Journal of Dental Research, Vol 62, 873-876, Copyright © 1983 by International & American Associations for Dental Research Online Journals
Ultrastructural characteristics of progenitor cell populations in the periodontal ligament
T. R. Gould
Electron microscope radio-autography was used in an attempt to identify any
relationship between the location and degree of differentiation of
progenitor cells in the periodontal ligament (PDL). Ligament fibroblasts
were classified on the basis of their nuclear/cytoplasmic ratio and their
distance to the closest blood vessel measured. It was determined that an
undifferentiated paravascular progenitor cell population exists, and that
the PDL also contains progenitor cells showing a range of
cytodifferentiation.