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The water binding capacity of the periodontal ligament and its role in mechanical function
Author(s) -
Ferrier J. M.,
Dillon E. M.
Publication year - 1983
Publication title -
journal of periodontal research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.31
H-Index - 83
eISSN - 1600-0765
pISSN - 0022-3484
DOI - 10.1111/j.1600-0765.1983.tb00384.x
Subject(s) - periodontal fiber , viscoelasticity , ligament , materials science , chemistry , displacement (psychology) , stress (linguistics) , composite material , dentistry , anatomy , biology , medicine , psychology , linguistics , philosophy , psychotherapist
The water binding capacity of porcine periodontal ligament samples was measured using the method of thermocouple psychrometry. The measured values for relative water capacity were 0.55 ± 0.07, 0.28 ± 0.05, and 0.20 ± 0.02 MPa −1 , at water chemical potentials of −2, −3, and −4 MPa. The measured water capacity is consistent with reported values for tooth displacement at small forces, but not at larger forces. This implies that water binding in the ligament could account for the viscoelastic properties at low stress, but not at higher stress.