Biomaterial Database

Two-year report of sealant effect on bacteria in dental caries. 1976

S L Handelman, and F Washburn, and P Wopperer

Teeth in which caries had penetrated the pits and fissures were sealed with an ultraviolet-light-polymerized sealant. Samples of carious dentin were taken from teeth that were not sealed and from teeth that were sealed, up to two years after the sealant had been placed. The major reduction in viable microorganisms occurred during the first two weeks, and there was a gradual reduction in the total count thereafter. At the end of two years, there was a 2,000-fold decrease in the number of cultivable microorganisms. Preliminary clinical and radiographic findings suggest that there was no progression of the carious lesions, but further studies are needed before this technique can be considered an alternative to conventional procedures.

UI	MeSH Term	Description	Entries
D010895	Pit and Fissure Sealants	Agents used to occlude dental enamel pits and fissures in the prevention of dental caries.	Dental Sealant,Dental Sealants,Fissure Sealant,Fissure Sealants,Pit And Fissure Sealant,Pit Fissure Sealant,Sealants, Tooth,Pit Fissure Sealants,Sealants, Dental,Fissure Sealant, Pit,Fissure Sealants, Pit,Sealant, Dental,Sealant, Fissure,Sealant, Pit Fissure,Sealant, Tooth,Sealants, Fissure,Sealants, Pit Fissure,Tooth Sealant,Tooth Sealants
D002452	Cell Count	The number of CELLS of a specific kind, usually measured per unit volume or area of sample.	Cell Density,Cell Number,Cell Counts,Cell Densities,Cell Numbers,Count, Cell,Counts, Cell,Densities, Cell,Density, Cell,Number, Cell,Numbers, Cell
D003731	Dental Caries	Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp.	Caries, Dental,Carious Lesions,Dental Cavities,Dental Cavity,Dental Decay,Dental White Spots,Carious Dentin,Decay, Dental,Dental White Spot,White Spot, Dental,White Spots, Dental,Carious Dentins,Carious Lesion,Cavities, Dental,Cavity, Dental,Dentin, Carious,Dentins, Carious,Lesion, Carious,Lesions, Carious,Spot, Dental White,Spots, Dental White
D003764	Dental Materials	Materials used in the production of dental bases, restorations, impressions, prostheses, etc.	Dental Material,Material, Dental,Materials, Dental
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001419	Bacteria	One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.	Eubacteria
D014466	Ultraviolet Rays	That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants.	Actinic Rays,Black Light, Ultraviolet,UV Light,UV Radiation,Ultra-Violet Rays,Ultraviolet Light,Ultraviolet Radiation,Actinic Ray,Light, UV,Light, Ultraviolet,Radiation, UV,Radiation, Ultraviolet,Ray, Actinic,Ray, Ultra-Violet,Ray, Ultraviolet,Ultra Violet Rays,Ultra-Violet Ray,Ultraviolet Black Light,Ultraviolet Black Lights,Ultraviolet Radiations,Ultraviolet Ray