Biomaterial Database

Helical conformation of Treponema pallidum (Nichols strain), Treponema paraluis-cuniculi, Treponema denticola, Borrelia turicatae, and unidentified oral spirochetes. 1981

D E Stepan, and R C Johnson

Borrelia turicatae (mouse virulent) and Treponema denticola, a small oral treponeme, formed right-handed helices as determined by scanning electron microscopy. Treponema pallidum (Nichols strain), Treponema paraluis-cuniculi, and two unidentified oral spirochetes displayed left-handed helices.

UI	MeSH Term	Description	Entries
D008855	Microscopy, Electron, Scanning	Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.	Scanning Electron Microscopy,Electron Scanning Microscopy,Electron Microscopies, Scanning,Electron Microscopy, Scanning,Electron Scanning Microscopies,Microscopies, Electron Scanning,Microscopies, Scanning Electron,Microscopy, Electron Scanning,Microscopy, Scanning Electron,Scanning Electron Microscopies,Scanning Microscopies, Electron,Scanning Microscopy, Electron
D010518	Periodontitis	Inflammation and loss of connective tissues supporting or surrounding the teeth. This may involve any part of the PERIODONTIUM. Periodontitis is currently classified by disease progression (CHRONIC PERIODONTITIS; AGGRESSIVE PERIODONTITIS) instead of age of onset. (From 1999 International Workshop for a Classification of Periodontal Diseases and Conditions, American Academy of Periodontology)	Pericementitis,Pericementitides,Periodontitides
D001898	Borrelia	A genus of gram-negative, anaerobic, helical bacteria, various species of which produce RELAPSING FEVER in humans and other animals.
D013144	Spirochaetales	An order of slender, flexuous, helically coiled bacteria, with one or more complete turns in the helix.	Spirochetes,Spirochete
D014208	Treponema	A genus of microorganisms of the order SPIROCHAETALES, many of which are pathogenic and parasitic for man and animals.
D014210	Treponema pallidum	The causative agent of venereal and non-venereal syphilis as well as yaws.