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This topology image reveals the following structural information: The periodontal fibers extend from the cemental surface, and in wavy course passes around the cells and their processes. Each collagen fibril is distinct and separate from adjacent fibrils. Fibrils may cross each other in different planes and produce a palisade-like arrangement. As they insert into the cementum, the periodontal fibrils are arranged perpendicular to the surface. Even when they run parallel or tangential to the cemental surface they turn, before inserting, and enter the cementum in an approximately perpendicular position.
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