[Observations on gingival fibers of upper premolar region--structures and functions of dentogingival fibers].
It was the purpose of this paper to observe the structural features and discuss the functions of the dentogingival fibers in the human gingiva of the upper premolar region. They were observed by a light microscope. The results are as follows: 1. There is a large number of dentogingival fibers in the lingual gingiva of the upper premolar region. 2. Ten to fifteen dentogingival fibers form a bundle. And the bundle is twisted. 3. The dentogingival fibers increase in proportion to the thickening of the gingiva, and it seems that the dentogingival fibers is one of the main functional fibers. 4. Enlargement of the epithelial attachment and the increase of the fibers in the papillae accompany the cell differentiation of the epithelial basal cells. 5. It is observed that the tension of the dentogingival fibers extend widely to the epithelial cells of the stratum spinosum.
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Department of Oral Anatomy, Faculty of Dentistry, Tokyo Medical and Dental University.
D001641:Bicuspid; D005881:Gingiva / Q000502:physiology / Q000648:ultrastructure*; D006801:Humans; D008875:Middle Aged