Clinical Analysis of Oxidation Reduction Potential in Periodontal Pockets

Research Project

Project/Area Number	01571052
Research Category	Grant-in-Aid for General Scientific Research (C)
Allocation Type	Single-year Grants
Research Field	Conservative dentistry
Research Institution	Ohu University
Principal Investigator	IIDA Masato Ohu Univ Dept of Clinical Perio., 歯学部・歯科保存学第1講座, 教授 (00135485)
Co-Investigator(Kenkyū-buntansha)	YAZAWA Hiroshi Ohu Univ. Dept. of Clinical Periodontology, 歯科保存学第1講座, 助手 (40210231)
Project Period (FY)	1990 – 1991
Project Status	Completed (Fiscal Year 1990)
Budget Amount *help	¥2,100,000 (Direct Cost: ¥2,100,000) Fiscal Year 1990: ¥800,000 (Direct Cost: ¥800,000) Fiscal Year 1989: ¥1,300,000 (Direct Cost: ¥1,300,000)
Keywords	Oxidation Reduction Potential / Periodontal Pocket / Pocket Activity / 酸化還元電位(Eh) / 新しいEhプロ-ベ / 歯周健康管理システム
Research Abstract	The purpose of the present study was to clarify the relation between oxidation reduction potential and clinical findings including bacteriologic test. Each sample was collected from periodontal pockets (patient) or gingival sulcus (healthy volunteer), and saliva. Oxidation reduction potential (Eh) was also measured in pockets or gingival sulcus and saliva. Bacterial colony was observed by anaerobicaly culturing on RS-blood agar plate, and Eh was measured using newly designed Ehーprobe (pocket probe type). Black pigmented Bacteroides (B. P. B) were detected at higher level in periodontal pockets than in gingival sulcus. The pocket Eh decreased accompanying with the pocket depth. The relation between pocket Eh and B. P. B. colony count was not clear.