title: Composition of human periodontal ligament cells in tissue culture.
abstract: The cells in the PDL of monkeys have been demonstrated to have an unusual growth behavior in vitro since fibroblast-like cells have been reported to grow on top of epithelial-like cells. In this study growth of epithelial-like cells along with fibroblast-like cells was seen in human PDL from three out of 15 permanent teeth when explantation technique was used whereas only fibroblast-like cells were seen after enzymatical degradation. Occasionally fibroblast-like cells were seen growing on top of epithelial-like cells.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D046508:Culture Techniques; D004847:Epithelial Cells; D005260:Female; D005347:Fibroblasts / Q000166:cytology; D006801:Humans; D008875:Middle Aged; D010513:Periodontal Ligament / Q000166:cytology*