Indian Journal of Dermatology (Jan 1995)

Hardness Of Human Finger Nails

  • Gupta A.B,
  • Haldar B

Journal volume & issue
Vol. 40, no. 1
pp. 23 – 28

Abstract

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This paper presents the Rockwell superficial hardness of human finger nails in vitro and its difference due to age, sex and pathological conditions. A highly significant (p<0.01) negative correlation (r = - 0.78) is found to exit between the thickness (X) and the superficial hardness (Y) of the upper surface of the finger nails, The regression equation of Y on X is Y= - 32.26X + 63.82.