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Inflammation in rat periodontal tissues, hematoxylin and eosin (magnification ×10): I—dentin of the tooth root; II—connective epithelium; III—dental alveolus with detached mucous laminae; IV—fibrinoid swelling of gingival fibers; V—detachment and irregular thinning of sulcular epithelium; VI—smoothed ridges of the basal layer of the gingival epithelium.
