Elastic fiber system in fibrous zone of mouse mandibular condyle.

概要

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The ultrastructural localization of the elastic fiber system was examined in fibrous zone of mandibular condyle in the mice at 1, 2 and 4 weeks of the age. Sparce fibrillar components were observed at 1 week, among fibroblasts. At 2 weeks, thick collagen bundles appeared and ran in various directions. The collagen bundles formed layers at 4 weeks and the layers of collagen fibers were at right angles to one another. The elastic fiber system was localized in the area where collagen fiber bundles crossed each other. The ultrastructure of elastic fiber system varied along with maturation of the condyle. Many oxytalan or elaunin fibersappeared at 1 or 2 weeks, but the mature elastic fiber system was observed at 4 weeks. The stress on mastication contributed to the growth of the elastic fiber system.
歯科基礎医学会の論文