Morphological Changes in the Microvascular Architecture of the Vascular Plexus of the Periosteum following the Free Gingival Autograft on Denuded Alveolar Bone

• Published in: Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) Vol. 36; no. 3; pp. 599 - 611
• Main Authors: IMAI, Hisao, YANAGIHARA, Kazuaki, NOBUTO, Takahiro, RI, Shigeyoshi, TANDA, Hiromi, YAMAOKA, Akira
• Format: Journal Article
• Language: Japanese
• Published: JAPANESE SOCIETY OF PERIODONTOLOGY 1994
• Subjects: Free gingival autograft; Microvascular architecture; Periosteum; SEM; Wound healing
• ISSN: 0385-0110; 1880-408X
• DOI: 10.2329/perio.36.599

The purpose of this study was to determine the role of the periosteal vasoganglion in the periodontal region and closely observe vascular dynamics in the restorative process of the vasoganglion following free gingival autografts on denuded alveolar bone. We used 45 mongrel dogs with healthy periodontium in the experiment. Free gingiva was autografted on denuded alveolar bone in accordance with Yanagihara's method. The recipient bed was prepared in a definite position of the attached gingiva of the right maxillary canine tooth. The graft was taken from the attached gingiva on the left. Changes in the periosteal vasoganglion manifested in vascular casts were closely examined on postoperative days 3, 5, 7, 14, 21, 28, 42, 56, and 84. As a result, it was found that during the healing process following the free gingival autograft, the periosteal vessels progressed from the cut margin of the recipient bed in the marginal part of the graft, whereas new vessels grew out from the bone or marginal portion in the area between the margin and the center.