アブストラクト(18巻2号:The Bulletin of Kanagawa Dental College)

The Bulletin of Kanagawa Dental College

English

Title : A Practical Concept of Bone Regeneration in Periodontal Therapy
Subtitle : BKDC CLINICAL AND RESEARCH TOPICS : Bone as a Tooth Supporting Tissue
Authors : Masato Minabe, Akira Sugaya*
Authors(kana) :
Organization : Department of Clinical Periodontology, School of Dentistry, Ohu University, *Department of Periodontology, Kanagawa Dental College
Journal : The Bulletin of Kanagawa Dental College
Volume : 18
Number : 2
Page : 165-170
Year/Month : 1990 / 9
Article : Report
Publisher : Kanagawa Odontological Society
Abstract : A successful healing following periodontal regeneration procedures is that cells from the periodontal ligament are allowed to selectively colonize the instrumented root surface rather than the gingival epithelial cells, gingival fibroblasts and osteoblasts. "The concept that only the periodontal ligament cells (PDL cells) have the ability to form new attachment" is the base of the biological principle of guided tissue regeneration, which has been considered to be a scientific fact by serial studies since 1980. Particularly about the relation between osteogenesis and periodontal tissue regeneration, it is considered that the alveolar bone adjacent to the root surface and osteoblasts originating in bone do not have the potential to the formation of new attachment, and the preferential access of the cells derived from bone to the root surface lead to root resorption and ankylosis. But, the recent reports suggested that osteogenesis is not necessarily a preventive factor against attaining new attachment. The observations approving this statement are as follows; (1) the surface structure of new formed cementum at the region of vigorous osteogenesis is similar to that of the regenerated bone, (2) the presence of the second substratum at a given distance from the root surface facilitates the migration and orientation of fibroblasts, and thus the gingival connective tissue fibers run perpendicularly between the root surface and the second substratum, (3) the incidence of root resorption remains unchanged regardless of the presence or absence of osteogenesis.
Practice : Dentistry
Keywords : Regeneration, Osteogenesis, Bone Implant, GTR