines &amp; Linear Enamel Hypoplasia, by Susan Aylard

  1. 1. Harris Lines and Linear Enamel Hypoplasia Susan Aylard Necropolis Session 2 May 2010
  2. 2. Harris Lines <ul><li>Long bones, scapula, & pelvic bones </li></ul><ul><li>Thickness: 1 – 10 mm </li></ul><ul><li>Thickest in areas of rapid growth </li></ul><ul><li>Bilateral </li></ul><ul><li>Manifest: 6 mos. - 5 yrs. </li></ul><ul><li>Disappear with age </li></ul>
  3. 3. Long Bone Development
  4. 4. Harris Lines <ul><li>“ Normal” tibia Tibia with Harris Lines </li></ul>
  5. 5. The Tyrolean Alps Iceman
  6. 6. Linear Enamel Hypoplasia <ul><li>Horizontal lines </li></ul><ul><li>Small pits, furrows, large grooves </li></ul><ul><li>Front teeth usually </li></ul><ul><li>Deficiency in enamel thickness </li></ul>
  7. 7. Tooth Development
  8. 8. LEH at Sanisera
  9. 9. Enamel Hypoplasia
  10. 10. Palaeopathological Usefulness <ul><li>Non-specific indicators of physiological stress </li></ul><ul><li>Periods of arrested growth </li></ul><ul><li>LEH – age of occurrence </li></ul><ul><li>LEH – permanent </li></ul><ul><li>Harris Lines – fade due to remodelling </li></ul><ul><li>Childhood health of an individual </li></ul><ul><li>Comparison of populations </li></ul><ul><li>Temporal comparisons within a population </li></ul>

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