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Examples include iron (black stain), iodine (black), copper (green), nickel (green) and cadmium (yellow-brown). [3] Antibiotics. Tetracycline and its derivatives are capable of intrinsic discoloration (discussed below). However other antibiotics may form insoluble complexes with calcium, iron and other elements that cause extrinsic staining. [11]
The perception of tooth colour is multi-factorial. Reflection and absorption of light by the tooth can be influenced by a number of factors including specular transmission of light through the tooth; specular reflection at the surface; diffuse light reflection at the surface; absorption and scattering of light within the dental tissues; enamel mineral content; enamel thickness; dentine colour ...
Deferoxamine is produced by removal of the trivalent iron moiety from ferrioxamine B, an iron-bearing sideramine produced by the actinomycetes, Streptomyces pilosus.Its discovery was a serendipitous result of research conducted by scientists at Ciba in collaboration with scientists at the Swiss Federal Institute of Technology in Zurich and the University Hospital in Freiburg, Germany [15] [4 ...
Tyramine is an amino acid found in some foods and can be part of a chain reaction that leads blood vessels in the head to narrow and dilate, which causes throbbing pain, according to the National ...
Rare but serious allergic reactions are possible; symptoms include itching, swelling, and difficulty breathing. Certain formulations of stannous fluoride in dental products may cause mild tooth discoloration; this is not permanent and can be removed by brushing, or can be prevented by using a stabilised stannous fluoride toothpaste. [15] [16] [34]
Cetylpyridinium chloride is known to cause tooth staining in approximately 3 percent of users. [14] The Crest brand has noted that this staining is actually an indication that the product is working as intended, as the stains are a result of bacteria dying on the teeth. [ 15 ]
Intravenous iron infusions can cause skin rash, hives, itchiness and flush. Skin staining and discolouration can occur at the site of infusion if the iron and saline solution leaks outside the vein into the surrounding tissue. [14] Skin discolouration can be semi-permanent or permanent.
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