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. 2024 Jan 5;58(1):37–43. doi: 10.26650/eor.20241248958

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Figure 1. — Microscopic images of the tissue samples of all groups (hematoxylin and eosin staining). (a) Healthy group: Normal periodontal membrane, alveolar bone, and cement. (b) Periodontitis group: Periodontium with intense vascularization (v), hyperemia with osteoclasts (arrow) at the alveolar bone border, and moderate inflammatory cell infiltration (asterisk). (c) Prophylaxis group: Mild vascularization (v) and mild inflammatory cell infiltration (asterisk) in the periodontal ligament, osteoclasts (arrow), and osteoblasts (arrowhead) in alveolar bone. (d) Therapeutic group: Osteoblasts (arrowhead) formed at the border of the alveolar bone.